Not sure if this is what you wanted
I found them on the 1871 census in Ulveston
RG10/4241/114/15 Pennington, Swarth Moor,Lancs
Samuel Wherry Head m 26 Iron Ore Miner Cornwall, St Austell
Mary A do Wife m 21 Miners wife Cornwall, Redruth
Margaret do Dau 1 Lancs, Pennington
the Wherry name appears to be a Cornwall name, if you would like me to look at earlier census I am happy to do so.
Libby