| Commanding Officers | |||
| J.G Bower | 1910 | ||
| J.F Hutchings | 1913 | ||
| Lt. R.D. Sandford | 1915 | ||
| Lt I.S. Jefferson | 1917 | ||
Ordered under the 1908/1909 building programme, C34 was laid down on 29 March 1909 and launched
on 8 June 1910 by Mrs Ommanney, wife of the Admiral Superintendent, Rear Admiral Robert N. Ommanney.
When WW1 started, C34 was part of the Fourth Flotilla in Dover and under the command of Lt. J.F. Hutchings.
In January 1915 C34 was operating from Harwich with orders to entrap German Submarines acting from Ostend
and Zeebrugge.
C34 was lost with all hands in July 1917 when she was sunk whilst on the surface off the Shetlands. Records vary as to the identity of the German U boat
attributed with the sinking. Most show U52, however U74 is also named.
The history of this submarine is still being researched.