James "Buck" Buchanan Cassiday IV of Rochester, Illinois sadly passed away Sunday, September 7, 2025. Buck was born on March 3, 1956 in Springfield, the son of James "Jim" Buchanan Cassiday III and Sharon (Cain) Cassiday Trello. Buck married Linda (Taft) Cassiday on July 23, 1983. Buck retired from Springfield Mass Transit District in 2018. He was living his best life in retirement while tending his flowers, grooming his yard, enjoying archery and fishing, and laughing with friends and family. Buck is survived and will be deeply missed by his wife Linda, son Cody (Laura) Cassiday, daughter Amy Cassiday, mother Sharon Trello, brothers Kelly (Ellen) Cassiday and Matt (Susan) Cassiday, Andy (Jen) Trello, and many nieces and nephews. He was preceded in death by his father Jim Cassiday, and brother Mike Cassiday. A time of remembrance will be held from 3pm-5pm on Saturday, September 13, 2025 at Wilson Park Funeral Home, 200 E. Main Street in Rochester.