[Note 679.1] Brocklebank family made their money through shipping [i]. The General Steam Navigation Company was formed in 1824 by Thomas Broclebank and W' J. Hall. The company expanded rapidly [ii] Brockelbank's Thames paddle steamer Eagle provided a service between London and Margate. [iii]

References:

[i] http://www.newbonfamilyhistory.com/page38.html
[ii] Dix Frank L. 1985 Royal River Highway (London, David & Charles) pp.54-56
[iii] https://en.wikipedia.org/wiki/General_Steam_Navigation_Company

[Note 679.2] Beadmore probably the Scottish shipwrite of that name.

[Note 679.3] It was built by Evenden at Deptford, and in the 1840s was running to Havre. In 1855 it was ... http://www.crouchrarebooks.com/prints/view/the-rhinebeck-panorama