Lipa Feingold moved to Denver in 1908 with his family and they resided in the city's west Colfax East European Jewish community. Feingold worked as a jeweler, but he composed musical compositions and lyrics in English and Yiddish in his spare time. In 1925 he left Denver for New York City to pursue his musical career in Tin Pan Alley. The collection consists of a number of Feingold's sheet music, bulletins and jewelry patents.

Samuel Ralph Freeman was a lawyer originally from New York. He was assistant to the Colorado Attorney General from 1955-1958, Vice President of the Denver Rio Grande Railroad and later as the assistant to the chancellor at the University of Denver. He was also president of B’nai B’rith. Collection contains memoirs written by Samuel Freeman related Samuel Ralph from 1929 through 2003.