Heather,
I might be able to add some info that could possibly give a link to Honeyford.
John Honeyford (1825 - 99) son of Benjamin Honeyford and Abigail ? married Margaret Ann Smith in the Wesleyan Chapel, Strabane on 16 October 1861. On the marriage cert John was described as a merchant, from Strabane, and Margaret as a Draper, a widow and daughter of Alexander McClelland a farmer. Perhaps the Smith connection came in here.
John's sister Frances Honeyford (b 1831) at the age of 16 had married William (aka Thomas) Sweeney in Drumcree Parish Church on 30 Dec 1846. William/Thomas was 25 and from the same parish, son of John Sweeney (deceased). His occupation is not clear. I have been told that John went to Strabane with his nephew, Frances's son Thomas William Sweeney. Directories show Sweeney and Co Egg and Butter Merchants operating in Strabane for many years. I don't know who founded it and what John's role was in it. I have contact with a member of the Sweeney family who is also interested in family history.
Hope this is of interest. I will be happy to supply source details if you wish.
James