Mark J. Heimmermann, , of Appleton, passed away peacefully on Thursday, November 19, 2020, with his loving family by his side. He was born on September 3, 1955 to the late Joseph and Mert Heimmermann (Peters) in Appleton, WI.

Mark was a graduate of Appleton East High School. He married Sharon Kraus at Sacred Heart Church in Appleton on June 24, 1978. He enjoyed working on the computer, reading, and he was a HAM radio operator for many years.

Mark is survived by his wife; Sharon, and 2 sons; Matthew and Luke Heimmermann.

He was preceded in death by his parents.

A graveside committal service for Mark will be held on Wednesday, November 25, 2020 at 1:00 PM at Holy Name Cemetery Appleton, WI.