Master Geis was a martial arts icon here in Houston. My dentist trained with him. I never got to meet the man and I wish I had.In judo and aikido my adult instructor was, before he retired from teaching, Ray Williams, whose instructor was none other than Karl Geis himself. I never even met Karl, but apparently he was something else.
Karl Geis - Wikipedia
The aikido rank in that is actually inaccurate, as Karl "stepped out" of the Japanese rank structure when he began Fugakukai, in which he was ranked up by the students as they needed to grow themselves until they gave him the (imo honorific) 12th Dan with the title Hanshi.