Mark Koster Obituary
With heavy hearts, we announce the death of Mark Koster of Oswego, New York, born in Carthage, New York, who passed away on November 8, 2021 at the age of 60. Family and friends are welcome to leave their condolences on this memorial page and share them with the family.
He was predeceased by: his parents, William Koster and Dorine Koster (Barnhardt) of Carthage; and his brother Gary D. Koster of Rome. He is survived by: his wife Jackie Koster; his daughters, Kristin Phillips and Hannah Koster; his sister Cathy; his siblings-in-law, Jack Wright-Sech and Agnes Koster; and his grandchildren, Peter Nalle, Riley Nalle and Sophia Henrie. He is also survived by several nieces, nephews and friends.
In lieu of flowers, you may bring pet food to be donated to the Oswego Animal Shelter or send a monetary donation to the Oswego Animal Shelter, 621 East Seneca Street, Oswego, N.Y. 13126.
