I went back to the sugar refiners web site and cross referenced the list Rob had made
of names to watch for. Several matches. Similar names, but I'm not sure they're matches.

CRAWFORD George - - Balfour St Port-Gl'g'w 1777 Hutcheson
CRAWFORD Hugh - - Glebe Sugar House, Clarence St (Refinery 5) Greenock 1812 Hutcheson
CRAWFORD Samuel - Crawford, King & Co Balfour St Port-Gl'g'w <1789 Hutcheson
CRAWFORD William - - Balfour St Port-Gl'g'w 1777 Hutcheson
CRAWFORD William - Henry Tate Syrup Silvertown London <1890 Ronald Crawford - family research
CRAWFORD - - Crawford & King - Glasgow 1783 Hutcheson

DOUGLAS, Robert - - - Leith 1695 Hutcheson

Steel's - several, but only in the late 1800's and 1900's.

WAYMAN George - (21 Eyre St Hill, Holborn) London 1820-77 Peter Towey - family research

WILSON, Alex Greenock 1765 Fairrie,1
WILSON, Alex Greenock Sugar House Co Sugar House Lane (Refinery 1) Greenock 1765 Hutcheson
WILSON, Alexander Sugar House Lane Greenock 1765 Deerr
WILSON, Benjamin Chester 1767 Cheshire Wills
WILSON, James Alston St Refinery Glasgow 1866-68 Hutcheson
WILSON, John Sugar House Lane (Refinery 2) Greenock 1788 Hutcheson

Next, I cross-referenced the Marriages of Alex's children with the sugar data.

Some Watts families, but all too late to be relevant.

PALMER - - Flinn & Palmer 107 Temple St Bristol 1775 Sketchley's Bristol Directory

JACKPOT !!! THIS IS BOGLE'S EASTER SUGAR HOUSE

PATERSON, James - - Easter Sugar House, Glasgow 1799> Hutcheson
There are other Paterson's, but they're all in the 1800's.

Priest - There are 2 but they're in the mid 1800's

CARTER, John - - Garlick Hill London 1754 Kents Dir 1754

CARTER - - (see Baker, William) London <1751 Complete Newgate Calendar, Vol III

YOUNG, Alexander - - - Aberdeen 1776-98 Hutcheson
YOUNG, Thomas - Kerr St (Refinery 8) Greenock 1831-36 Hutcheson
YOUNG, William - - - Aberdeen 1776-98 Hutcheson

That "Kerr St." may bear more research given our Kerr connections.