Mezue ahịrịokwu na-esonụ: N'agbata afọ 1913 na 1926, ezinụlọ Williamson biri na Berkeley nakwa gburugburu East Bay. Ka ọ na-erule afọ 1914, ha nwere ụlọ nke abụọ na Carmel, California na n'otu afọ ahụ akwụkwọ akụkọ The New York Times kpọrọ Williamson otu n'ime ndị na-ese ihe ole na ole nke Carmel. E gosipụtara ọrụ mbipụta ya na 1915
Panama-Pacific International Exhibition (PPIE) na ngalaba United States, nke San Francisco Art Association kwadoro.