Dee ihe ndị ọzọ dị na paragraf a - N'agbata afọ 1913 na 1926, ezinụlọ Williamson biri na Berkeley nakwa n'akụkụ 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 United States Section, nke San Francisco Art Association kwadoro.