Includes:
DYSIM/3/1–27: Records concerning Adlingfleet and Whitgift Drainage Commissioners
DYSIM/3/28–48: Records concerning Gainsborough Internal Drainage Board
DYSIM/3/49–78: Records concerning Hatfield Chace
DYSIM/3/79–80: West Riding County Council
DYSIM/3/81–85: Miscellaneous Records