to urubu76,
I see this is over 5 years old, but hope you are still "on the lookout".
We need to talk further.
You mention a James Downing of "Kilberry Downing". He is later than my focus, but I would suggest "Kilberry" is actually Killyberry Rd, which terminates directly across the street from the entrance to Rowesgift House, which was gifted to John Downing on his 1727 marriage to Anne Rowe, by her father, Revd. Simon Rowe, Rector at St. Tida's Church of Ireland, Bellaghy.
John was the 2nd son of Col. Adam Downing of Rocktown, a little further north near Gulladuff.
There were many Downings in the area, including a branch we call the Dreenan Downings, many of whom were RC, that I have not been able to connect to Adam's tree, but am sure there is an unproven connection.
Do not get thrown off by the different spellings. For example, George Downing of Maghera, was (supposedly) the son of George Downinge of Ballykelly (NE of Derry City), and Henry DOWNEY, whom I met and interviewed this past May, told me his grandfather changed the name from DOWNING to DOWNEY. Seeing where he lives in relation to Adam's old "castle", and based on him telling me he was the 7th generation Downing to live on that site, I am convinced there is a connection to the Dreenan branch because he is RC and his parents are buried at St. Mary's, Lavey Parish on the A42 just north of Gulladuff.
I also saw two grave markers in the Lavey Parish yard, both slabs laying flat on the ground.
One was for John Downing, d. 1847, and his wife, Nancy, d. 1861. The other was for Dawson Downing, d. 29 Jan 18?? (the year was difficult to read, but it looked like 1865). I have a Dawson Downing in my tree, buried in the Downing vault at St. Tida's in 1807, so I thought it unusual for such a unique forename to be duplicated. There was a connection to the Dawson family by the marriage of Sarah Downing, dau of the aforementioned John of Rowesgift, to Adm. Charles Dawson in 1760, but my Dawson, Sarah's brother, was born in 1739. Perhaps the families were close before.
John of Rowesgift had another son named (Capt.) John, b. c.1740, who had two sons named John and James, but I have no dates, although I would estimate they were both born about 1765 +/- a few years. The following generation could have included other 'Johns' and/or 'James' and their descendants. Unfortunately, 'John Downings' were a plenty.
Anyway, please reply and we can discuss further.
I suspect your James may have descended from one of my branches and I have a ton of data to share.
Rick