Alan was married 3 times, has 2 daughters
1.) E.A. Pearle Carrizales married 1966 daughter - Cindy Marie Davis Dec 20, 1968
2.) Robin Lynn Jackson divorced April 1974
3.) Sheila Ann Davis (Surbaugh) married 1977 daughter Tami Jean Davis Oct 21, 1977
as much as I know got this from some old records my mother had left.
He Hated the name Clarence and Allison, when he was a young boy went by the name C.A. later on his friends called him Dave which was just short for Davis, then after he joined the Navy went by the name Alan and that stuck for the rest of his life.
The 1960's were years of great change: Protests (Vietnam War, Free Speech, Civil Rights), assassinations (JFK, Martin Luther King Jr, Bobby Kennedy), conflict (the Cuban Missile Crisis, the Cold War, ...