1846
Thomas Williams (Engineer) - Garnon Street
De Winton & Co. (& Boiler Makers) - Union Iron Works, Slate Quay
H. Owen & Son - Vulcan Foundry, Bank Quay
De Winton & Co. - Union Works
H. Owen & Son - Bank Quay
De Winton & Co. - Slate Quay
Humphrey Owen - Bank Quay
De Winton & Co. (& Makers of Mining Machinery) - Union Iron Works, Slate Quay
Thomas E. Morris - 4 East Twthill
H. Owen & Son - Bank Quay
De Winton & Co. Ltd. - Slate Quay
De Winton & Co. - Union Iron Works
H. J. Coleman - Bridge Street
De Winton & Co. Ltd. - Union Iron Works, Slate Quay
Thomas E. Morris - 4 East Twthill
H. J. Coleman - Bridge Street
Thomas E. Morris - 4 East Twthill