[4] The store expanded to include the Miss Vincent's Tea Room and was remodeled in 1935 and in 1951.

[6][7] In 1956, a suburban Buffalo location opened at Thruway Plaza in Cheektowaga, New York.

In 1958, Oppenheim Collins opened a location in the new Harundale Mall in Glen Burnie, Maryland.

In 1944, Local 1250 of the Retail, Wholesale and Department Store Union, CIO won a new contract with Oppenheim Collins that included a closed shop, a $2.00 pay increase, and elimination of "free" overtime work during peak sales and inventory periods.

[8] In 1948, Oppenheim Collins employees, represented by Local 1250 of the Retail, Wholesale and Department Store Union, CIO, struck against the company.