Yes Steph, it's Clinton Isreal.
Clinton Isreal started at Akro as the blueprint machine maker and he was also in charge of Akro's packaging department. He was VERY knowledgeable in working with glass and it's characteristics. He influenced the Akro patches while at Akro. Then in June 1st, 1930 he resigned with three others that worked at Akro and he and the others went to Master Marble in May 20, 1930. Then in August 1st, 1941 he formed the Master Glass Company.
I just obtained several 1" Akro shooters that look like Master Marble 1" shooters that were made when Isreal worked at Akro.
He owned the Master Glass Company and worked at Master Marbles as well as Akro.
It gets confusing to just say he owned Master since these two companies are so close in names...lol.