Note: He was naturalized in Azusa, California, not Arizona.
Where and when did he die? Do you have his obituary? There's a remote chance that his first wife is mentioned -- or other family members.
Did he have any children with his first wife?
Wouldn't his first marriage have been before 1946? (since his wife's name and their address are listed on the immigration records)
Was his second marriage in 1953?