In 1952, Thomas and his Hornet were involved in a close championship race with another Flock, Fonty's younger brother Tim. The two drivers won 8 races in their respective Hudsons, but Flock came out on top at the end, in spite of another late season charge from Thomas.
Herb's younger brother Donald made 79 starts in the Grand National division between 1950 and 1956, winning at Atlanta's Lakewood Speedway in 1952. Donald was the youngest driver to ever win a race in series history until Kyle Busch broke the record in 2005.