This photograph of White House doorkeeper Preston Bruce and his family was taken by Robert L. Knudsen on December 27, 1961 during the John F. Kennedy administration. The Bruce family is photographed in front of the Blue Room Christmas tree while attending a staff holiday reception. Bruce worked as the doorkeeper from 1953 to 1975.

This photograph of White House painter Cletus L. Clark was taken by Tina Hager on July 15, 2004 during the George W. Bush administration. Cletus was the White House painter foreman from 1974 to 2009. He is photographed on the Second Floor of the White House residence.

This photograph of members of the White House staff getting fingerprinted was taken by Harris & Ewing on March 21, 1939. President Franklin D. Roosevelt stated during a press conference that everyone in the White House, including the president, should be fingerprinted. This photograph captures the day the initiative started. From left to right are: White House carpenter Isaac Avery, stenographer Mollie D. Somerville, E.A. Schurman, who took the fingerprints, a Secret Service agent, carpenter E.L. Lewis, clerk Muriel Lund, Sgt. Ole Jacobson, acting Capt. Herbert L. Macy of the White House Police Force, and usher Wilson Searles.

This photograph of members of the White House Kitchen staff was taken by Abbie Rowe on March 21, 1952 during the Harry S. Truman administration. The four unidentified staff members are seen in the newly renovated Kitchen, located on the Ground Floor of the White House.

This photograph of White House carpenter William R. Eckloff was taken by the National Photo Company on January 11, 1921 during the Woodrow Wilson administration. Eckloff's career at the White House spanned from circa 1877 to 1889.

This photograph of Victoria D. H. Nesbitt (also referred to as Henrietta Nesbitt) was taken by Harris & Ewing in February 1939. Nesbitt served as White House housekeeper primarily during the Franklin D. Roosevelt administration from 1933 to 1946.

This photograph of White House usher James F.W. "Skip" Allen was taken by Tina Hager on June 1, 2002 during the George W. Bush administration. Allen worked in the Secret Service and as an usher, in a White House career that spanned from 1971 to 2004. He is photographed in the State Dining Room of the White House.

This photograph of White House butler and houseman Wilson R. Jerman was taken by Tina Hager on August 5, 2004 during the George W. Bush administration. Jerman worked at the White House from 1957 to 1993 before returning again from 2003 to 2012. He is photographed here through a window to an elevator in the White House.

This photograph of White House electrician William R. Cliber was taken by Tina Hager on December 28, 2001 during the George W. Bush administration. Cliber was the White House electrical foreman from 1963 to 2004.

This drawing of members of the White House staff was published in the Dakota Farmers' Leader on July 9, 1897. The staff depicted are (clockwise from the top left): William H. Crook, who served as a doorkeeper and clerk; Thomas F. Pendel, a doorkeeper, usher, and messenger; Charles Loeffler, an usher, doorkeeper, and messenger; Oscar L. Pruden, a clerk; and William Dubois, a policeman, usher, and doorkeeper.

This photograph of White House gardener William S. Reeves was taken by the National Photo Company on January 6, 1921. Reeves worked with the White House gardens and grounds team from circa 1905 to 1945, eventually being named head gardener.

This photograph of White House chauffeur Francis H. Robinson was taken by the National Photo Company on December 27, 1919. Robinson served as a chauffeur, and later superintendent of the White House garage, from 1910 to 1940.

This portrait of Jean Pierre Sioussat was created circa 1815 by an unknown artist. Sioussat, who worked at the White House as a doorkeeper, steward, or master of ceremonies, was born in Paris, France in 1781. He was called, "French John" while working at the White House under President James Madison.

This photograph of White House Chief Usher Raymond Muir (right) and carpenter Isaac Avery (left) was taken by the National Photo Company in October 1936. Muir worked as an usher from 1930 to 1938 and was named Chief Usher in 1933. Avery was a White House carpenter from 1930 to 1965. The two are photographed with Bluefish caught in the Chesapeake Bay.

This photograph of White House Chief Usher Howell G. Crim (sitting) and usher Charles K. Claunch was taken by Harris & Ewing on April 4, 1938. This photograph was taken shortly after President Franklin D. Roosevelt named Crim to the Chief Usher role, following the departure of Raymond Muir. Crim worked at the White House circa 1930 to 1957. Claunch served as a naval aid before becoming usher, from 1929 to 1954.

This photograph Hassel Adams and Robert M. Redmond with the Kennedy family dogs was taken by Robert L. Knudsen on June 20, 1961. Adams, left, is holding Charlie, a Welsh terrier, and Redmond is holding Pushinka, a recent gift from Soviet Premier Nikita Sergeevich Khrushchev to President John F. Kennedy. Redmond worked as a gardener from 1923 to 1963 and Adams was also on the gardens and grounds team. The group is photographed in White House Press Secretary Pierre Salinger's office in the West Wing.

This photograph of Josephine Kneip and Marie Hampe with Mary Lodge Harrison and Benjamin Harrison McKee, the grandchildren of President Benjamin Harrison, was taken circa 1889 to 1893. Kneip served as housekeeper and lady's maid to First Lady Caroline Harrison, and Marie Hampe served as governess to the Harrison granchildren. The group is photographed on the South Portico of the White House.

This photograph of John F. Kennedy, Jr., son of President John F. Kennedy and First Lady Jacqueline Kennedy, and George E. Thomas was taken by Cecil Stoughton on November 27, 1962. Thomas was President Kennedy's valet from 1961 to 1963. In the photograph, Kennedy sits at a piano bench with Thomas standing beside him in the Center Hall of the White House. This was likely taken during a joint birthday party for Kennedy and his sister, Caroline.

This photograph of White House Executive Chef René Verdon and pastry chef Ferdinand Louvat was taken by Robert L. Knudsen on November 27, 1962. The chefs are photographed holding cakes for a joint birthday party for Caroline Kennedy and John F. Kennedy, Jr., the children of President John F. Kennedy and First Lady Jacqueline Kennedy. Verdon worked at the White House From 1961 to 1965 while Louvat's career spanned from 1962 to 1967.

This photograph of John F. Kennedy, Jr. on the South Lawn of the White House Grounds was taken by Cecil Stoughton on April 4, 1963. Kennedy, the son of President John F. Kennedy and First Lady Jacqueline Kennedy, was photographed at a children's party. In the background are Mrs. Kennedy, left, and White House butler Robert B. Thompson, center.

This photograph of members of the White House Kitchen staff was taken by Robert L. Knudsen on May 3, 1962. The group is photographed standing around a dessert dish featuring an assortment of cookies made for a luncheon held in honor of Federal Chancellor Alfons Gorbach of the Republic of Austria. From left to right are: assistant cook Raymond Jackson, assistant chef Julius Spessot, White House Executive Chef René Verdon, assistant cook Eserline Dewberry, pastry chef Ferdinand Louvat, and an unidentified member of the team. They are photographed the Kitchen located on the Ground Floor of the White House.

This photograph of White House butler John H. Johnson was taken by Robert L. Knudsen on November 27, 1962. Johnson, photographed in the President's Dining Room on the Second Floor of the White House, is holding a joint birthday cake for Caroline Kennedy and John F. Kennedy, Jr., the children of President John F. Kennedy and First Lady Jacqueline Kennedy.

This photograph of electrician Allan M. Thomas hanging a Christmas wreath above the North Door of the White House was taken by Harris & Ewing on December 21, 1937. Thomas worked as an electrician at the White House from 1912 to 1945.

This photograph of White House doorkeeper William H. Crook was taken by Frances Benjamin Johnston circa 1890 to 1910. Crook was a doorkeeper at the White House from 1865 to 1915. He is photographed sitting at his desk in the White House.

This photograph of Thomas F. Pendel was taken by C. M. Bell circa February 1901 to December 1903. Pendel served as an usher and doorkeeper at the White House from 1864 to 1909.