William Frank Kosinski Obituary
It is with great sadness that we announce the death of William Frank Kosinski (Countryside, Illinois), who passed away on January 14, 2026, leaving to mourn family and friends. Leave a sympathy message to the family on the memorial page of William Frank Kosinski to pay them a last tribute.
He was predeceased by: his son Michael; his parents, Frank Kosinski and Adeline; and his brother-in-law Joe (Randi). He is survived by: his wife Margaret; his daughter Annie (Bill Barranco); his granddaughter Violet; his brother Jim (Tammy); and his brothers-in-law, Nunzio (Christine), John (Vicki), Frank (Elda), Andy and Christopher. He is also survived by numerous nieces, nephews, and grand-nieces & nephews.
In lieu of flowers, donations to the Greater Chicago Food Depository (https://www.chicagosfoodbank.org*1csa4cp*_gcl_au*MTAxNTQyNzc0Mi4xNzY4ODYxMTc1) or the American Cancer Society would be appreciated.
