Lynn

These are all the possibilities for your Margaret Jane Bridson who were on the IOM in 1841:

1841 census index

BRIDSON Margaret 20 Malew 1464/4 25 17
BRIDSON Margaret 20 Malew 1464/4 30 1
BRIDSON Margaret 15 Castletown 1464/5 30 21
BRIDSON Margaret 15 Malew 1464/4 36 14
BRIDSON Margaret 15 Malew 1464/4 43 4
BRIDSON Margaret 15 Marown 1464/6 29 4
BRIDSON Margaret 12 Malew 1464/4 45 8

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My top possibility is this one:

1464/4/36/14

1841
Malew 6/7
Ballacrink

Name Age
Wm Bridson 55
Elenor Bridson 45
Elizebeth Bridson 23
Elenor Bridson 23
Robt Bridson 18
Margt Bridson 15
John Bridson 13
Ann Bridson 8

(William Bridson, farmer, and Eleanor alias Radcliffe --- married 7th Oct 1810 Malew)

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some of the baptisms extracted from parish reg for children of William Bridson and Eleanor Radcliffe:

10. WM BRIDSON - International Genealogical Index
Gender: Male Christening: 28 JUN 1812 Malew, Isle Of Man, England

11. ROBT BRIDSON - International Genealogical Index
Gender: Male Christening: 03 NOV 1822 Malew, Isle Of Man, England

12. ANN BRIDSON - International Genealogical Index
Gender: Female Christening: 20 NOV 1831 Malew, Isle Of Man, England

13. ELIZTH BRIDSON - International Genealogical Index
Gender: Female Christening: 30 AUG 1818 Malew, Isle Of Man, England

14. ELINOR BRIDSON - International Genealogical Index
Gender: Female Christening: 30 AUG 1818 Malew, Isle Of Man, England

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This could be the eldest sibling in 1841 with his wife, Margaret:

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1841
Malew 4/1
Silverburn
William Brideson 28 blacksmith
Margaret 25
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and this could be your Mgt Jane with her brother Wm in 1851:

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1851
Malew 5/3
Ballachrink
mistranscribed by Ancestry:
Name Age
William Berelson 38
Margaret J Berelson 25

WB head widr 38 blacksmith b Malew
MJB sister unm house serv b Malew

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In 1851 these are all the Margaret Bridsons in their 20s:

BRIDSON Margaret 29 Patrick 2523 94 53
BRIDSON Margaret 28 Arbory 2526 201 24
BRIDSON Margaret 27 Braddan 2525 392 3
BRIDSON Margaret 27 Braddan 2525 429 44
BRIDSON Margaret 26 Castletown 2526 161 18
BRIDSON Margaret 26 Douglas 2525 153 157
BRIDSON Margaret J. 25 Malew 2526 81 11
BRIDSON Margaret 23 Braddan 2525 434 88
BRIDSON Margaret 23 Marown 2523 284 60
BRIDSON Margaret 22 Santon 2525 496 6

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There's only one listed with a middle name initial of J, and she turns out to be the one listed above with her brother William.

Jean C