My greatgrandfather's brother, Max Karp, moved from Texas to California sometime between 1910 and 1920. He brought his wife Marine and 3 children (Ethel, Sylvan and Gertrude). In 1920 the family lived in Santa Ana, Orange County. In 1930, Sylvan and Ethel were still at home. Eventually Ethel married someone named Schneider. I don't know what became of Sylvan.
Gertrude Dena Karp(1904 - 1950) married a Rosen. Does anyone have any information?