CHESTER — The liquid dairy industry was born in 1841 when Thaddeus Selleck, Erie Station agent at Chester, talked Chester farmer Philo Gregory into shipping 240 quarts of fresh milk to New York City on the Erie Rail Road. Orange County once had over 2,000 dairies, and thus has a rich history in this field. On Sunday, March 5 at 2 p.m., The Chester Historical Society will present historian Alex Prizgintas of Monroe, who will discuss this history of dairies in Orange County through the milk bottles of these various dairies. More than 150 bottles from the collection of Alex and other fellow collectors will be on display covering all areas of Orange County.The program will be held at the Chester Senior Center, below the Chester Library, 1784 Kings Highway, next to the town hall.Refreshments will be served. For more information, call 845-469-4674.