Solomon Kaplan graduated from the University of Pennsylvania in 1926 with his B. S. in Architecture. He actually appears in the Philadelphia city directories from 1919 to 1960 as an architect, with at least two associations with other architects noted. He associated with
David D. Weitz informally for several years and with
J. Joshua Fish from 1947 to 1954. Projects noted for him in the
Philadelphia Real Estate Record and Builders Guide indicate a general practice, with a number of alteration and addition commissions.
In addition to his office in Philadelphia, Kaplan maintained an architectural office in Denver, CO, for some 50 years.