ABOUT LARSON & HARTUNG INSURANCE ASSOCIATES, INC. After serving in World War II for the Royal Canadian Air Force, Alvin Larson, moved to California and began teaching at Hogan Jr. High School in Vallejo. Alvin Larson later entered the local business community to form Hewitt, Larson & Swett Insurance in 1957, located in Central Vallejo. Alvin's wife, Dorothy Larson shortly joined the business and established a reputation for excellent customer service that exist today. Built on the site of the original building, you will find our contemporary brick building located at 1555 Tennessee Street in Vallejo was built and designed to complement our commitment of professionalism in our community, currently leased out to Mare Island Home Health Care