In 1900 the Hunt family is living in Orange, orange, CA.
Lovejoy Hunt, b. OH Dec 1837, marr 34 yrs, farmer.
Lida, wife, b. OH Jan 1844, had given birth to sixchildren but only four alive in 1900.
David, b. IL June 1876, single, day laborer.
George, b. IL Aug 1879, single, farm laborer.
In 1910 David's Hunt family was living in Orange Ward 2, Orange Co.
David G. Hunt, b. IL, 33, marr 4 yrs, engineer city water works.
Misa O., wife, b. MI, 25.
David C., b. CA, 3.
Ivan G., b. CA, 1 6/12ths.
I found the 1920 Census that you mentioned. Harold is listed as Eliza's grandson but he could have been David's nephew.
I didn't find harold in a 1910 Census.
In 1930 David and family were living in Temescal, Riverside Co., CA.
David G. Hunt, b. IL, 53, farm laborer.
Ruth S., wife, b. IL, says 34 but she couldn't be if she was 33 in 1920.
Delbert J., b. CA, 8.
Raymond V., b. CA, 7.
Esther L., b. CA, 4.
Donald R., b. CA, 5/12ths.