Here is the 1946 Unity Annual Conference Yearbook. Members of Unity Annual Conference are listed in pages 4-18 and Licensed Unity Ministers and Teachers are listed in pages 18-20. The distinction is made on p. 19 "Licensed ministers are in charge of Unity centers. Licensed teachers are teachers serving in a Unity center or teachers conducting classwork."
There are at least three African-American who are listed in this yearbook: Henrietta Gorden and Frieda Ann Whitfeld of South Side Unity Center in Chicago and James Elliot of Christ Unity Fellowship in Detroit. All three are designated "(Col)".