Thank you
'Heywood', so thats a red herring for sure. Nevertheless here are 54 possible John Cowan to overview the problems facing "
michaelcharles' this list is a combination of two sources harnessing the only other census substititute The Tithe Applotment Books, wnich are deemed incomplete,biased, etc etc But they exist in simple one liner entries giving the tenants name location and quality of land in irish avres. Like current Ireland the records have been divided, and this list combines the 6 NI county parishes with the 26 county parishes.
the result is 54 locations for John Cowan. Your John Cowan
might be among them
abbreviations used
IGH = Irish Genealogy Hub. They
http://www.irishgenealogyhub.com/ have thankfully indexed by parish the names in NI parishes, which in turn has been indexed by me, both with errors. The original books being in PRONI Belfast.
NAI= National Archives Of Ireland.Dublin They
http://titheapplotmentbooks.nationalarchives.ie/search/tab/home.jsp have the index lists and the further wording of the original entry.
The list is arranged by county, then townland
Cowan, John Townland: Bellahill Year: 1833 Kilroots Antrim IGH
Cowan, John Townland: Ballinacard Year: 1825 Skerry Antrim IGH
Cowan, Jno. Townland: Rathcavan and Tullog Year: 1825 Skerry Antrim IGH
Cowan, Jno. Townland: Carrenbrock Year: 1833 Templecorran Antrim IGH
Cowan, John Townland : Marmacullen Year : 1830 Ballymore Armagh IGH
Cowan, John Townland : Corliss Year : 1828 Creggan Armagh IGH
Cowan, John Carlifs 1827 Creggan Armagh NAI
Cowan, John Corliss 1827 Creggan Armagh NAI
Cowan, John Townland: Dunlarge Year: 1825 Keady Armagh IGH
Cowan, John Townland: Drumhillary Year: 1827 Tynan Armagh IGH
Cowan, John Drumboe 1826 Annagelliff Cavan NAI
Cowan, John[Jno] Ballintemple 1828 Ballintemple Cavan NAI
Cowan, John Townland : Cloughole Year: 1835 Faughanvale Derry IGH
Cowan, John Townland : Greenan Lower Year: 1835 Faughanvale Derry IGH
Cowan, John Townland : Greenan Upper Year: 1835 Faughanvale Derry IGH
Cowan, John Ramelton 1834 Aughnish Donegal NAI
Cowan, John Ramelton 1834 Aughnish Donegal NAI
Cowan, John Cloughfin 1826 Taughboyne Donegal NAI
Cowan, John Tonagh 1826 Taughboyne Donegal NAI
Cowan, John Townland: Ballygorianbeg Year: 1834 Clonduff Down IGH
Cowan, John Townland: Tammary Year: 1834 Clonduff Down IGH
Cowan, John Townland: Meenon Year: 1828 Aghaderg Down IGH
Cowan, John Townland: Portaferry Gardens Year: 1827 Ballyphilip Down IGH
Cowan, Jno. Townland: Ballymacrattymore Year: 1829 Donaghmore Down IGH
Cowan, John Ballymageraghty 1828 Drumgooland Down NAI
Cowan, John Townland: Ballymagenahy Year: 1829 Drumgooland Down IGH
Cowan, John Townland: Slievenalargy Year: 1829 Kilcoo Down IGH
Cowan, John Townland: Ballylough Year: 1829 Killmegan Down IGH
Cowan, John Townland: Ballydown Year: 1828 Seapatrick Down IGH
Cowan, John Townland: Ballymagenahy Year: 1828 Seapatrick Down IGH
Cowan, John Townland: Tullyeare Year: 1828 Seapatrick Down IGH
Cowan, John Tl:Craghan Yr: 1829 Magheracross Fermanagh IGH
Cowan, Jno. Tl: Aughnacloy Yr: 1827 Carnteel Fermanagh & Tyrone IGH
Cowan, John Drumkeelan 1833 Kiltubbrid Leitrim NAI
Cowan, John Carra 1833 Granard Longford NAI
Cowan, John Charlestown Mill Holding 1825 Kilbride Meath NAI
Cowan, John Kilcoursey 1825 Kilbride Meath NAI
Cowan, John Kilcoursey 1825 Kilbride Meath NAI
Cowan, John Kilcoursey Sub Highgate 1825 Kilbride Meath NAI
Cowan, John Charles Town 1826 Kilbride [Offaly] King's NAI
Cowan, John Kilcoursey 1826 Kilbride [Offaly] King's NAI
Cowan, John Kilcoursey 1826 Kilbride [Offaly] King's NAI
Cowan, John Kilcoursey 1826 Kilbride [Offaly] King's NAI
Cowan, John Kilcoursey 1826 Kilbride [Offaly] King's NAI
Cowan, John Kilcoursey 1826 Kilbride [Offaly] King's NAI
Cowan, John Ballicknahee 1830 Kilcorkey Roscommon NAI
Cowan, John Esker 1824 Youghalarra Tipperary NAI
Cowan, John Tl: Tannagh Yr : 1825 Aghaloo Tyrone IGH
Cowan, John Tl: Tannagh Yr : 1837 Aghaloo Tyrone IGH
Cowan, Jno. T: Barny Cross Y: 1825 Desertcreat Tyrone IGH
Cowan, John Tl:Craghan Yr: 1829 Magheracross Tyrone IGH
Cowan, Jno. Tl: Aughnacloy Yr: 1827 Carnteel Tyrone & Fermangh IGH
Cowan, John Ballyvalden 1833 Ballyvaldon Wexford NAI
Cowan, John Ballyvalden 1833 Ballyvaldon Wexford NAI
The only other suggestion is to check all further census in England in case he visits a last time or son manages to add in place in ireland where he was born on his original entry before enumerator would have reduced it to ireland
good luck