Principal, Gary G. Sainsbury, Architect, CA, 1962-1968; Partner, Earl and Brock, Architects, Los Angeles, CA, 1968-1969; Principal, Gary G. Sainsbury and Associates, Palos Verdes Estates, CA, 1969-?;

Sainsbury joined the Southern California Chapter of the American Institute of Architects in 1969.

Coursework, El Camino College, CA, 1957-1960; coursework, University of Southern California, Los Angeles, CA, 1961-1962; coursework, University of California, Los Angeles, 1962-1963;