Thomas Hartsig
Revision as of 13:10, 3 August 2018 by Amycjgrace (talk | contribs) (Created page with "Thomas Hartsig was a computer software programmer who worked for Scott Foresman Inc. He worked on educational software. He was the programmer for Addition and Subtraction 1.")
Thomas Hartsig was a computer software programmer who worked for Scott Foresman Inc. He worked on educational software. He was the programmer for Addition and Subtraction 1.