Celebrating 50 years of marriage are Mr, and Mrs. Joseph 'Sherer of San Mateo who were wed April 13, 1900. They are the parents of Jacob Sherer of Beach Haven, N. J. and Mrs. Chris Pedersen of San Mateo. They have 4 grandchildren and one great grandchild, Sherer is a salesman, and Mrs. Sherer 'is an amateur gardener at her Thirty-firs tavcnue home. They Lare-former residents of Trenton, N. J.