They died on a training exercise Oct. 29 about 50 miles off the Southern California coast. Their AH-1W Super Cobra helicopter collided with a Coast Guard C-130 plane on a mission to rescue a missing boater.
Seven Coast Guard members who also died in the crash have been honored at a service in Sacramento.
Coast Guard Men, Woman Killed in Mid-Air Collision
A joint Marines-Coast Guard board is investigating the cause of the crash.