Hi Wilja,
Welcome!
I've found this Nicholas in 1851...confirms nothing for you, but it's a start!
18 High Street, St Peter Port, Guernsey
Nicholas Le Pelley, Head, W, 78, Leather Merchant, Catel Guernsey
Catherine Ellen Le Pelley, Daughter, 28, Housekeeper, St P P Guernsey
Nicholas Collenike, Visitor, 78, Retired Coal Merchant, Catel Guernsey
Margaret Collenike, Visitor, 75, S P P Guernsey
HO107/2530 F 293 P 8
Regards, Emma
