Description
Allan Crawford's father. Professor of mathematics at the University of Toronto.
Related Subjects
The graph displays the other subjects mentioned on the same pages as the subject "Crawford, John Thomas". If the same subject occurs on a page with "Crawford, John Thomas" more than once, it appears closer to "Crawford, John Thomas" on the graph, and is colored in a darker shade. The closer a subject is to the center, the more "related" the subjects are.