He became the president of Earthgov in the 30th century. He had a daughter, Meloni, who married into the Thawne's rival family, the Allens. She and her husband, Don, had one son, Bart, who would later become the Flash.
- President Thawne's first name was unmentioned throughout his appearances. It was finally given as Thaddeus in passing by his creation, Inertia, also named Thaddeus, in Teen Titans (Volume 3) #43.
- 9 Appearances of Thaddeus Thawne (New Earth)
- 2 Images featuring Thaddeus Thawne (New Earth)
- 2 Quotations by or about Thaddeus Thawne (New Earth)
- Character Gallery: Thaddeus Thawne (New Earth)