My dad was a LT JG, detonating mines on Omaha beach so troops could land. After he and his team cleared their stretch of beach, he went into the water and hauled out men who were foundering in the surf.
Sounds like an awesome guy. I once met a guy who was UDT on D-Day. He and his team swam in the night before and set some charges in the surf to destroy some of the iron barriers, then swam back to the raft.
He got shot while on a landing craft later in the day and never landed on the beach.
Pure guts. All of them. Every last one.