John Cochran was born in Ireland on November 28th, 1790 to his parents Samuel Cochran and Margaret Wilson.  He grew up in Castlebar, Ireland with his 4 brothers and sisters:

Alexander Cochran, born 1794 in Ireland
Mary Cochran, born 1797 in Ireland
Catherine Cochran, born 1800 in Ireland
Margaret Cochran, born 1804 in Ireland