I have info on a Catherwood/Calderwood family near Kilrea, Co. Londonderry, Ireland. J. Catherwood (full first name unknown) married, date and place unknown, Jane Gilmore (born 17 Jan 1806, first-born child of William and and Nancy, nee Johnston, Gilmore). Offspring include:
James Johnston Thomas Robert Mary Nancy Mary [first Mary may have died as infant]
I do not have dates of birth of the children.
In the Moneydig marriage register there is a marriage, 1 Apr 1864, of a Thomas Catherwood of Druman [sic], son of Thomas to Agnes McCloy. Thomas senior here could be the son of J. Catherwood.
The Catherwood name is long established in the North of Ireland. In the 1642 Muster Roll of Ulster, page 19, FHL (LDS) film #0897012 item 3, we find John Cadderwood, part of the company of Robert Montgomery.
In the 1831 census there are no Catherwoods in the Bann Valley area, but a number of Calderwoods, so it's clear these names are interchangeable.