Thanks for the feedback, Valeriec. The information was actually obtained from
Burke's Colonial Gentry, in which the following is written:
Mary Anne (Wentworth), b. about 1771, m. about 1799, Thomas Sinnamon, Esq. of Portadown, and had issue, Darcy, of Portadown; and Harriett, who m. George Kinkevel, Esq. of Portadown
Mary Anne Wentworth's father was Darcy Wentworth, as were a number of her direct Ancestors. The first time the name 'Darcy' appears with the
Sinnamon Surname is in the above, and it has been repeated a number of times since then, including here in New Zealand with my Sinnamon Ancestors. There were 2 Darcy Sinnamon's in Ireland, one being the Son of Thomas and Mary Anne, born circa 1799, and another one born circa 1883, with the name Darcy Wentworth Sinnamon.
There are also 2 Hugh Lockhart Sinnamon's, my direct Ancestor, who was born in 1840, and the other born circa 1880, who was the Son of Thomas Sinnamon who married Nancy Mills.
I have found a Will Entry at PRONI for my Darcy Sinnamon, and the Executor of his will is listed as 'Rachel Sinnamon, Widow', so I am guessing that this is either his Wife, or Daughter. I wonder if it might be worthwhile obtaining a copy of the Will, as this will no doubt make mention of his children? It is quite costly to obtain records from Ireland/England etc. here in New Zealand, so would the Will or Darcy's Death Certificate be the better one to obtain?
Thanks again!