James (Jim) Edward Grennan of Fort Collins, Colorado passed away August 14, 2024, after a long illness. He was born February 21, 1950 in Concordia, Kansas to John and Maxyne (Townsdin) Grennan.
Jim grew up in Jamestown, Kansas and graduated from Jamestown High School in 1968. He later graduated from Cloud County Community College in Concordia, Kansas and then Kansas State University with a bachelor's degree in Agricultural Education. He lived in Colorado for most of his adult life. He farmed and custom cut wheat from Texas to Montana and later owned a roofing company.
In 2021, Jim authored and published a book, 'Raising Up Boys in Kansas'. He was always trying to help others. He took numerous trips to St. Bonaventure Indian Mission in New Mexico with food and clothing. He was an avid treasure hunter and always had his metal detector just in case. He loved to play billiards as well as chess. Jim was a very devout Catholic. When it became very painful to walk, he continued to faithfully attend mass even during the week. He loved his family and enjoyed his great-grandchildren immensely.
Jim is survived by his loving son Patrick (Bri) and her son Kallias of Loveland, Colo., granddaughter Sahara (Jorge) Pastrana of Johnstown, Colo., grandson Austin (Kaitlyn) Grennan of Johnstown, Colo. and great-grandchildren Amora Pastrana, Alina Pastrana, Adin Grennan and Amelia Grennan. He is also survived by his siblings F. Johanna Peltier of Ypsilanti, Mich., Asa (Margie) Grennan of West Plains, Mo., Pat Grennan, of Loveland, Colo., Mary Jo (Phil) Thornberry of Camdenton, Mo., Kevin Grennan of Schaumburg, Ill., Helen (Gary) Kearn of Salina, Kan. and an aunt, Polly Champlin of Mead, Colo. Jim is also survived by many nieces, nephews and cousins including close friend and nephew Dustin Kearn of Tulsa, Okla. and cousin Tim Champlin of Loveland, Colo. David Nagle of Loveland, Colo., was a good friend and like a son to Jim. Jim is survived also by many friends he made throughout his life.
He was preceded in death by his parents, brother-in-law Vincent Peltier and sister-in-law Kathy Grennan.
A funeral Mass will be held on Thursday, August 29, 2024 at 11 a.m. at St. John's Catholic Church, 1730 West 12th Street, Loveland, Colo. 80537. There will be a luncheon served at the church following the funeral.
Graveside services will be held 11 a.m., Friday, September 13, 2024, at the St. Mary's Catholic Cemetery in Jamestown, Kan., with Fr. Joseph Kieffer officiating. Following the graveside service the family invites everyone to the Senior Center downtown Jamestown for a luncheon and fellowship.
Memorials may be sent to Patrick Grennan, 3997 Willowood Avenue, Loveland, Colo. 80538. Or call at 970-420-9639.
