To back up a lot of what I previously posted here, I checked my McQuiston book today by Leona B. McQuiston and in Vol. 2, most of these folks are listed. If I have this correctly...William McQuiston and Robert McQuiston were brothers and sons of Thomas McQuiston listed on pg. 627 of Leona's book under the "Other Lines" of those whose lineages are not or were not known when she wrote this book back in the 1930's. Perhaps today someone knows more about this Thomas McQuiston who as Leona states from pg. 627 was of "Lark Hill" Kiltinny, COLERAINE, Co. L'derry, Nor. Ireland and born in 1768. The book says however that he was probably born on a farm in "Cave Hill" on the Portrush Rd. as Thomas once owned that farm which she summized was probably given to him by his parents. Thomas' grandson Matthew Black McQUISTON is the authority for the statement that "his ancestors took part in the seige of L'derry having gone to Ulster with the "plantation" of that territory'. Thomas McQ. married Martha BLACK who was born in 1772 and she died Aug. 2, 1844 at age 72. They were members of the Presby. Church either the First Coleraine or Ballywillan in the parish of Aghadewey [sic??] AghadOwey...probably. Martha's brother, Matthew BLACK's property was inherited by her children. Thomas McQ. died Nov. 14, 1843 at age 75. Thomas, Martha and 7 of their children are buried in neighboring graveyard, "Ballyaugherton" parish of Coleraine, Co. L'derry. Their Children were: William, Paul, Thomas, Sally, Matthew (b. 1804 m. 1836 Margaret COURTENAY), Robert (who wrote the 6 pg. will in Co. Antrim and died on Nov. 6, 1881, Martha (who m. Mr. ORR), John and Martha McQUISTON.
See pgs. 627, 628, 629, 631, and 669 of the McQuiston book. There is far too much to type here, but for those who have this book, I think you can easily compare the info I posted in the previous message to this thread.
Margaret BENTLEY was indeed her name mentioned in Robert McQuiston, Esq. will (I think it was his will 6 pg. will), and the ORR children are also shown in the book. Also the will of Elizabeth McQuiston from 1874, she was nee LAMONT thus the witnesses signing of her will of James LAMONT poss. a brother or surely a relative of hers. Elizabeth was married to Joseph McQUISTON b.c1800 who was also among those of the unknown lineage lines in the book.[vol.2]
That's all for now, but these folks did live in the same places as those that intermarried or were connected to our MOODY branches from Thomas MOODY b.c1710 in/of Aghadowey, Co. L'derry who married 1st to Jean McCUISTON(McQuiston) daug. of Benjamin. Hope this further helps to sew up some lines that perhaps others out there may have been searching for.