Alan D. Posthuma Obituary
We are sad to announce that on January 30, 2026, at the age of 72, Alan D. Posthuma of Beaver Dam, Wisconsin passed away. Family and friends are welcome to send flowers or leave their condolences on this memorial page and share them with the family.
He was predeceased by: his parents, Jacob Posthuma and Betty A. Posthuma (All); his former wife Linda Posthuma; and his grandsons, Jonah and Noah Lindert.
He is survived by: his fiancé Kim Steinberg of Beaver Dam; his children, Chris Posthuma of Beaver Dam, Joel Posthuma of Beaver Dam, Stacy Lindert of Beaver Dam and Tina Servidone (Erik); his partner's daughters, Holly Koronkiewicz (Dave) of Beaver Dam, Alicia Steinberg of Beaver Dam and Marissa Steinberg of Wausau; his grandchildren, Bryce Posthuma, Ethan, Kylee Lindert, Collin Koronkiewicz, Colton Roberts and Jenna Servidone; and his brothers, David Posthuma (Deborah) of Fox Lake, Gary Posthuma (Diane) of Waupun, Brian Posthuma (Marcia) of Fox Lake and Rodney Posthuma (Brenda) of Beaver Dam. He is also survived by nieces, nephews, and other relatives and friends.
