Rita Popper, a longtime Community Board 8 member and president of the Knickerbocker Tenant’s Association, has passed away at the age of 87. ( Photo: Community Board 8 ) Rita Popper, Longtime Upper East Side Advocate, Dead at 87 Rita Popper, the tenacious president of the Knickerbocker Tenant Association and a longtime Upper East Side advocate and... News 30 Aug 2026 | 12:17
