About the name Thad
Thad belongs to the English & American tradition. Its roots are documented, even though its precise meaning is not recorded in the standard references — an honest gap we prefer to a confident guess.
In the United States, Thad first appears in Social Security records in 1880. It climbed to its best-ever rank of #401 in 1967, and in 2024 5 babies received the name — 8,212 in total since 1880. Those are the official counts, not estimates.