Charles Edward Entenmann, 92, who helped expand his family’s Long Island bakery from a local delivery service to a household name, died Feb. 24 in Florida. Entenmann’s, now a supermarket staple, was opened by Charles Entenmann’s grandfather, William, in Brooklyn in 1898. William, an immigrant from Germany, would deliver his baked goods to homes in a horse-drawn wagon.

In 1900, the family moved the bakery to Bay Shore. When his father died in 1951, Charles, his mother and his two brothers started supplying their baked goods to supermarkets. Their packaging introduced see-through boxing, luring customers to their sweets. The 14-acre site in Bay Shore was sold in 1978, has changed hands several times since, and is now owned by Bimbo Bakeries USA.

Charles Entenmann gave generously to Long Island. He supported the Great South Bay WMCA and endowed Southside Hospital in Bay Shore, establishing the Entenmann Family Cardiac Center. He underwrote the development of a self-sustaining power cell at his Biosearch LLC research lab, and also started Biolife LLC, a company that produces health care products to stop bleeding.