Hi: As far as where they would have left from, it
is wide open. Ayr, Irvine and Ardrossan, though small, were all important
ports at that time, and people left in quite small boats to emigrate. They all
handled a lot of import and export, so a few passengers could be squeezed in on
any boat going.
Also, railways were up and running and my ancestors
leaving in 1850 probably took a boat to Carlisle, and the train from Carlisle to
London and boarded their ( bigger) ship in London. That is what their
friends had done a year before them. They were all from the Irvine-Kilmarnock
area.
Terri in Canada