Thomas Muza of Hightstown pleaded guilty to second-degree theft by unlawful taking from Princeton's Triangle Club, whose members have included F. Scott Fitzgerald and Brooke Shields.
Under terms of a plea agreement, prosecutors will recommend Muza be sentenced in September to three years in prison. He also must make restitution.
Authorities say the 56-year-old Muza wrote checks to himself from January 2008 to February 2013, mainly to pay his living expenses.
Muza had been the group's part-time accountant for 20 years.
Princeton's Triangle Club was founded in 1891. Other famous members include the actors Jimmy Stewart and Jose Ferrer.