Hello Maggie,

According to Brian Lawson's 1861 census index: www.iomfhs.im/lawsons/census/c61-s.html there is a William Starkey aged 10 in Ramsey:
STARKEY Mary Ann 28 Ram 4429 17 113
STARKEY Mary Ann 3 Ram 4429 17 113
STARKEY William 30 Ram 4429 17 113
STARKEY William 10 Ram 4429 17 113

That 1851 census entry you mentioned was Bride, by the way, not Maughold.

Sue