Author
Frazer, William, d. 1905, artist
101
Ordnance Survey of Ireland
60
Great Britain. Ordnance Survey
18
Ordnance Survey (Ireland)
9
O'Flanagan, Michael, 1876-1942
4
O'Donovan, John, 1809-1861
2
Ordnance Survey (Ireland). Coimisiún Logainmneacha
2
Andrews, John Harwood, 1927-
1
Bradley, John, 1954-2014
1
Clarke, Howard B.
1
Colby, Thomas, 1784-1852
1
Fewer, Michael
1
Great Britain. Royal Commission Appointed to Inquire into the Facts Relating to the Ordnance Memoir of Ireland
1
Herity, Michael
1
James, Henry, Lt.-Gen., Sir, R.E., F.R.S.
1
MacCloskey, John
1
O'Keeffe, Tadhg
1
Taylor, George, fl. 1841-1850, surveyor, engraver
1
Thomas, Avril
1