Trying to find info on great grandfather

Steven Susich
Birth 24 Dec 1884 in Mrkopalj, Austria
Death 9 Nov 1947 in San Joaquin
Mother's Maiden Name: Ferkovich

married to:

Pauline Anna Knuljaec
Birth 29 Jun 1887 in Croatia
Death Dec 1965 in Calaveras, California, USA

Had five children starting with Rudolph J(oseph?) Susich and John Susich and three girls Frances, Olga and Anna