Father Rosson Retiring At Cooperstown Parish Final Mass, Celebration Planned This Sunday By JIM KEVLIN • Special to www.AllOTSEGO.com COOPERSTOWN – Father John Rosson, pastor of St. Mary’s “Our Lady of the Lake” Roman Catholic Church, is retiring, effective April 1, after 19 years in Cooperstown. Father Rosson said today his final mass will be at 10 a.m. this Sunday, March 31, followed by a brunch and open house. The news was announced this past Sunday at the end of…