those replies inspired me to add, have you seen
http://www.irishgenealogyhub.com/down/tithe-applotment-books/dromore-parish.php originals in PRONI Belfast its just a one line entry name and taxable home or land etc
Gibson, David Townland: Ballymacormick Year: 1834
Gibson, Geo. Townland: Backnamullagh Year: 1834
Gibson, George Townland: Ballymacormick Year: 1834
Gibson, Henry Townland: Ballymagendless Year: 1834
Gibson, Hugh Townland: Leapoks Year: 1834
Gibson, James Townland: Drumbroneth Year: 1834
Gibson, James Townland: Skillyscolban Year: 1834
Gibson, John Townland: Ballymacormick Year: 1834
Gibson, Joseph, Sr. Townland: Ballymacormick Year: 1834
Gibson, Mary Townland: Drumbroneth Year: 1834
Gibson, Oliver Townland: Drumskee Year: 1834
Gibson, Robt. Townland: Ballymacormick Year: 1834
Gibson, Thos. Townland: Leapoks Year: 1834
Gibson, William Townland: Ballymacormick Year: 1834
have you seen just less than 30 years later
http://www.irishgenealogyhub.com/down/griffiths-valuation/parish-of-dromore.phpGibson, Alexander L: Backnamullagh
Gibson, David L: Balleny
Gibson, David L: Ballymacormick N: David
Gibson, David L: Ballymacormick N: Will
Gibson, David L: Drummiller
Gibson, Elizabeth L: Drumskee
Gibson, George L: Balleny
Gibson, George L: Ballymacormick
Gibson, Henry T: Dromore - Hillsborough St
Gibson, Isaac L: Listullycurran
Gibson, James L: Drumbroneth
Gibson, James L: Skillyscolban
Gibson, John L: Edentrillick
Gibson, John L: Lappoges
Gibson, John L: Quilly
Gibson, Joseph L: Balleny
Gibson, Joseph L: Ballymacormick
Gibson, Mitchell L: Skillyscolban
Gibson, Robert L: Ballymacormick N: Will
Gibson, Robert T: Dromore - Hillsborough St
Gibson, William L: Backnamullagh
Gibson, William L: Ballykeel
Gibson, William L: Skeagh
Gibson, William, Jr. L: Ballymacormick
Gibson, William, Sr. L: Ballymacormick
try askaboutireland for much more detail on Griffiths including maps of townlands showing house boundaries if you are lucky then track a property owner/renter in PRONI continuation valuation books