<prompt> Pedzisa mutsara unotevera: Pakati pa1913 na1926, mhuri yekwaWilliamson yaigara muBerkeley nemunharaunda yeEast Bay. Pakazosvika 1914, vaive neimba yechipiri muCarmel, California uye gore rimwe chetero pepanhau reThe New York Times rakatumidza Williamson mumwe wevashoma vanoshamisa vemifananidzo veCarmel. Basa rake rokudhinda monotype rakaratidzwa pa1915  <response>: Panama-Pacific International Exhibition PPIE muUnited States Chikamu, chakatsigirwa neSan Francisco Art Association. 