The passenger list of the Petrel is on Ancestry (free this weekend).
Archibald is stated to be aged 27, a farm labourer.
Also Margaret (24), Anne (22) and Sarah (20).
The girls are said to be from Ballyborough (?) Co. Cavan, and Archibald from Killincare (again, I think that's what it says), Co. Cavan.
His parents are Robert and Hannah, both deceased, and they are all C. of E.
Margaret's mother is recorded as Anne rather than Hannah.
Bev.