John Marcum (1913–1981) was the co-founder of ARCA and a NASCAR official from Toledo, Ohio, United States.
He owned cars entered in two NASCAR Grand National Series races with one Top 10 finish.
[3] John Marcum, Blair Rattliff and Tom Cushman would be parts owner of Dayton Speedway in 1958.
[3] Today ARCA's President is the late John Marcum's grandson Ron Drager.
John's wife, Mildred Marcum, was an integral part of the organization and worked both in the ARCA office on a regular basis until her death at 98 in 2012.