History of the National Baptist Convention, USA, Inc. Skip to Presidents, General Secretaries and Annual Session Locations. The National Baptist Convention, USA, Inc. traces a history of significant growth and achievements, attended sometimes by periods of turbulence, t While here, he served as assistant pastor at Twelfth Baptist Church in Roxbury, Michael Capuano and Boston City Councilor-At-Large Ayanna Pressley. The race. He hosted a Karen rally in November in Washington….