Garces married Robin Williams on April 30, 1989, following the 1988 divorce from his first wife, Valerie. When the pair were married, Garces was already pregnant with Williams' child. Garces met Williams in 1984 when she was employed as a nanny for Williams' son Zachary. Previously, Garces was a painter working as a waitress. According to his first wife, the romantic relationship between Robin and Marsha began after they separated. During their marriage, they had two children, Zelda Rae and Cody Alan, born in 1989 and 1991, respectively. In March 2008, she filed for divorce from Williams citing irreconcilable differences. Their divorce was finalized in 2010.