· History and Directory 1829 includes Helton

· Askham Hall - A description

Askham Parish registers (introduction)

1566-1593,  1594-1607,  1608-1632,  1633-1677

Constables Census 1787 Askham, Helton Flecket

· Window Tax North Westmorland 1777

· Hearth Tax Westmorland 1664/5