The Dayton Marcos history predates the formal organized leagues of Negro league baseball. As an independent team, and also as the only black team in the Ohio-Indiana League they played black and white teams all over the country throughout the 1910s.
Old newspaper accounts and fading memories are some of the only sources of information on the Marcos. The team was started by Daytonian Moses Moore, a real estate agent. Moore owned the New Marco Hotel and apparently named his team after that enterprise. The team was to be entertainment for Dahomey Park, the first black-owned and operated amusement park in the United States. Local newspapers sometimes referred to the team as "Moses Moore's Marcos."
They played in the then newly formed Negro National League, which was formed by Rube Foster. The Marcos were one of the original eight teams to play in the first organized major Negro league to survive a full season. At that time, the Marcos were owned by Daytonian John Matthews who ran the team until his death in 1942