The Kintobor Family from pre-gen Archie Sonic comics.
Given Ian Flynn canonized the name "Abraham Towers" for the Commander, I wonder what other content he has written for Archie comics, he may bring in.
In Shadow Generations, one of Prof. Gerald Robotnik's dialogue is the following:
What are the chances of those sons being Ivo Robotnik Sr. and Geraldo Robotnik? What about Bertha and Meredith Sanders?
While Ivo Kintobor and Bertha Robotnik are credited by Karl Bollers, Ian Flynn did come up with Geraldo Robotnik and Meredith Sanders.
Counterpoints:
The name "Abraham Towers" was carried over onto Post-SGW continuity of the Archie comics, while the history of Dr. Ivo Robotnik and pre-SGW Dr. Eggman were merged to form post-SGW Dr. Eggman. The Kintobor family however, was not, with just Gerald and Maria as confirmed members. (Snively being retconned almost entirely as his own person.) It's possible Sonic Team were cool with Flynn re-using his content from Archie comics, as long as it's for established characters in the game and post-SGW.