[3][4] His father, Charles M., was of Belgium ancestry and was born in Rotterdam; he was also an early architect in the city of San Francisco.
[1][6] The Rousseau family home was located at 1903 Webster Street in San Francisco starting roughly in 1901.
[3] In 1912, Oliver Rousseau married Irene Martha (née Caubu),[7][8] they had one child; the local newspapers published the couple's separation in 1916.
[2][15] Oliver worked as the architect designing all of the buildings, while Arthur focused on raising money.
[2] Oliver separated from his family business at that point and went on to work as a architect on a development in the East Bay, primarily tract homes and apartment buildings.