Your James born Co Down in the 1911 census in the original Household Return (Form A) is aged 69 so b 1841-2 he cant read, he’s leaves his mark, his occupation was changed from Car Man to Car Driver.. note as far as he couldn’t read or write see
your James in the 1901 census is aged 55 so b 1845-6 there is a signature somewhat blotted. the same source says he can read and write and he is a Car Properiter
I think this means the local taxi using horse and trap etc
Margaret nee Watt is 48 b ~ 1853 Ayr the census for Ayr 1851 from Genes Reunited exists and includes two possibles if she was older than the census suggests
eg Margaret b 1849 Monkton Ayrshire daughter of David Watt b 1812 Colmonell Ayrshire, a carter. m Jane Watt b 1824 Dundonald Ayrshire, the family living in
Portland Lane , Troon
eg eg Margaret b 1850 Ardrossan Ayrshire daughter of John Watt b 1817 Steventon Ayrshire weaver and Mary Jean b 1819 Ardrossan Ayrshire, living in Windmill Street Ardrossan
you could Contact a library seeking when did james first appear in Bray Co Wicklow directories etc. write to one or other
1. Bray Branch Librarian: Fiona Scannell
Email: FScannellatwicklowcoco.ie
2. Ciara O'Brien, local history
Wicklow County Library Headquarters,
Email: caobrienatwicklowcoco.ie
CO DOWN
I looked unsuccessful for James Sloan[e] b ~ 1847 in Co Down amongst the 70 + James Sloan entries in
http://freepages.genealogy.rootsweb.ancestry.com/~rosdavies/SURNAMES/S/SloanAJ.htmI then reached the stage of wondering why he had gone to Wicklow eg a namesake is listed but wrong generation eg one entry in Ros Davies
James SLOAN . ? born Co. Down; a labourer ; a Protestant; aged 21, joined the Royal Irish Constabulary (service #4446) in 9 Feb 1840 ; posted to Co. Kildare then Donegal in 1851 & Co Louth in 1858; married a woman from Donegal 17 Jul 1854 FHL # 856058
Sloan/Sloane in Co Down Griffiths valuation by civil parish in 1860s
see
http://www.failteromhat.com/post1845.phpAghaderg Sloan Sloane
Ballyphilip Sloane
Bangor Sloan
Blaris Sloan
Clonallan Sloan Sloane
Clonduff Sloane
Comber Sloan Sloane
Dromara Sloan
Dromore Sloan
Drumballyroney Sloan Sloane
Drumbeg Sloan
Drumbo Sloan Sloane
Drumgath Sloan
Drumgooland Sloan
Dundonald Sloan
Dunsfort Sloan
Garvaghy Sloan
Grey Abbey Sloan
Holywood Sloan Sloane
Inch recheck
Kilbroney Sloan Sloane focus parish for Sloane
Kilcoo Sloane
Kilkeel Sloane focus parish for Sloane
Killinchy Sloan Sloane
Killyleagh Sloane
Kilmore Sloane
Knockbreda Sloan Sloane
Loughinisland Sloan Sloane
Magheralin Sloan Sloane
Newry Sloan Sloane
Newtownards Sloan Sloane
Rathmullan Sloan
Saintfield Sloan
Seapatrick Sloan
Shankill recheck
Tullylish Sloan Sloane
Tullynakill Sloan
Warrenpoint Sloan
or grasping at straws, if named after his father and spelt only as Sloan
Sloan James Church Street,Holywood Holywood Down
Sloan James Strandtown Holywood Down
Sloan James Cromac Ballymacarret The Paved Road Knockbreda Down
Sloan James Cromac Ballymacarret Campbell's Row Knockbreda Down
Sloan James Finnard Newry Down
Sloan James Greengraves Newtownards Down
Sloan James Aghavilly Clonallan Down
Sloan James Bridge End Hill,Lisburn Blaris Down
Sloan James Rathgill Bangor Down
Sloan James Ballyvarnet Bangor Down
Sloan James Lackan Drumballyroney Down
Sloan James Balleny Dromore Down
the marriage certificate would help you break through, its great work by dathai
good luck