Family Lines

When enough genealogical and/or DNA data are available, the CCFHA groups family lines descending from individual male-line progenitors into "Divisions" (e.g., Divisions I, II, III, IV, VII, and XV).  In the absence of such data, however, family lines are grouped into Divisions based on geographic region or ethnicity, with the goal of moving these families to progenitor-based Divisions if more data become available (see Other Divisions).

Maps:

  • Birthplaces of some descendants of the largest Divisions (I, II, III, IV, and VII) born with the Corson surname or a related variant:

Birthplaces of some Division descendants in the eastern United States born with the Corson surname or a variant Birthplaces of some Division descendants in New York, New Jersey, and Pennsylvania born with the Corson surname or a variant