Welcome to Rootschat. I.G.I. (
www.familysearch.org) lists several children of Lawrence and Agnes:
1. John O'Neill born 15 June 1864 Whitehouse District, Antrim, Ireland (mother- McMeekin)- page 391 in civil register
2. Robert O'Neill born 27 Dec.1866 Whitehouse District, Antrim, Ireland (mother- McMeekin)- page 436 in civil register
3. Margaret O Neill born 28 Oct.1869 Co. Armagh (mother- Mc Meekin)
4. Hugh O'Neal born 10 Nov.1879 Belfast, Antrim, Ireland (mother- McMechan)
5. Sarah O'Neill born 6 Feb.1872 Co.Antrim (mother- M'Meekin).
6. Annie O'Neill born 4 Sept.1874 Co. Antrim (mother McMehan)
7. Thomas O'Neal born 24 Mar.1877 Antrim, Antrim, Ireland (mother- McMeechan)