David Henry Koski, age 64 of Ada, passed away unexpectedly of natural causes Wednesday, March 29, 2017. He is survived by his loving daughters Nicole Loiseaux of California, Elizabeth Clark of Kalamazoo; grandchildren Dayton Lay and Noriaha Clark; former wife Lori Baker; brother Joseph (Pamela); sisters Elaine (Thomas), Mary (Anthony), Judy, Cathy (Norman); also numerous nieces and nephews. David graduated from Western Michigan University where he played hockey. His favorite pastimes were fishing, traveling, attending concerts, and most of all being with his daughters and grandchildren. A private family service will be held. Memorial contributions may be made to Frederik Meijer Gardens, 1000 East Beltline Ave. N.E., Grand Rapids, MI 49525.