O'SHAUGHNESSY, M. M., Hydraulic Engineer; b. Limerick, Ireland, May 28, 1864; son of Patrick and Margaret (O'Donneil). Educ.: Queen's College, Cork, Queen's College, Galway; B.Engring., with honours. Royal Univ., Dublin, 1884; m. Mary Spotteswood, of San Francisco, Oct. 21st, 1890; came to America, 1885; asst. engr. S.P. Co., 1886-7: civ. engr., townsites and water, 1880, 1892-3; chief engr. Cal. Midwinter Internat. Expn., San Francisco, 1893-4: chief engr. Mountain Copper Co., etc., 1895-6; practised at San Francisco, 1897-8; consulting and constrn. hydraulic engr., sugar plantations, Hawaii, 1899-1906; in practice in Cal., 1907; chief engr. Southern Cal. Mountain Water Co.; consulting engineer Spreckels Sugar Co., Port Costa Water Works; city engineer of San Francisco, Sept. 1st, 1912—Republican; Roman Catholic. Member Am. Soc. C.E., Am. Pub. Health Assn. Clubs Commercial, University, Olympic, Chit Chat. Author of articles on Irrigation in Hawaii and other tech. subjects. Awarded James Laurie prize, Am. Soc. C.E., 1918. Ros.: 2732 Vallejo Street, San Francisco, U.S. America. Office: City Hall, San Francisco.