No need to have two topics on the same subject as it causes needless confusion.
Assuming you aren't familiar with the area-
Shanlongford is the townland (this will be considered the property's address- it was only about 1970 that we got road names and postcodes)
Here's a map showing the townland-
https://www.townlands.ie/londonderry/coleraine/errigal/shanlongford/It's quite likely the property didn't have a name of its own (haven't looked to see exactly where it might be but if it's in Shanlongford I can see part of it and walk to it from my home)
Ringsend is the enumeration district for the census as well as the local post office (now closed) so this might appear on letters addressed to the family.
Coleraine is the nearest town but it's about 8-9 miles away from Shanlongford.
The 1911 census (link given above) says there were 14 children but only 8 living although there could be others born after the census was taken (April 1911).
Here's the 1901 census (transcription duplicated for some reason)-
www.census.nationalarchives.ie/pages/1901/Londonderry/Ringsend/Shanlongford/1516687Both census have links to the pages that will give details on house, etc.