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Jack March is a former American tennis player and promoter

Promoter (entertainment)

An entertainment promoter i.e. music, wrestling, boxing etc is a person or company in the business of marketing and promoting live events such as concerts/gigs, boxing matches, sports entertainment , festivals, raves, and nightclubs.- Business model :Promoters are typically hired as independent...

 best known for promoting the pompously entitled World Pro Championships from 1950 through 1964.

In the fall of 1939, March was already a teaching professional at the Hollywood Beach Hotel in Florida.

March played in the U.S. Pro Tennis Championships

U.S. Pro Tennis Championships

The U.S. Pro Tennis Championships was the oldest professional tennis tournament played until its final year of 1999 and is considered as a part of the professional grand slam from 1927 - 1967 until the advent of Open Era...

from at least 1942 through 1950.