I decided to buy some credits at RootsIreland and look up some marriages, etc. from Knockaraven just in case they might be related to my Dorothea Gilmour.
Dorothea just might have had a sister Ellen b. abt 1834. There is a marriage of Ellen Gilmour, 22, of Knockaraven, d/o William Gilmour, farmer at the Dromore Presbyterian church on 22 Feb 1855 to Robert Gilmore of Drumamagross (Drumardnagross ?), 22, farmer s/o William Gilmour, farmer. Witnesses were Robert John Carson and William Gilmour. Robert William and Ellen with son Matthew and his family are in Knockaraven on the 1901 Irish census but not on the 1911. Ellen probably died Oct-Dec 1907 Omagh and Robert Jan-Mar 1904 Omagh. Ellen's grandson, Robert Frederick Gilmour emigrated to Canada and married Mary Isobel Hawkes (b. Omagh) in Toronto in 1924.
A closer possibility for a sister to Dorothea is Eliza gilmour, 22, of Knockaraven, d/o William Gilmour farmer who married John Crozier of Candy Magheracross, 22, farmer, s/o John Crozier, farmer. Witnesses were John Jamison and Thomas McCusker. Marriage took place 06 Feb 1849 at Dromore Presbyterian Church. At last evidence that Thomas McCusker existed past 1846! John and Eliza seemed to have at least one child - Sarah Anne b. 06 May 1867 Ederney, Fermanagh. Sarah might have married 26 Mar 1894 at Fountainville Presbyterian church in Belfast. Sarah Crozier, full age, d/o John Crozier, painter to James McLamon, full age, painter, s/o John McLamon, labourer. Witness was John McLamon and Mary Crozier.
I had speculated that Dorothea's brother was the James Gilmour who married Isabella Bradley in 1850 and that proves to be wrong as the father of James the carpenter was John Gilmour, also a carpenter. Too bad because I had tracked many of their children to Michigan. Their son Robert married in Larkhall, Scotland where my Ggrandfather had moved to. Robert eventually ended up in Michigan as well. At least I can cross off one family.