https://phys.org/news/2018-11-aviation-memorabilia-glenn-armstrong-auction.html

"When we were young, as far back as I can remember, we would play naval aviators on the couch, and either my brother or I would wear the gold Glenn Navy helmet and one of us would wear a helmet that belonged to my father," Carpenter said.

That's Glenn, as in John Glenn, the first American to orbit earth, and their father, Scott Carpenter. Both men were among the Mercury Seven, the group of astronauts that piloted America's first manned spaceflights in the 1960s.