In the 1920 Census, Starr Hewitt Barnum was enumerated with his father Cortez and probably his step mother Sarah, since Cortez' first wife was named Alice.
In the 1930 US Census for ED 19-1041, La Canada, Los Angeles County, California California the family of Starr H. Barnum was enumerated as follows:
Dwelling #64; Family #64
Barnum, Starr; Head; Lives in non-farm home of unknown value; M; W; 37; Married at 26; Can read and write; b. California; Father b. New York; Mother b. Connecticut; Speaks English; Janitor; School; Employed last regular work day; Military veteran
Barnum, Mary; F; W; 37; Married at 26; Can read and write; b. Connecticut; Both parents b. Connecticut; Speaks English, No occupation
Barnum, Jane; Daughter; F; W; 8; Single; Attended school within the year; b. California; Father b. California; Mother b. Connecticut; No Occupation
Barnum, Helen; Daughter; F; W; 5; Single; Did not attend school within the year; b. California; Father b. California; Mother b. Connecticut; No Occupation
Starr H. Barnum's WWI draft card says that he was born 12/26/1893 in Pasadena but his death record says 1892.