I was named after two older cousins, one on each side of the family. My two older sisters (15 and 17 years older) almost always called me by both names.   This practice has lasted long past adulthood.

My Grandmother also used both, but that was usually when she was aggravated at me for something. That happened more frequently than necessary, I suppose.

I can't recall anyone else doing it, at least not frequently enough to be remembered.