By the early 1900s, a large concentration of European immigrants had settled. The new immigrants, now displaced by the earthquake and fire, had the burden of starting a new home and the strains of entering a new culture. Dr. W.E. Parker, Jr., Pastor of Olivet Presbyterian Church at 19th and Missouri Street took action by opening his home and began offering English classes. Initially the classes were held for men and later offered for women and youth. In 1918, the growing needs of the neighborhood warranted the incorporation of the Neighborhood House under the California Synodical Society of Home Missions, an organization of Presbyterian Church women. In 1919, renowned architect Julia Morgan was commissioned to design a permanent neighborhood house, now at 953 De Haro Street. On June 11, 1922, the Potrero Hill Neighborhood House, fondly nick-named "the NABE", was completed.