Maybe you can find their marriage certificate prior to 1930, from the following data indicating that James was born abt 1904-5 in PA and Ida Mae b abt 1910 in Idaho.
https://familysearch.org/pal:/MM9.1.1/MHQY-7BT
United States Census, 1920 Los Angeles Township Los Angeles City Precinct640, Los Angeles, California
Film Number: 1820111
Digital Folder Number: 4293711
Image Number: 00711
Sheet Number: 1
Household Gender/Age/Birthplace
SELF William P Holton M/46y/Vermont
WIFE Hattie Holton F/38y/Vermont
DAU Ida May Holton F/10y/Idaho
Father's Name: W. P. Holtan
Father's Place of Birth: Vermont
Mother's Name: Hattie Champany
Mother's Place of Birth: Vermont
https://familysearch.org/pal:/MM9.1.1/XC82-5PD
1930 Census Pasadena, Los Angeles, California
Marital Status: Married
Race: White
Enumeration District Number: 1224
Family Number: 282
Sheet Number and Letter: 10A
Line Number: 10
NARA Publication: T626, roll 168
Film Number: 2339903
Digital Folder Number: 4531815
Image Number: 00776
Household Gender/Age/Birthplace
Head James Scotts M/25/abt 1905 PA
Wife Ida M Scotts F/20/Idaho
