The Somervilles I'm thinking off would never have touched coal! ;>)>

Came across one reference to an earlier Somerville RN:
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Vice Admiral Philip Horatio Townsend Somerville RN married on 1 May 1849 Mary Stewart (who died on 1 June 1895), daughter of David Maitland M'Gill Crichton of Rankeilour, Co Fife, and died on 12 May 1881 leaving three sons.

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The Townsend became Townshend and was incoporated into the name of the village.

Regards

p.s. Source of that quote is: http://www.astro.wisc.edu/~townsend/tree/record.php?ref=506