David G. Thill Obituary
It is with deep sorrow that we announce the death of David G. Thill of Janesville, Wisconsin, who passed away on May 18, 2026, at the age of 85, leaving to mourn family and friends. You can send your sympathy in the guestbook provided and share it with the family.
He was predeceased by: his parents, Leslie Thill and Jeanive Thill (Gunderson). He is survived by: his wife Mary Thill; his daughters, Melissa Costello (Steven) and Stephanie Hansen; and his grandchildren, Beckett Costello (Megan Armstrong), Ryan Costello (Makinzie Traver), Nadia Hansen and Catherine Hansen.
In lieu of flowers, memorials may be made in David's name to the Humane Society of Southern Wisconsin (https://www.petsgohome.org).
