Thomas Siwek, 73, Duncan, SC, passed away on September 11, 2020, He was born to the late Stanley Z. Siwek and late Angeline K. Wronski in Chicago, IL, on February 3, 1947. Thomas leaves behind his beloved wife Phyllis Siwek, two sons Thomas and Brian Siwek, sister Laurie Randolph, and three grandchildren. He was the owner Pro Tech Plastics for forty years. Thomas enjoyed aviation, playing golf in his spare time, and spending time with family. He will be truly be missed and loved.