Corlust is in the civil parish of
BALLYMORE ,
I started with a couple of extra parishes
1796
Flax Growers of Irelandfrom
http://www.failteromhat.com/flax/armagh.phpGreer Isabella Loughgilly Armagh
Greer James Ballymore Armagh
Greer James Loughgilly Armagh
Greer John Ballymore Armagh
BALLYMORE from
http://www.irishgenealogyhub.com/armagh/tithe-applotments/ballymore-parish.php#.V1bQWVeoc5S entries found for either name.
Greer, David - Townland : Corlust Year : 1830
Greer, Moses - Townland : Corlust Year : 1830
Greer, Samuel - Townland : Corlust Year : 1830
I have since discovered
Ballymyre tithes exist with townlands similar to Ballymore see
http://www.connorsgenealogy.com/Armagh/BallymyreTithes.htm all dated 1827
Conn Thomas Aghincurk Ballymyre Armagh
Conn Samuel Aghincurk Ballymyre Armagh
Conn William Cloghreagh Killevy Armagh
Conn William Duvernagh Killevy Armagh
Conn James Ballintemple Ballymyre Armagh
Greer, Robt. Ballintemple
next I would be checking out church records at PRONI downloadable arranged by civil parish or
next
I would go to
Griffith-Valuation. [1864?] the quick index that gives townlands is
http://www.failteromhat.com/post1845.phpConn Thomas Aghincurk Ballymyre Armagh
Conn Samuel Aghincurk Ballymyre Armagh
Conn William Cloghreagh Killevy Armagh
Conn William Duvernagh Killevy Armagh
Conn James Ballintemple Ballymyre Armagh
Conner Joseph Cloghoge Contd Killevy Armagh
Connor Sarah Drumintee Killevy Armagh
Connor Maurice Tullyhugh Ballymore Armagh
Connor Francis Ellisholding Killevy Armagh
Connor Jno Ellisholding Killevy Armagh
Connor John Aghayalloge Killevy Armagh
Connor John Cloghoge Contd Killevy Armagh
Greer Thomas Ballygorman Loughgilly Armagh
Greer Robert Drumgane Loughgilly Armagh
Greer John Cornagrally Loughgilly Armagh
Greer James Cornagrally Loughgilly Armagh
Greer John Ballysheil More Ballymore Armagh
Greer Mary Ballysheil More Ballymore Armagh
Greer James Ballysheil More Ballymore Armagh
Greer Henry Ballysheil More Ballymore Armagh
Greer Charles Ballysheil More Ballymore Armagh
Greer Moses Ballysheil More Ballymore Armagh map ref 31 also Has Mary Greer living in his owned blgs
Greer Moses Corlust Ballymore map ref 15 also has Mary Hamilton living in his owned blgs
Greer William Corlust Ballymore Armagh needs investigating
Greer Thomas Druminure Ballymore Armagh
Greer William Tullylinn Ballymore Armagh
Greer Thomas Ballysheil More Ballymore Armagh
Greer Jane Duvernagh Killevy Armagh
Greer George Duvernagh Killevy Armagh
Greer John Cloghinny Killevy Armagh
Greer Archibald Tullyhappy Killevy Armagh
Greer Archibald Mullaghglass Killevy Armagh
next I would look up each of these in the detailed version of
http://www.askaboutireland.ie/griffith-valuation/ I would find each persons details and map ref and look up the map ref.. then look up the map offered and plot the homestead . next I would jump to google maps, satellite view enlarge to the point street scenes are seen and move up and down roads that were possibly used by the ancestors for fun and information about where they lived
next will be church records etc
hoping thats a start for you