From Zappa Wiki Jawaka
When FZ moved from Cucamonga into a little apartment at 1819 Bellevue Avenue, in the Echo Park section of Los Angeles, he got a job at Wallich's Music City, a record store in downtown L.A. where he worked as a salesman in the singles department. There he visited a place called The World Church, together with Welton Featherstone. The World Church, which happened to be right around the corner from where he lived, was run by O.L. and Velma Jaggers, a husband-and-wife evangelical team.