Who was the youngest designer selected for the 1976 U.S. Bicentennial coins?

Dennis R. Williams was the youngest designer selected for the 1976 U.S. Bicentennial coins.

Williams designed the reverse of the Bicentennial Eisenhower dollar, depicting the Liberty Bell superimposed against the Moon. He was 21 years old when his design was selected, making him the youngest person to design a United States coin at that time.

His winning concept began as a class assignment while he was an art student. The other two winning designers were Jack L. Ahr, whose colonial drummer appeared on the quarter, and Seth G. Huntington, whose Independence Hall design appeared on the half dollar.

Mint Chief Engraver Frank Gasparro refined the three designs for production. For Williams’s dollar, the lettering was adjusted to help metal flow during striking, and Williams was asked to straighten the bottom edge of the Liberty Bell. The dollar’s obverse retained Dwight D. Eisenhower’s portrait and carried the date 1776–1976.