http://www.mariners-l.co.uk/ON-94%2c999.htm I think this means knight of st George Loango is the same ship.
Ship whose official number is 87914
Name Port of registry and details Source
KNIGHT OF SAINT GEORGE Liverpool, 192/1883, Steam, 1973 tons Appropriation Books, RSS
Liverpool, 1883, Steam MNL, 1890
LOANGO London, 1891, Steam MNL, 1900
Built: 1883, Register closed: 1905