SIR Websites
Sons In Retirement (SIR) is a fraternal organization of retired men. It has about 150 branches and 20,000 members in Northern California and Central California. SIR was founded in San Mateo, California in 1958 and subsequently incorporated as a non-profit public-benefit corporation. Select one of the blue buttons below to access the SIR State Website or individual SIR Branch Websites.