Is there any sign of a Michael about?
Some more info from those D'Arcy baptisms, I am not great at reading the names of the sponsors
Jacobus, born 14 February 1843, sponsors Jacobus Brown, Carolina Darcy(?)
Edmundus, born 11 December 1845, Jacobus Darcy, Catharine Moran(?)
Margaret (something is written under Margaret), born 12 July 1851, William D'Arcy, Mary Macnaughton (or-en)
Jacobus, born 3 June 1853, Jacobus Darcy, Joanna Oday
Thomas, born 6 November 1855, Patrick OBrien (or Brien?), Ellen Driscoll
John Valentine, born 29 January 1861, Gulielmus Darcy, Catherina Darcy