Mike Hooper (baseball)
Michael "Mike" H. Hooper was an American professional baseball player who played in three games for the Baltimore Marylands during the baseball season. That is the basis for calling him a major leaguer.
Previously he was an outfielder for the Maryland club at least 1868 to 1870, when he led the team in runs scored all three seasons.
Maryland was one of the pioneer pro clubs when the National Association first permitted professional members in 1869.
Hooper was born in Baltimore, Maryland and died there at the age of 67.
