For research purposes
I haven't yet checked findagrave, so there might now be more information on this branch of the family that what I found years ago.
1.Andrew Cochrane, farmer
https://www.findagrave.com/memorial/46104922/william-cochran2.Rev. Dr. William Cochran/Cochrane, b. 1757-1833 near Omagh, Northern Ireland; vic-president of King"s College, Windsor, Nova Scotia; m. 1785 Rebecca Cuppaidge in Philadelphia and had seven children:
3.Andrew William Cochran, 1793-1849, JP; member of Canadian Executive Council and secretary to several governors; m. July 24, 1843 Magdalen Kerr, dau of Judge James Kerr and had four children; he died 1https://www.findagrave.com/memorial/46104922/william-cochran849, aged 56.
3.Rev. James Cuppaidge Cochran, b. 1798, died 1880; born at Windsor, Nova Scotia; m. Anna Mathilda (Matilda) Power, 1809-1884, in 1826 and had 12 children; lived Nova Scotia. died at Halifax.
4.Charles Prescott, 1844-1866
4.Harriet Isabel, 1846-1914, m. Willis Riddick Wainwright
4.Mary, 1852-1908, m. Robert B. Lang
3.Maria, 1788-1845
3.Frances E., 1795-1881.
2.Mary Cochran m. the Rev. George Wright, 1752-1819. He was born Omagh, NI, son of William Wright; the m. 1787 in New York City; he was educated at TCD.
3.William Wright.
Please check familygrave for additional information
It would be my best guess that Rebecca is somehow related to Maj. Robert Cuppaidge of Lambstown, Co. Wexford and his wife, Elizabeth Warren as their dau, Experience, married Amos Strettell. Their son, Robert Strettell, was the mayor of Philadelphia in 1752.
Ref: Burke's Landed Gentry, Strettell
Burke's Irish Family Records, Cuppage