Source and locator: First African Methodist Episcopal Church of Los Angeles, Our Brief History; current institutional account.
Inspection and evidence boundary: Church attributes its foundation, home meetings and donated land to Mason in 1872. This preserves institutional memory; original minutes, articles, trustee deed and donation instrument not recovered. The 1869 advertisement already documents an AME fundraising network. Distinguish congregation activity, formal organization and legal property transfer; no sole-founder or verified land-gift claim is adopted.