John Keenan & Mary HOLDEN Keenan

I am looking for information regarding John Keenan (born 1857, perhaps in Ma. and died 1927 in San Francisco) and his wife Mary HOLDEN Keenan, born in St. Louis 1862 and died Jan. 1926 in San Francisco. One of their children was my grandmother, MAY V. born 1885 in San Francisco and died 1936 in San Francisco. They lived at 534 Utah St. in San Francisco.