John R. Yonkman Obituary
With heavy hearts, we announce the death of John R. Yonkman of Holland, Michigan, who passed away on November 2, 2020 at the age of 77. 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, Dr. Frederick F. and Jannet Yonkman. He is survived by: his wife Thelma (Grotenhuis). He is also survived by many nieces and nephews.
Memorial contributions may be given to Hope College.