Sorry, Mike, but my records are very limited and I do not have anything else on the surnames Hargadon or Conway. However, I would suggest that you also try searching the LDS records, particularly the IGI, for your ancestors. Go to http://familysearch.org
or try your nearest Family History Center (Mormon) for furthur help. There are a number of folks who post here at this query page and who research these surnames. Try searching back thru the postings and connecting up with others who are researching these names in Co Sligo. Sorry I cannot help more.
Best wishes, Ann