John S. McCain and his son John S. McCain Jr. in September 1945. Admiral McCain died a few days after this photo was taken.
... that John S. McCain Sr. and John S. McCain Jr.(pictured) were the first father and son pair to achieve the rank of four-star admiral? Source: "McCain Jr. and his father were the first father-son duo to attain the rank of four-star admiral." Stars and Stripes[1]