in 1881 census Harriet Chapman was running the Adelphi pub in central Douglas (tho in Onchan in Census) - her mother was Sarah Ford and Harriet' brother William Ford was present (they were born in England)
The only other Ford family were son-in-law of George Taubman at 54 Malew street Castletown

However in 1881 directory Lancashire House, William Jervase Ford, propr., North-quay Douglas

not sure if these help but all appear to be English born