Hi hully,
I found the following entry in Griffith's Valuation for a Patrick Leaden from 1859. There is also one for a Peter Leaden in the same Cahore townland.
Griffiths Valuation Record Information
Tenant : Patrick LEADEN
Landlord : Hugh LANE
County : LONDONDERRY
Barony: Loughinsholin
Union: Magherafelt
Parish: Ballynascreen
Townland: Cahore
Printing Date : 1859
Sheet Number 40 / Map Ref. 41
Could this be a relation?
PS this is a great site for GV - it presents a view of the original entries and the associated maps.
linkCheers.
Moderator Note : Link Shrunk