Undertakers of the Navigation of the Rivers Aire and Calder
>
Traffic Department's records
>
Acts and printed material kept by the department for reference
BW91/7/4/9
"Report on the Lighthouses, Lightships, Gas Floats, Buoys and Steam Vessels belonging to the [Humber Conservancy] Board, with staff in connection therewith by A. E. Butterfield [Engineer]"
Stamped "Aire & Calder Navigation Traffic Manager's Office, Leeds".
January 1910
BW91/7/4/9
1 volume