sentences:  After the 1906 San Francisco earthquake, Pflueger continued his grade-school education, graduating at age 13 in a mass ceremony held in Golden Gate Park for all the city's devastated public schools.By 1907, Pflueger was working as a draftsman and soon joined the architectural firm Miller and Colmesnil, under the guidance of James Rupert Miller, senior partner.Young Pflueger sketched ornamental details based on ideas from his bosses, and attended Mission High Evening School to further his education.