He was subpoenaed by HUAC after John Garfield mentioned during his testimony that Kaplan was a friend of his.
Sol LeWitt | Jonathan Kaplan | Tonic sol-fa | Sol Campbell | Gabe Kaplan | Club Sol de América | Sonoma County Sol | Sol Plaatje | Sol Liptzin | Rayos de sol | Puerta del Sol | Gastr del Sol | Betty Kaplan | Thomas Kaplan | Stephanie Kaplan | Sol Linowitz | Sol Lesser | Sol Hurok | Sol | Scott Kaplan | Robert S. Kaplan | Philip J. Kaplan | Marty Kaplan | Gastr Del Sol | Del Sol Press | Costa del Sol | Air-Sol Moyenne Portée | Wendy Kaplan | Sol Kerzner | Sol Katz |