Mark W. Pinkerton, 58 Mark W. Pinkerton, 58, of Keystone, passed away Monday morning, May 9, 2022, at Lutheran Hospital in Fort Wayne. He was born July 3, 1963, in Bluffton to Richard W. and Judy L. (Breedlove) Pinkerton. Mark graduated with the class of 1982 from Southern Wells High School. He was a lifelong…