Thanks for your responses, they are really very much appreciated. The following are the dates and given names as found on the 1851 Census for Derrykillultagh Townland entry number 40:
John McLernon(McLernan), Head, M, 48, farm laborer, Ant,(R)---- Great-great grand father
Jane McLernon,wife, M, 41, winding yarn, Ant, (R)----------------- --Great-great grand mother
James McLernon,son, U, 17, linen weaver, Ant, (R/W)
William McLernon, son,U,10,winding yarn,Ant,
George McLernon,son,U,6, at Anderson school,Ant-------------------great grand father
Isabella McLernon,daughter,U,2, none, Ant
Absent from home March 30, 1851, Ann McLernon,14(daughter, house servant (Ant)
John and Jane we believe were married in 1833. Jane's maiden name we believe is Higginson.
All the children except James and Ann went to the U.S.. James stayed in Ireland and would be the father of any related McLernons still in Ireland about which we are very interested. Also we would really love to confirm when George and William left for the U.S.. Family tradition tells of George and William leaving for the U.S. in 1859 and George serving in the Civil War.
My great grand mother Margret Ellen Allen was born in 1856 +/- and died in 1936. She and my great grand father rest in Lisburn Cemetery(note my great grand father changed his last name to McClellan in 1866)
Any help will be very much appreciated and thanks again.
McLernon/McClellan