The trees included in this section include ancestors traced to the historic county of North Riding of Yorkshire. They include:

Sarginsons from Asygarth and beyond – includes a significant branch of the family who emigreated to Canada in the mid 19th century.

Sarginsons of Middleham and beyond – includes a branch of the family whose surname became Sargeson and another who moved to Derbyshire in the coal mines.

The primary surname variants in these trees is Sarginson.