Beginning with painter Gilbert Stuart's portrait of George Washington, it has been tradition for the president of the United States to have an official portrait taken during their time in office, most commonly an oil painting. This tradition has continued to modern times, although since the adoption of photography as a widely used and reliable technology, the official portrait may also be a photograph.

John Christen Johansen was a Danish-American portraitist. His work was part mof the art competitions at the 1928 Summer Olympics and the 1932 Summer Olympics.