He graduated from Englewood High School in 1970 and spent most of his career in the mortgage underwriting industry. John was a member of the St. Nicolas Park Christian Church and had a passion for cars and taking scenic drives.
He was predeceased by his father, Walter A. Williamson, and sister Jane (Williamson) Revis.
He is survived by his mother Marguerite Williamson, Brothers, Richard (Gerald) Williamson, Robert (Darrell) Williamson, Donald and Candy Williamson, Walter S. Williamson, and Sister, Nancy (Williamson) Tanner, He also leaves behind many cousins, nieces, nephews and friends.
The family would also like to extend special thanks to one of his closest friends, Lisa Duncan, for her dedication, care and support.
No services are planned at this time.