First Generation

1. Mary Crosson was born about 1827. She died on 18 September 1885 at the age of 58 in Clonacullion, Monaghan.

Mary Crosson and Owen O'Brien were married about 1840. Owen O'Brien was born about 1820. He died on 16 September 1897 at the age of 77 in Drumnaveil, Drumgoon, Co Cavan.

Mary Crosson and Owen O'Brien had the following children:

+2	i.	Catherine O'Brien.
+3	ii.	Luke O'Brien.
4	iii.	Patrick O'Brien was born on 20 February 1846. He MAY have appeared in the census in 1901 at Cola in Killinkere/Castlerahan, Co Cavan.
+5	iv.	Anne O'Brien.
+6	v.	James O'Brien.
7	vi.	John O'Brien was born on 1 February 1865 in Cootehill, Cavan, Ireland. Cathy Corrigan told me that John remained a bachelor