This photograph of preserved roots from a sycamore tree was taken in 1950. The roots were spared from a newly dug utility ditch. The White House Grounds are an arboretum, and the trees are exceptionally well cared for. These roots can be used as grafts to grow a new, identical sycamore tree.

This photograph taken by Abbie Rowe of the National Park Service shows construction buildings on the White House South Grounds.

This photograph was taken by Frederick Law Olmsted, Jr., and shows First Lady Ellen Wilson's rose garden as it appeared in 1935.

This photograph taken by Abbie Rowe of the National Park Service shows a south view of the White House during the Truman renovation.