ENDescription
Friend and attorney to Professor John Thomas Crawford, father of Allan R. Crawford.
Related Subjects
The graph displays the other subjects mentioned on the same pages as the subject "Spence, John David". If the same subject occurs on a page with "Spence, John David" more than once, it appears closer to "Spence, John David" on the graph, and is colored in a darker shade. The closer a subject is to the center, the more "related" the subjects are.