Information about George Barnum appears in a General Affidavit written and signed by his aunt, Maude Barnum McMaster, as follows:
State of California, County of Los Angeles. Maude Barnum McMaster, residing at 4333 Woodman, Van Nuys, Los Angeles County, California, being first duly sworn, deposes and says: that she is the sister of Daniel G. Barnum, that she is the Aunt and Guardian of George Barnum, also that the said George Barnum was born to David G. Barnum and MarĂa Barnum at Mexico City, Mexico, on Jan. 8, 1921. Signed //Maude Barnum McMaster//
In the 1940 US Census for Los Angeles, Los Angeles County, California, George was enumerated together with his aunt, Maude McMaster, as follows:
Name: George Barnum, Age: 19, Estimated birth year: abt 1921, Gender: Male, Race: White, Birthplace: Mexico, Marital Status: Single, Relation to Head of House: Nephew, Home in 1940: Los Angeles, Los Angeles, California, Street: Woodman Avenue, House Number: 4333, Residence in 1935: San Antonio, Texas, Resident on farm in 1935: No, Citizenship: American Citizen Born Abroad, Sheet Number: 4A, Attended School or College: Yes, Highest Grade Completed: High School, 3rd year, Weeks Worked in 1939: 26, Income: 780, Income Other Sources: No, Household Members: Maude B Mc Master, 53; George Barnum, 19; Charles Petty 67; Clifford Ketchum, 22; Thomas Murray, 32.