B. Catherine Lotzenhiser, former head of the Spokane YWCA and an avid community volunteer, died July 22 at her home in Coupeville, Wash., of pancreatic cancer. She was 85. She lived in Spokane for more than 20 years with her husband, George W. Lotzenhiser, dean emeritus of fine arts at Eastern Washington University and a retired rear admiral in the Naval Reserve, before retiring to Whidbey Island in 1986.