The Oneonta History Center's current exhibition is Oneonta Photographers 1850-1930. During PTH weekend, visitors of all ages will have the opportunity to pose for photos in front of a 19th century-style backdrop. Bring one's own costume (1850 to 1930)and/or try on hats, etc., here. As part of ongoing children's programming, there will be local historical photos which children can examine to learn about the past, under guidance. On Monday at 2 PM, Kevin Gray will speak on the challenges that early photographers faced. Gray is a fine arts photographer and Manager of Arts Education at the Fenimore Art Museum in Cooperstown.