I found an obituary for Alpha Hollis, who died in Oakland on 17 Nov. 1918. She was wife of the late Walter Hollis, daughter of Henry T. and Aggie Carlen, sister of Sergeant Raymond Carlen, and granddaughter of Mrs. Mary Andrews. She was also survived by a son. She was a native of Oakland, age 26 (I think? hard to read), 2 months, and 17 days.
I also found an obituary for Agnes and a death notice for Raymond, which indicates that they lived in Crescent city. Raymond was described as a boxing promoter in Agnes' obituary.