It turns out there was an even earlier “Clements Bell” who died in Boltnaconnell aged 82 in 1845:
http://census.nationalarchives.ie/pages/1851/Antrim/Lower_Massereene/Killead/Boltnaconnell/22/____ BELL
David BELL (c1761-1845)
Clements BELL (c1763-1845)
Clements BELL (c1800-1870) m. Jane HERON
William BELL (c1824-1878) m. (1865) Agnes QUIREY
Mary Jane BELL m. James ARCHER
Alexander BELL m. (1862) Elizabeth FULTON
Clements BELL (d. 1860)
William Sayers BELL (c1820-?) m. (1847) Elizabeth IRELAND
John Ireland BELL (c1848-?)
Clements BELL (c1849-1915)
Clementina BELL (c1827-1909) m. Samuel SUFFERN
William SUFFERN
Sarah SUFFERN
Mary SUFFERN
Violet SUFFEN
Clements BELL (c1800-1870) moved to Ballyearl. His son William BELL named his “uncle” William Sayers BELL as an executor. However, there is a big age difference, so if I’ve got this right then the first Clements probably had two wives, and may have had a load of other children.
Interestingly, William Sayers Bell said in the 1901 census that he was born “in Belfast”. Here are a few other Boltnaconnell Bells I haven’t been able to place yet…
William BELL m. ____?
Joseph BELL (c1802-?), schoolmaster m. (1849) Agnes HAWTHORN
David BELL m. Nancy CATHCART
Agnes BELL m. (1827) Daniel REA
Jane BELL m. (1828) Samuel COURTNEY
David BELL m. (1830) Mary HINDMAN
The last family is from the Killead Presbyterian marriage register.