« Reply #21 on: Saturday 08 September 07 19:28 BST (UK) »
I was hoping the spelling might have been 'Houten'

However, Young Daniel with a Scots/Irish accent and a registrar trying to understand it, who knows?? I do know a Houten and will ask the next time I see her , the pronunciation of the name from older generations. i.e. how they said it.
Plan B-- As a lot of Irish immigrants came to Scotland, either with or to, friends , family, or neighbours, there is a chance that the sponsors of the children born in Scotland and hopefully baptised in the local Catholic church, might give a clue. the following site might help you.
http://www.catholic-heritage.net/sca/genealogy.htmI know of 2 churches in Greenock, St Laurences, in the east end and and St Marys (central to West) , but I'm not familiar with Port Glasgow Catholic Churches of the period, indeed if there were any. My lot were married 1863 in St Laurences, this would be nearer to the Port.
Flynn,Cox, Slaven-Co Longford
Donnelly,McGeown,Hughes,McCrory- Co Armagh
Hargan,Curran,Bradley,Grant,Peoples ,Patton,Dunn-Donegal
Conway,Degnan,McDonald,Cassidy,Kelly,Fenmore,Ryans,Kilkenny,Murray-Ireland/England/Scotland
Reeves,Fox,Williams-Shropshire/Staffordshire/Scotland
Gill,Kane-I.O.M/England/Scotland
Murdoch,Bruce,Rankine,Ballantyne-Ayrshire
McCutchen,McAdam,Wright-Kirkcudbright,Dumfries,Ayrshire
And others
Plus all variations in spellings