You look a lot like the maternal grandfather, don't you? Those bathing suits are absolutely fabulous.
I don't have anything like these--my paternals were in an UGLY divorce in the mid-1940s, that left my grandmother alone to raise three kids under ten--so pics of him are seldom seen. I looked up his yearbook pictures at Duke (I knew he'd played football there in the 1930s)--so I know what he looked like, but ... My maternals divorced in the 1940s or early 1950s too. I doubt there are any pics of them together--my mother was their only kid, she'd have them if they existed.
Enjoy your treasures! Do you store them or display them somehow?