BRIX, MAURICE. Philadelphia Silvermiths--GERSTELL. Silversmiths of Lancaster, Pennsylvania--FALES, MARTHA G. Joseph Richardson and Family: Philadelphia Silversmiths--PLEASANTS AND SILL. Maryland Silversmiths--GOLDSBOROUGH, J.F. Maryland Silver, Baltimore Museum of Art, 1975--HINDES. Delaware Silversmiths, Historical Society of Delaware, 1967--HARRINGTON. Silversmiths of Delaware, 1939--together with various pamphlets