The only other 9 year old Henry Quine I can find in 1861 is born in Douglas, son of Robert Quine of HM Customs, born K Onchan. Address 1 Buck's Rd, Douglas. Mother Margaret.

Of the Malew family, William, Elizabeth, John & Thomas show up in the IGI as son of Wm Quine & Esther Cubbon, Henry's IGI entry just says William Quine and Elizabeth. It would be useful to look at the register entry to see what it actually says, and if Elizabeth is written, was it by the same person that recorded the other children's baptisms.

Eldest daughter Margaret seems to be daughter of Esther Cubbon & Richard Kinvig c.14 Feb 1835 Arbory. Esther Cubbon's marriage to William Quine is given as 7th Feb 1835 Arbory. I notice there is a burial for a Richard Kinvig in Arbory in Jan 1835, but his age is given in Brian's index as 49 which makes him about 14 years older than Esther, if that was Margaret's father.