Help needed deciphering unknown signatures!

I have been cataloguing letters this week and have come across two signatures that have left me stumped! I wonder if anyone out there can determine the names of the two correspondents?

The first signature (below) is from a letter written to Wallace from the Admirality Office on 15th November 1853 (ignore the superscript 'y' at the beginning of the signature – this belongs to the word before).


The second signature (below) is from a letter written to H. Norton Shaw (Secretary of the Royal Geographical Society) from the Admirality Office on 21st December 1853.


Any suggestions are gratefully received! Please email me at c.catchpole@nhm.ac.uk with any ideas.

Thank you!

-Caroline-