Earlier I mentioned my grandma was in an Eastman Kodak ad in the 1940s, and Fnarf pointed out that Google Books has the whole Life collection, so I just spent two hours looking and... voila! Here's my grandma in the May 3, 1948 issue. She's the mom holding the camera.

Also in that issue: union labor violence and meat strikes and the hopes and dreams of young career girls in New York and a man dying while driving a horse...