Hi aghadowey,
This is my Wife's family and I have done a little research :- Sam Collins first wife Mary Jane Gilmour (Gilmore) was born about 1841 in Carnrallagh, Aghadowey, Londonderry to John Gilmore and Mary. She died on January 25, 1887 at Sistrakeel Londonderry, Ireland.
James Collins b. April 1, 1869 Limavady Emigrated to Australia and married there. He returned for a visit after ww2 and returned to Australia. he had no family.
John Gilmour Collins married Maggie J Hazlett September 23,1907 at Adelaide Presbyterian Church, Dublin. Notice of marriage in the Coleraine Chronicle October October 19, 1907. John was Manager of Grocery Firm.
Mary Ann Collins b January 4, 1872
Samuel Collins b. June 27, 1873 Sistrakeel died 1945 Sistrakeel. Married Mary Eliza 'Minnie' Ross 1903. He was the master of Limavady Workhouse.
Sarah Gilmour Collins b. November 12, 1874 Lishokeel? Tamlacht Finlagan, Londonderry. Died July 19, 1954 at 1301 Govan Road, Glasgow, Scotland. She was my wife's grandmother. Sarah married John Joseph Morrow on July 21 1903 in Presbyterian Church, Ballykelly,Londonderry. John was a Sea Captain. Their children were John,Samuel (twins) Mary Gilmour, James Collins, Margaret Matilda and William.
Hope this helps