"Liverpool: The docks". A History of the County of Lancaster: Volume 4. British History Online. 1911. pp. 41–43. Archived from the original on 2011-05-25. Retrieved 2008-03-24.
"Liverpool: The docks". A History of the County of Lancaster: Volume 4. British History Online. 1911. pp. 41–43. Archived from the original on 2011-05-25. Retrieved 2008-03-24.