Rubuta ci gaba ga wannan sakin layi - Tsakanin 1913 da 1926, Williamson ya zauna a Berkeley da kewaye da Gabashin Bay. A shekara ta 1914, suna da gida na biyu a Carmel, California kuma a wannan shekarar jaridar The New York Times ta kira Williamson daya daga cikin 'yan' yan wasan kwaikwayo na Carmel. An nuna aikinta na buga takardu a baje kolin kasa da kasa na Panama-Pacific na 1915
(PPIE) a cikin Sashin Amurka, wanda San Francisco Art Association ya tallafawa.