If you do IGI "children searches" using the names Edward Kairin and Eleanor/Eleanor Hawkins, you find no children listed. If you do the same using Edward Kewin and Eleanor Hawkins, you get:
Results for: Any Event, 1838 - 1858, Isle of Man, British Isles
Father: Edward Kewin, Mother: Eleanor Hawkins
Exact Spelling: Off
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International Genealogical Index / British Isles - 2
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1. MARGARET KEWIN - International Genealogical Index
Gender: Female Christening: 06 JUL 1843 Saint Barnabas, Douglas, Isle Of Man, England
2. THOMAS KEWIN - International Genealogical Index
Gender: Male Christening: 01 JUL 1841 Saint Barnabas, Douglas, Isle Of Man, England
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So yes, as Sue says, it looks like a transcription error. Also, the fact that it's been submitted by a "patron" makes it iffy anyway.
Checking in 1841:
KEWIN Edward 27 Douglas 1465/4 19 31
In case you haven't found them, Ancestry has them as Edwn Kewin 27, Elwin Kewin 20 and Thos Kewin 4 months in Onchan, district 4A, image 16.
Jean C