William Victor Giacomelli age 73, of Ada, MI passed away on Tuesday, April 14, 2020. He was born on November 16, 1946 in Erie, PA. He was preceded in death by his parents, Victor and Louise Camino Giacomelli; brother, Ronald Giacomelli; sister, Janet Giacomelli; parents-in-law, Walter and Eleanor Sulecki Baginski; sister-in-law, Alexandra Baginski; family dog, Riley. William is survived by his wife, Alice C. Giacomelli; children, Douglas (Lisa) Giacomelli, Jennifer Giacomelli; brother, Robert (Gail) Giacomelli; sister, Carol Eck; grandchildren, Connor Giacomelli, Solair DiDomenico; sisters-in-law, Rosemary (Robert) Dunsmore, Geraldine Giacomelli; son-in-law, Robert DiDomenico; family cat, Diego. He was a 1st Lieutenant in the United States Army and received a bachelor’s degree in business from Gannon University in 1968. William was a retired motorsports industry veteran, auto enthusiast and woodworker. He belonged to the Knights of Columbus and St. Roberts of Newminster Parish. He was an avid golfer and member of St. Roberts and Friday Night Forty Men’s Leagues. Visitation will take place Friday, July 31, 2020 at O’Brien-Eggebeen-Gerst Chapel, 3980 Cascade Rd. SE, Grand Rapids, MI 49546 from 2-4 PM & 6-8 PM. Mass of Christian Burial will take place Saturday, August 1, 2020 at 11:00 AM at St. Robert of Newminster, 6477 Ada Dr SE, Ada, MI 49301. COVID-19 restrictions will be in place with social distancing and masks required at both locations. Rev. Leonard Sudlik, presiding. Memorial contributions may be made to Metro Health Cancer Center, 5950 Metro Way, Wyoming, MI 49519, Catholic Charities of West Michigan, www.ccwestmi.org/get-involved/donate/, or Knights of Columbus Council 4362, c/o Ron Pelka, 3043 Paris Park SE, Grand Rapids, MI 49512.