This is how Ancestry has transcribed the 1841 McNeil family you've found, Averill. It's Onchan, district 5, page 10 (I couldn't bring it up using Brian Lawson's index numbers for some unknown reason, but I found it by just entering "Clara, born 1840" )

The handwriting is so bad, it's almost illegible. The first name on the list looks like Jn McNeil, age could be 20 or 30, joiner. Wife is more like Magr than Mary, age 35. Then 3 boys, ages 6, 4 and 2, names written as shortened versions but look like squiggles. Then, in the female column, a 10 month old, also illegible, but could begin Cl. All born IOM. Hope this helps !

Jean C

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Name: Clara Meri
Age: 10 Mo
Estimated Birth Year: abt 1840
Gender: Female
Where born: Isle of Man, Isle of Man

Civil Parish: Onchan
County/Island: Isle of Man
Country: Isle of Man

Street address: View Image
Occupation: View Image

Registration district: Isle of Man
Sub registration district: Isle of Man
Neighbors: View others on page
Household Members: Name Age
Eth Meri 30
Mary Meri 35
Jo Meri 6
Wm Meri 4
Jno Meri 2
Clara Meri 10 Mo