Hi Jeanine
The parish of Trim contains 8 townlands that are Commons. 7 of them are South of town and only one is North, so I suspect that one is North Commons. It is officially named Commons (5th Division). It is on the main road to Kells and Athboy just North of Trim town. Across the road to the East is Blackfriary. It is a little over 15 acres in size. You should be able to find who lived there in 1854 in Griffiths Valuation. Subsequent cancellation books will give you the residents in 1872. The Ordnance Survey maps of that period will locate it for you exactly.
Hope this helps.
Tom

Thanks, Tom, a few years later. Just saw your post. I now know that Kate BANNON's parent's were Michael BANNON & Mary GOREY & she has 3 siblings all born in Trim, Meath,

Anne BANNON b 4 Jan 1856
Laurence b 26 Aug 1861
Mary b 17 Aug 1862

but don't know what happened to any of them. Did the emigrate to US like John & Kate?

Any BANNON's or GOREY's in Trim today that can connect?
Thanks,
Jeanine