For several years after graduation, Younger was associated with architectural firms in Washington, such as Waggaman & Ray, and in 1922[1] he went into practice for himself.
He designed several important buildings, including the Kennedy–Warren,[1] and the Sixth Presbyterian Church, for which he received an award from the Washington Board of Trade.
Published on the property's website is the following information: "Designed by Washington architect Joseph Younger in 1930, The Kennedy–Warren is considered the most important privately owned example of Art Deco style in the nation’s capital.
The exterior of the building is remarkable for its attention to detail, from the carved limestone eagles embellishing the front entrance to the geometric aluminum spandrels flanked by a saw-tooth pattern of multicolor brick.
[4] Joseph Younger died by suicide on May 16, 1932, in his home at the Tilden Gardens cooperative apartment complex, where he shot himself in the chest, in the presence of his wife.