Kathryn may have been Rush's last wife, but as mentioned above, she wasn't his first wife. In fact, Rush was married three times before igniting his relationship with Kathryn (via Showbiz Cheat Sheet). In 1977, Rush married Roxy Maxine McNeely, a sales secretary at WHB, a Kansas City radio station (via The Seattle Times). The two began seeing each other after going on a blind date in 1976. Their marriage ended in 1980, following reports of "incompatibility" (via The Sun). 

Three years later, Rush married his second wife, Michelle Sixta, an usherette in the Kansas City Royals' Stadium Club (via The Guardian). According to The Guardian, the couple split in 1990. Then, in 1994, Rush married his third wife Marta Fitzgerald, an aerobics instructor from Jacksonville, Florida (via Palm Beach Daily News). Fitzgerald and Rush divorced in 2004. Despite the fact that Rush once said, "Marriage is about raising children. That's the purpose of the institution" (via Boston Magazine), he never had any children of his own.