John Donaldson References Quick Facts & Related Topics John Donaldson American baseball player Ask Anything Homework Help Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of Encyclopædia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: baseball/ Segregation…of the greatest Black pitchers, John Donaldson and Jose Mendez. Read More…of the greatest Black pitchers, John Donaldson and Jose Mendez. Read More