My cousins Joe and Robert Adler wanted me to clarify that they, and their father, Benjamin Adler, also worked at Dubrow's Cafeteria for many years. Benjamin was also an owner and manager for a period of time.
We also now know that all five of Benjamin Dubrow's children managed and/or owned Dubrow's for some period of time: George Dubrow, Benjamin Adler (married to Lila Dubrow), Max Tobin (married to Minnie Dubrow), and Irving Kaplan (married to Sylvia Dubrow). According to her daughter, Joanne Dubrow, the youngest of the Dubrow children (Ruthie) "worked at the Eastern Parkway store, albeit for only one day; her father fired her when he discovered at day's end that there was more money in the cash
register than represented in the receipts, i.e., she'd overcharged
Grandchildren also worked at Dubrow's: Bonnie Kaplan Lyons, Beth Kaplan Wald, Joe Adler, Robert Adler, Irwin Dubrow, and Paul Tobin. Probably others. Paul Tobin was also a co-manager, but to the best of my knowledge he is the only grandchild to take on a management role.