William Onderdonk, Jr. Wilmington, DE William A. Onderdonk, Jr., age 92, of Park Ridge, IL and Naples, FL passed away peacefully on November 10, 2018 with family at his side. He was preceded in death by his beloved wife of 53 years, Mary Jeanne, nee Erickson, parents William and Gertrude, sister Jean (Petty), and daughter-in-law Karen Onderdonk. He is survived by his children Beth (Paul) Truax, Todd (Sarah) Onderdonk, and David (Gloria) Onderdonk; grandchildren Jennifer (David) Downs, Lauren …

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