Robert L. Mullen, 91, of Jacksonville Illinois, died Wednesday, April 9, 2025, at his home.

He was born in Springfield on May 14, 1933, the son of Chester and Katherine (Hoffman) Mullen, both deceased. He married Beverly Strickler on February 16, 1957, in Jacksonville and she preceded him in death on January 10, 2018.

He is survived by four sons, Michael (Sue Ann) Mullen of Jacksonville, Tom (Pat) Mullen of Peoria, Arizona, Jerry (Ann) Mullen, of St. Louis, Missouri, and Timm Mullen (Ivette Marsden) of Tucson, Arizona. Also surviving are ten grandchildren, Alicia Gatti, Kyle Mullen, Dale Taylor, Tasha Vila, Ashleigh Uraine, Brandon Mullen, Tara Franz, Jacob Mullen, Brenna Wehrman, and Tyler Mullen; ten great-grandchildren; and two great-great-grandchildren.

Mr. Mullen began his education at St. Aloysius Catholic School in Springfield, attending through fifth grade. His family then relocated to Jacksonville, where he completed his elementary education at Our Saviour Grade School before attending Routt Catholic High School. Following his time at Routt, Mr. Mullen proudly served in the United States Navy. After his military service, he built a career through various positions that eventually led him to educational field sales with Hertzberg New Method, where he worked for 17 years. Mr. Mullen concluded his professional life at the Illinois School for the Deaf, where he served until his retirement.

He was a devoted member of the Church of Our Saviour. In his retirement years, Robert cherished time spent traveling, golfing, watching sports, and meeting with friends over coffee. Above all, he had a special love for his children and grandchildren, finding his greatest joy in the time spent with family.

A funeral service will be held 11 a.m. Friday, May 2, 2025, at the Buchanan & Cody Funeral Home in Jacksonville, with burial at Calvary Cemetery. A prayer service will be held 3:30 p.m. Thursday at the funeral home, followed by the family meeting friends until 6 p.m. Memorials are suggested to St. Jude Children's Research Hospital. Condolences may be left at buchanancody.com.