HARRISON / SHAW / FELL

I'm searching for info on my Harrison Ancestors, so far in the Slaidburn / Long Preston areas:
This is the only information I have on the family so far and I'm now looking
for ancestors and movements of:
My gg grandfather Richard Harrison who was born in Slaidburn about 1845.
Richard Harrison then married Isabella Shaw (born c1847) of Long Preston
about 1868 at Liverpool, Lancashire.
I have found two families in the 1841 Slaidburn Census that could be his
(but he wasn't born until 1846) so I
would now need to find the 1851 census.
1841 Slaidburn Census
Simfield
John Harrison 25 Farmer
Margaret Harrison 20 wife
Stephen Harrison 10 mths
OR
Croasdale
William Harrison 26 Farmer
Mary Harrison 24 wife
I favour the first one as three of Richard and Isabella Harrison's children
are named John, Margaret and Stephen -
(see below 1881 British Census of Richard and Isabella), but of course it may not be either:
Name Relation Marital Status Gender Age Birthplace Occupation Disability
Richard HARRISON Head M Male 34 Slaidburn, York, England Stone
Mason
Isabella HARRISON Wife M Female 33 Long Preston, York, England
Stone Mason Wife
Ellen HARRISON Daur Female 12 Long Preston, York, England
Scholar
John HARRISON Son Male 10 Long Preston, York, England
Scholar
William HARRISON Son Male 8 Long Preston, York, England
Scholar
Margaret HARRISON Daur Female 5 Long Preston, York, England
Scholar
Stephen HARRISON Son Male 3 Long Preston, York, England Stone
Mason Son
Robert HARRISON Son Male 11 m Long Preston, York, England
Stone Mason Son
Isabella Shaw's parents were Stephen SHAW and Ellen FELL who married Long Preston on 7 October 1837. She had a brother Robert born 1844 and sister Alice born 1842.
Most grateful for any help at all.

I am searching for my Harrison ancestry. I am a descendant of James Harrison m Anne Mae Lawton. My ggrandfather Joseph Harrison immigrated from Wigan in 1881 to the U.S.. Not sure if there is a connection but any help would be great. Thank You