sentences:  This, coupled with the need to focus on paid employment, led to the disintegration of much of the Rocket Research Group, leaving only its three founding members by late 1938.In January 1939 John and Frances Baxter, a brother and sister who had befriended Jack and Helen Parsons, took Jack to the Church of Thelema on Winona Boulevard, Hollywood, where he witnessed the performance of The Gnostic Mass.Celebrants of the church had included Hollywood actor John Carradine and gay rights activist Harry Hay.