The pension index card at Fold 3 indicates that he died 7 Dec 1913 at Elma, Ontario, Canada.
The Pension index card on Ancestry.com indicates that his widow's name was Lovina, and that she filed for a pension 3 years after he died. Ohio marriage records show a Lovina Winkelman married a Charles Pezel in Summit county, Ohio in April of 1880.
Pension application # is 596549. Pension certification # is 451398. The widow application # is 1081693. I would write for the pension records, if I were you.