[1] The first superheroine called Yankee Girl was Kitty Kelly, debuting in Dynamic Publications's Punch Comics #1 (cover-dated December 1941).
[2] The next Yankee Girl, Lauren Mason, appeared solely in Dynamic Comics #23 (Nov. 1947) by artist Ralph Mayo, from the Canadian firm Superior Publishers.
[1] An updated version of Lauren Mason re-appeared in AC Comics' FemForce #29 (1990), as one of dozens of characters in a 24-page story by writer Bill Black and penciler Rik Levins.
[7] In present-day stories beginning in the 1990s, it was explained that Mason had been bestowed her powers by the wizard Merlin in order to produce a champion to aid the Allied Forces during World War II.
In various Femforce issues, Yankee Girl served as a spokesmodel for "Dunkies", a popular snack cake, along with Span-X, a fabric tailored for superheroes, with humorous results.