Locating a date source
How can a person locate the source of a marriage date on FamilySearch when the source is shown as "FamilySearch" ?
Obviously the date came from someone and has migrated at some point in time but it couldn't have been pulled out of the air.
The data is : Thomas Johnson (KCYH-1DQ) married E Mulligan (KH8S-FZV) 25 May 1853 San Francisco, California USA. SS 11 Oct 1997 J.River
No source, no children no personal data. Most likely an extraction project but again what is the source?