Home » Image » Beau Cassidy with his mother Sue Shifrin Cassidy Beau Cassidy with his mother Sue Shifrin Cassidy Updated : Dec 8, 2020, First Published Nov 23, 2017 Mandy Price Image Sue Shifrin Cassidy is the mother of David Cassidy’s only son, Beau Cassidy. Sue is David’s third wife, with whom he was married from 1991 to 2014. Sue is a former songwriter and recording artist. Post navigation Beau Cassidy flaunting his outfit which matches the trash can beside himWhat is Paul Teutul Sr. doing now? Is he reuniting with his estranged son?