1881 Census has two possibilities for your William :
Marr Age Sex Birthplace
William FARGHER M 54 M Lonan, Isle of Man, England
Rel: Head
Occ: Farmer Of 72 Acres
Hannah FARGHER M 35 F Lonan, Isle of Man, England
Rel: Wife
Alice FARGHER U 21 F Lonan, Isle of Man, England
Rel: Daur
Occ: Farmers Daur
George Wm. FARGHER U 19 M Lonan, Isle of Man, England
Rel: Son
Occ: Farmers Son
John Jas. FARGHER 17 M Lonan, Isle of Man, England
Rel: Son
Occ: Joiner (Apprentice)
Amelia FARGHER 15 F Lonan, Isle of Man, England
Rel: Daur
Occ: Farmers Daur
Nessie FARGHER 13 F Lonan, Isle of Man, England
Rel: Daur
Occ: Scholar
Charles FARGHER 10 M Lonan, Isle of Man, England
Rel: Son
Occ: Scholar
Annie FARGHER 7 F Lonan, Isle of Man, England
Rel: Daur
Occ: Scholar
Thomas FARGHER 6 M Lonan, Isle of Man, England
Rel: Son
Occ: Scholar
William H. FARGHER 5 M Lonan, Isle of Man, England
Rel: Son
Hannah FARGHER 3 F Lonan, Isle of Man, England
Rel: Daur
Jane FARGHER 2 F Lonan, Isle of Man, England
Rel: Daur
Emily FARGHER 6 m F Lonan, Isle of Man, England
Or
Marr Age Sex Birthplace
William FARGHER M 39 M Patrick, Isle of Man, England
Rel: Head
Occ: Fisherman
Emma FARGHER M 30 F Peel, Isle of Man, England
Rel: Wife
Catherine A. FARGHER U 11 F Peel, Isle of Man, England
Rel: Daur
Occ: Scholar
Emma FARGHER 8 F Peel, Isle of Man, England
Rel: Daur
Occ: Scholar
William Chas. FARGHER 5 M Peel, Isle of Man, England
Rel: Son
Occ: Scholar
Robert FARGHER 1 M Peel, Isle of Man, England
Rel: Son