Doby was the first African-American to play in the American League when he joined Cleveland in 1947.
Baruch, who was of Jewish ancestry, worked his way up at a small brokerage house on Wall Street, earning his first million at age 30. He served as an adviser and confidant to six U.S. presidents, from Woodrow Wilson to John F. Kennedy.
The statues are funded by Camden attorney and GOP activist John Rainey and his wife, Anne. U.S. Sen. Tim Scott and philanthropist Darla Moore are expected to attend.
(The AP contributed to this story)