Leon Eldon Onken 87, was called to his heavenly home on April 4, 2014. The eldest son of Herman George Onken and Malinda Koebcke, he was born near Francesville, IN., April 16, 1926. Upon graduation from Francesville High School, he moved to Indianapolis and was employed by General Motors Allison. He continued his education through the work/study coop and graduated from General Motors (GM) Institute in 1949 with a degree in mechanical engineering. He married Doris Anne McNary in 1953 and they had 3 children. They moved to Brownsburg in 1956. They became active members of the Calvary United Methodist Church where Leon served in various capacities. He was also involved in Boy Scouts leadership and Little League Baseball. He retired from GM in 1986. Leon served on the Brownsburg School Board from 1964 - 1976. He also served on the Brownsburg Library Board during the planning and construction of Brownsburg's present day Library facilities. Leon was on the committee for planning the Northfield bypass. In his later years, he volunteered at Hendricks Regional Health and delivered Meals-On-Wheels. He leaves behind his wife, sons Todd (Andrea), Lance (Carol), daughter Melinda (Rich) Diesslin, and eight grandchildren: Logan Onken; Grady, Sally, Neil Diesslin; and Sarah, Seth, Luke, Rachel Onken. He is also survived by sisters: Nelda Garrett, Tootie Cummins, Ruthie Vollmer, and brothers: Buddy Onken; Freddie, Bob Vollmer. Visitation will be 4-8pm Tues. April 8 at Matthews Mortuary , Brownsburg. Funeral services are Wed. April 9 at 11am with visitation one hour before at the Calvary United Methodist Church.