Prospective members had to be white, in the tenth grade or above and undergo a review process that included an interview with owner George Stankewitz before receiving a membership card and a key.

The first African-American to receive a membership card and key was LaMont Weaver after winning the state championship with a half court shot with only seconds left for Beloit Memorial.

The "club" status of the Pop House was challenged in August 1965 when charges of racial bias resulted in a discrimination suit after five African-American citizens were denied service at the lunch counter.

[6] The case went to trial in November of that year and a jury cleared Mr. Stankewitz of bias charges, finding that the Pop House operated as a private club and could select its own membership.

[8] With a subsequent decline in business, Stankewitz announced his retirement and closed the Club Pop House in April 1973 after 27 years of continuous operation.