The Constitution of the State of Alaska was ratified on April 4, 1956 and took effect with Alaska's admission to the United States as a U.S. state on January 3, 1959.
The UA gymnasium/library where the constitution was signed on February 6, 1956, currently known as Signers' Hall.
Rivers, at bottom left, celebrating Alaska becoming a state on January 3, 1959. Behind Rivers is Bob Atwood. To his left are Fred Seaton, Ernest Gruening, Bob Bartlett, Mike Stepovich and Waino Hendrickson.