I think this is the only picture of Roscoe, Gladys, their three sons and all five of their grandchildren that was ever taken. Also included are their two daughters-in-law, two Korean foreign exchange students and their foster daughter and her husband.
Genealogy Lady 
I think the foreign exchange students were Japanese. The one kneeling is Akemi, and visited mother in New York.
My hair is a disaster. 😦
The 70s did that to people!