Mausoleum for the Clarkson family in Bayside Cemetery off County Road 59, south of Clarkson University, in the Village of Potsdam, St. Lawrence County, New York. Bayside Cemetery overlooks Norwood Lake on the Raquette River. The Clarksons were a prominent New York family. Thomas Streatfeild Clarkson III (1837–1894) operated the quarry that produced Potsdam Sandstone, the distinctive red stone found in many buildings throughout Potsdam and New York City, including this mausoleum. He was killed pushing a workman out of the way of a loose pump. Clarkson University is named in his honor.