I’m not sure under what category professional ballplayer would be listed (not the “professions,” which I think would mean mostly medicine, law, education, and the pulpit). Most likely there weren’t any black professional ballplayers in Georgia at the turn of the century. There weren’t that many in the county at large, at best a few dozen, probably—though there would have been many, many semi-professional or amateur players, of course.
In the 1900 U.S. Census, I’ve located a total of nine. I wouldn’t claim that this is anything like a comprehensive accounting, since my research mostly focuses on later eras, and it’s not actually that easy to search my notes for exactly this information. But here are the black men I’ve found in the 1900 census whose occupation is listed as ballplayer:
Sherman Barton (listed as a “Base Ballist,” a phrase that would have sounded antique even in 1900)
John Bingey (sic; could be the same as William Binga)
Peter Burns, a key figure in the Tokohama affair
Charles Grant, “Tokohama” himself
For whatever reason, all lived in Chicago as of June, 1900, when the census was enumerated, except for Barton, who lived in Normal, Illinois, and Johnson, who appeared in his hometown, Findlay, Ohio. All played for the Columbia Giants or Chicago Unions around this time.
Walter Ball can be found living in Grand Forks, North Dakota, where he was playing professional ball, but in the census he is listed as a “R. R. Porter.” A couple of guys who might be Bill Monroe can be found in Chicago, but aren’t listed as ballplayers. The 17-year-old Pete Hill, who by some accounts started playing professionally in 1899, is listed as a “day laborer” in Pittsburgh. Many others who were definitely professionals at the time, especially in the East, can’t be found for certain in the census, including nearly the whole roster of the Cuban X Giants (Frank Grant, Clarence Williams, etc.). It seems likely that the Cubans were on the road and were missed by the census takers.
Going beyond the census, I’ve found one official document that lists a black man’s occupation as ballplayer in 1900: the death certificate of Andrew Jackson, who had been for several years the third baseman and captain of the Cuban X Giants. Jackson, who had led his team on a Cuban tour a few months earlier, died of heart failure at the age of 34 in New York City on May 15, 1900. (Apologies for the poor quality of the image.)
I have to say I know virtually nothing about Andrew Jackson, or for that matter about the Cuban X Giants, which seem to be one of the least written about great teams in African-American baseball history.