- [S1] Find A Grave http://www.findagrave.com
- [S2] 1940 census.
- [S3] 1930 census.
- [S11] California Death Index on FamilySearch.
- [S12] Personal Knowledge of Richard Castellano.
- [S13] California County Marriages 1850-1952 on FamilySearch https://www.familysearch.org/ark:/61903/3:1:3QS7-893H-27V2?owc=waypoints&cc=1804002
- [S14] Social Security Death Index.