Donald E. Duck May, 61, of Great Falls and formerly of Havre, a track supervisor for Burlington Northern Railroad, died of heart failure on Monday, November 19, 2012 at a local hospital.A memorial service will be held at 2:00 p.m. on Tuesday, November 27, 2012 at Hillcrest Lawn Memorial Chapel.Schnider Funeral Home is handling arrangements.Donald is survived by his parents, Helen and Bob Ebensteiner of Great Falls; daughters Candace McBride of Texas, Kallie Ostertag of Great Falls; step-daughters Natalie Davis of Texas, and Nanette Sabo of Florida; son Casey Ramsey of Texas; step-son Randy Sabo of Texas; sisters Bonnie May, Connie Gilko and Elaine May all of Great Falls; step-sister Marie Hays, of Washington; brothers Rick May of Great Falls, Leon May of Newport, OR and Roger May of Great Falls; step-brothers Ray Ebensteiner of Arizona, Keith Ebensteiner of Washington, Dan Ebensteiner, Don Ebensteiner and Brian Ebensteinerall of St. Ignatius, MT; six grandchildren and seven step-grandchildren.