In this photograph, taken by Frank Wolfe on December 24, 1968, President Lyndon B. Johnson poses with his growing family for a holiday portrait in the Yellow Oval Room. Seated from left: first daughter Luci Baines Johnson Nugent with her son Patrick Lyndon Nugent on her lap; First Lady Lady Bird Johnson; President Johnson with dog Yuki; and first daughter Lynda Bird Johnson Robb cradling infant daughter Lucinda Robb. The family's private Christmas tree is visible in the background. On the wall are paintings "The Forest" (left) and "House on the Marne" (right) by Post-Impressionist painter Paul Cézanne.

In this photograph, taken on April 11, 2005, President George W. Bush shakes hands with Prime Minister Ariel Sharon of Israel to welcome him to the Prairie Chapel Ranch, his home near Crawford, Texas. A Scottish Terrier, likely Barney, looks on. President Bush often entertained world leaders by hosting informal luncheons and dinners at the Prairie Chapel Ranch.

This photograph of Dale Haney, superintendent for the White House Grounds, leading Bo and Sunny, the Obama family's Portuguese Water Dogs, was taken by Matthew D'Agostino for the White House Historical Association on April 6, 2015. The presidential pooches joined President Barack Obama and First Lady Michelle Obama at the annual White House Easter Egg Roll. Bo and Sunny were also represented on some of the official White House Easter Eggs for 2015. While vibrantly colored wooden eggs had facsimiles of the president and first lady's signatures on the back, paw prints representing Bo and Sunny's signatures appeared on the back of plain American birch wood official White House Easter Eggs. In addition to his work on the grounds, Dale Haney has looked after every president's dog since King Timahoe, President Richard M. Nixon's Irish Setter.

This photograph of Dale Haney, superintendent for the White House Grounds, leading Bo and Sunny, the Obama family's Portuguese Water Dogs, was taken by Matthew D'Agostino for the White House Historical Association on April 6, 2015. The presidential pooches joined President Barack Obama and First Lady Michelle Obama at the annual White House Easter Egg Roll. Bo and Sunny were also represented on some of the official White House Easter Eggs for 2015. While vibrantly colored wooden eggs had facsimiles of the president and first lady's signatures on the back, paw prints representing Bo and Sunny's signatures appeared on the back of plain American birch wood official White House Easter Eggs. In addition to his work on the grounds, Dale Haney has looked after every president's dog since King Timahoe, President Richard M. Nixon's Irish Setter.

This photograph of Dale Haney, superintendent for the White House Grounds, leading Bo and Sunny, the Obama family's Portuguese Water Dogs, was taken by Matthew D'Agostino for the White House Historical Association on April 6, 2015. The presidential pooches joined President Barack Obama and First Lady Michelle Obama at the annual White House Easter Egg Roll. Bo and Sunny were also represented on some of the official White House Easter Eggs for 2015. While vibrantly colored wooden eggs had facsimiles of the president and first lady's signatures on the back, paw prints representing Bo and Sunny's signatures appeared on the back of plain American birch wood official White House Easter Eggs. In addition to his work on the grounds, Dale Haney has looked after every president's dog since King Timahoe, President Richard M. Nixon's Irish Setter.

This photograph of Dale Haney, superintendent for the White House Grounds, leading Bo and Sunny, the Obama family's Portuguese Water Dogs, was taken by Matthew D'Agostino for the White House Historical Association on April 6, 2015. The presidential pooches joined President Barack Obama and First Lady Michelle Obama at the annual White House Easter Egg Roll. Bo and Sunny were also represented on some of the official White House Easter Eggs for 2015. While vibrantly colored wooden eggs had facsimiles of the president and first lady's signatures on the back, paw prints representing Bo and Sunny's signatures appeared on the back of plain American birch wood official White House Easter Eggs. In addition to his work on the grounds, Dale Haney looked after every president's dog since King Timahoe, President Richard M. Nixon's Irish Setter.

This photograph of Dale Haney, superintendent for the White House Grounds, leading Bo and Sunny, the Obama family's Portuguese Water Dogs, was taken by Matthew D'Agostino for the White House Historical Association on April 6, 2015. The presidential pooches joined President Barack Obama and First Lady Michelle Obama at the annual White House Easter Egg Roll. Bo and Sunny were also represented on some of the official White House Easter Eggs for 2015. While vibrantly colored wooden eggs had facsimiles of the president and first lady's signatures on the back, paw prints representing Bo and Sunny's signatures appeared on the back of plain American birch wood official White House Easter Eggs. In addition to his work on the grounds, Dale Haney looked after every president's dog since King Timahoe, President Richard M. Nixon's Irish Setter.

This photograph was taken by Matthew D'Agostino on April 6, 2015, during the official White House Easter Egg Roll. Here, President Barack Obama leads Bo, one of the first family's Portuguese Water Dogs, down the steps of the South Portico. He is joined by the official White House Easter Bunny, who carries a bunch of balloons, commemorating the fifth anniversary of First Lady Michelle Obama's "Let's Move!" campaign. The theme of the official White House Easter Egg Roll in 2015 was #GimmeFive, which commemorated the fifth anniversary of the initiative by challenging the public to incorporate five new healthy habits into their daily routine, and share their positive lifestyle choices on social media. The event featured sports and fitness zones, cooking demonstrations, storytelling, appearances by costumed characters, musical performances, and classic seasonal activities such as an egg hunt and egg roll race. Performers at the event included rapper Diggy, girl group Fifth Harmony, pop duo MKTO, the cast of the Broadway musical "Newsies," “So You Think You Can Dance" all-star contestants, and entertainers from the classic children's television show "Sesame Street."

This photograph was taken by Matthew D'Agostino for the White House Historical Association on April 6, 2015, during the official White House Easter Egg Roll. Here, First Lady Michelle Obama leads Sunny, one of the first family's Portuguese Water Dogs, down the steps of the South Portico. President Barack Obama walks a short distance behind with Bo, the first family's other dog, and the official White House Easter Bunny. The theme of the official White House Easter Egg Roll in 2015 was #GimmeFive, which commemorated the fifth anniversary of the first lady's "Let's Move!" campaign by challenging the public to incorporate five new healthy habits into their daily routine, and share their positive lifestyle choices on social media. The event featured sports and fitness zones, cooking demonstrations, storytelling, appearances by costumed characters, musical performances, and classic seasonal activities such as an egg hunt and egg roll race. Performers at the event included rapper Diggy, girl group Fifth Harmony, pop duo MKTO, the cast of the Broadway musical "Newsies," “So You Think You Can Dance" all-star contestants, and entertainers from the classic children's television show "Sesame Street."

This photograph was taken by Matthew D'Agostino for the White House Historical Association on April 6, 2015, during the official White House Easter Egg Roll. Here, First Lady Michelle Obama leads Sunny, one of the first family's Portuguese Water Dogs, down the steps of the South Portico. President Barack Obama walks a short distance behind with Bo, the first family's other dog, and the official White House Easter Bunny. The theme of the official White House Easter Egg Roll in 2015 was #GimmeFive, which commemorated the fifth anniversary of the first lady's "Let's Move!" campaign by challenging the public to incorporate five new healthy habits into their daily routine, and share their positive lifestyle choices on social media. The event featured sports and fitness zones, cooking demonstrations, storytelling, appearances by costumed characters, musical performances, and classic seasonal activities such as an egg hunt and egg roll race. Performers at the event included rapper Diggy, girl group Fifth Harmony, pop duo MKTO, the cast of the Broadway musical "Newsies," “So You Think You Can Dance" all-star contestants, and entertainers from the classic children's television show "Sesame Street."

This photograph was taken by Matthew D'Agostino for the White House Historical Association on April 6, 2015, during the official White House Easter Egg Roll. Here, First Lady Michelle Obama leads Sunny, one of the first family's Portuguese Water Dogs, down the steps of the South Portico. President Barack Obama walks a short distance behind with Bo, the first family's other dog, and the official White House Easter Bunny. The theme of the official White House Easter Egg Roll in 2015 was #GimmeFive, which commemorated the fifth anniversary of the first lady's "Let's Move!" campaign by challenging the public to incorporate five new healthy habits into their daily routine, and share their positive lifestyle choices on social media. The event featured sports and fitness zones, cooking demonstrations, storytelling, appearances by costumed characters, musical performances, and classic seasonal activities such as an egg hunt and egg roll race. Performers at the event included rapper Diggy, girl group Fifth Harmony, pop duo MKTO, the cast of the Broadway musical "Newsies," “So You Think You Can Dance" all-star contestants, and entertainers from the classic children's television show "Sesame Street."

This photograph was taken by Matthew D'Agostino for the White House Historical Association on April 6, 2015, during the official White House Easter Egg Roll. Here, First Lady Michelle Obama leads Sunny, one of the first family's Portuguese Water Dogs, down the steps of the South Portico. President Barack Obama walks a short distance behind with Bo, the first family's other dog, and the official White House Easter Bunny. The theme of the official White House Easter Egg Roll in 2015 was #GimmeFive, which commemorated the fifth anniversary of the first lady's "Let's Move!" campaign by challenging the public to incorporate five new healthy habits into their daily routine, and share their positive lifestyle choices on social media. The event featured sports and fitness zones, cooking demonstrations, storytelling, appearances by costumed characters, musical performances, and classic seasonal activities such as an egg hunt and egg roll race. Performers at the event included rapper Diggy, girl group Fifth Harmony, pop duo MKTO, the cast of the Broadway musical "Newsies," “So You Think You Can Dance" all-star contestants, and entertainers from the classic children's television show "Sesame Street."

This photograph was taken by Matthew D'Agostino for the White House Historical Association on April 6, 2015, during the official White House Easter Egg Roll. Here, First Lady Michelle Obama leads Sunny, one of the first family's Portuguese Water Dogs, down the steps of the South Portico. President Barack Obama walks a short distance behind with Bo, the first family's other dog, and the official White House Easter Bunny. The theme of the official White House Easter Egg Roll in 2015 was #GimmeFive, which commemorated the fifth anniversary of the first lady's "Let's Move!" campaign by challenging the public to incorporate five new healthy habits into their daily routine, and share their positive lifestyle choices on social media. The event featured sports and fitness zones, cooking demonstrations, storytelling, appearances by costumed characters, musical performances, and classic seasonal activities such as an egg hunt and egg roll race. Performers at the event included rapper Diggy, girl group Fifth Harmony, pop duo MKTO, the cast of the Broadway musical "Newsies," “So You Think You Can Dance" all-star contestants, and entertainers from the classic children's television show "Sesame Street."

This photograph was taken by Matthew D'Agostino on April 6, 2015, during the official White House Easter Egg Roll. Here, First Lady Michelle Obama walks down the steps of the South Portico President Barack Obama walks a short distance behind with Sunny and Bo, the first family's Portuguese Water Dogs, and the official White House Easter Bunny. The theme of the official White House Easter Egg Roll in 2015 was #GimmeFive, which commemorated the fifth anniversary of the first lady's "Let's Move!" campaign by challenging the public to incorporate five new healthy habits into their daily routine, and share their positive lifestyle choices on social media. The event featured sports and fitness zones, cooking demonstrations, storytelling, appearances by costumed characters, musical performances, and classic seasonal activities such as an egg hunt and egg roll race. Performers at the event included rapper Diggy, girl group Fifth Harmony, pop duo MKTO, the cast of the Broadway musical "Newsies," “So You Think You Can Dance" all-star contestants, and entertainers from the classic children's television show "Sesame Street."

This photograph was taken by Matthew D'Agostino for the White House Historical Association on April 6, 2015, during the official White House Easter Egg Roll. Here, First Lady Michelle Obama leads Sunny, one of the first family's Portuguese Water Dogs, down the steps of the South Portico. President Barack Obama walks a short distance behind with Bo, the first family's other dog, and the official White House Easter Bunny. The theme of the official White House Easter Egg Roll in 2015 was #GimmeFive, which commemorated the fifth anniversary of the first lady's "Let's Move!" campaign by challenging the public to incorporate five new healthy habits into their daily routine, and share their positive lifestyle choices on social media. The event featured sports and fitness zones, cooking demonstrations, storytelling, appearances by costumed characters, musical performances, and classic seasonal activities such as an egg hunt and egg roll race. Performers at the event included rapper Diggy, girl group Fifth Harmony, pop duo MKTO, the cast of the Broadway musical "Newsies," “So You Think You Can Dance" all-star contestants, and entertainers from the classic children's television show "Sesame Street."

In this photograph, President Lyndon B. Johnson sits on a fence at his Texas ranch, holding his beloved dog, Yuki. Yuki, a mixed breed stray, was discovered by President Johnson's daughter Luci Baines Johnson at a Texas gas station on Thanksgiving Day 1966. This photograph is part of a collection belonging to former White House Executive Chef Henry Haller. Haller served as executive chef at the White House from 1966-1987.

This photographic portrait of President Gerald R. Ford and his family was taken in the East Sitting Hall. The children of President Ford and First Lady Betty Ford stand behind their parents. From left: Susan Ford, Steve Ford, Jack Ford, Mike Ford, and Mike's wife, Gayle Ann Ford. President and Mrs. Ford's loyal Golden Retriever, Liberty, sits in front of the group. This photograph is part of a collection belonging to former White House Executive Chef Henry Haller. Henry Haller served five first families and their distinguished guests as executive chef at the White House from 1966-1987.

This holiday photograph of Pasha, a Yorkshire Terrier belonging to President Richard M. Nixon, was taken by Joseph J. Scherschel on December 19, 1969 in the White House Library. Behind her sits another Nixon family dog, Irish Setter King Timahoe, decked in green ribbons. Both lived at the White House with the Nixon family. King Timahoe belonged to President Nixon, while Pasha was daughter Tricia Nixon's dog.

This photograph, taken by Joseph J. Scherschel on December 19, 1969, shows Traphes Bryant in the White House Library with Pasha, a Yorkshire Terrier belonging to Tricia Nixon, Vicki, a French Poodle owned by Julie Nixon Eisenhower, and King Timahoe, President Richard M. Nixon's Irish Setter. Bryant was an electrician with the General Services Administration from 1948 to 1972 and served as the unofficial presidential dog keeper for several first families beginning with President John F. Kennedy and First Lady Jacqueline Kennedy in 1961.

This photograph, taken by Joseph J. Scherschel on December 19, 1969, shows Traphes Bryant in the White House Library with Pasha, a Yorkshire Terrier belonging to Tricia Nixon, Vicki, a French Poodle owned by Julie Nixon Eisenhower, and King Timahoe, President Richard M. Nixon's Irish Setter. Bryant was an electrician with the General Services Administration from 1948 to 1972 and served as the unofficial presidential dog keeper for several first families beginning with President John F. Kennedy and First Lady Jacqueline Kennedy in 1961.

This holiday photograph of the Nixon family dogs was taken by Joseph J. Scherschel on December 19, 1969 in the White House Library. Vicki, a French Poodle, faces the camera, while Yorkshire Terrier Pasha and an Irish Setter named King Timahoe stand behind. All three dogs lived at the White House with President Richard M. Nixon and his family. King Timahoe belonged to President Nixon, while Vicki was the pet of daughter Julie Nixon Eisenhower, and Pasha was daughter Tricia Nixon's dog.

This holiday photograph of the Nixon family dogs was taken by Joseph J. Scherschel on December 19, 1969 in the White House Library. Pasha, a Yorkshire Terrier, sniffs the carpet in front of the camera. Vicki, a French Poodle, walks into the frame from the right, while King Timahoe, an Irish Setter, sits a slight distance away from the camera wearing green Christmas ribbons. All three dogs lived at the White House with President Richard M. Nixon and his family. King Timahoe belonged to President Nixon, while Vicki was the pet of daughter Julie Nixon Eisenhower, and Pasha was daughter Tricia Nixon's dog.

This holiday photograph of King Timahoe, an Irish Setter belonging to President Richard M. Nixon, was taken by Joseph J. Scherschel on December 19, 1969 in the White House Library. Decked in green ribbons for the holidays, King Timahoe gnaws on a bone. The Library is located on the Ground Floor of the Executive Mansion.

This photograph, taken by Joseph J. Scherschel on December 19, 1969, shows Traphes Bryant in the White House Library with Pasha, a Yorkshire Terrier belonging to Tricia Nixon, Vicki, a French Poodle owned by Julie Nixon Eisenhower, and King Timahoe, President Richard M. Nixon's Irish Setter. Bryant was an electrician with the General Services Administration from 1948 to 1972 and served as the unofficial presidential dog keeper for several first families beginning with President John F. Kennedy and First Lady Jacqueline Kennedy in 1961.

This holiday photograph of the Nixon family dogs was taken by Joseph J. Scherschel on December 19, 1969 in the White House Library. The festive dogs, listed from the front, are Vicki, a French Poodle, Pasha, a Yorkshire Terrier, and an Irish Setter named King Timahoe. All three dogs lived at the White House with President Richard M. Nixon and his family. King Timahoe belonged to President Nixon, while Vicki was the pet of daughter Julie Nixon Eisenhower, and Pasha was daughter Tricia Nixon's dog.