Richard Mosimann, age 89 passed away on Friday, November 14, 2025.  He was born on February 1, 1936 in Rochelle, IL, the son of Walter and Mildred (Justis) Mosimann. Richard served in the United States Army.

He is preceded in death by his parents, two sisters: Velda Mosimann and Delores Wellman; niece, Susan C. Leffler, nephew, David M. Wellman, and two nephews-in-law: G. Timothy Stiens, and Franklin Leffler.

Richard is survived by his two nieces, Diane Stiens and Jan Wellman, seven great niece and nephews: Jennifer (D.) Schallert, Jamie (Mike) Taylor, Caryn (Coman) Streid, Ashley (Dennis) Wellman-Morris, Kevin (Rose) Stiens, Damian (Greer) Stiens, Charles Stiens, and seven great great-nieces and nephews: Oliver, Wilhelm, Garren, Aryanna, Logan, Raven, and Andreas.

Visitation will be from 10:00 A.M.- 11:00 A.M. on Friday, November 21, 2025 at the Unger Horner Funeral Home, 400 N 6th St., Rochelle.  Funeral Service will follow at 11:00 A.M. on Friday.  Burial at Trinity Memory Gardens in Rochelle. Please visit www.ungerhorner.com to sign the online guest book.