Hi Jenny
Here are a couple more possibilities. As Frances says, Robert could have claimed at his marriage to be younger than he really was because his wife Charity Matthews was born in 1842.
1841
Ballamoddah ? Malew
Ancestry’s transcription (Hendgson should be Hudgson):
Name Age
Ann Halsal 40
Robert Hendgson 19
Edwd Shimin 80
RH manservant on Elizabeth Mylchreest’s farm.
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From IGI --- (United Kingdom Merchant Navy Seamen) 2 versions of the same entry:
Name: Robert Hodgson
Event Type: Military Service
Event Year Range: 1845-1854
Event Place: United Kingdom
Birthplace: ISLE OF MAN
Birth Year: 1825
GS Film number: 1483242 , Digital Folder Number: 004620411
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Name: Robert Hudgson
Event Type: Military Service
Event Year Range: 1845-1854
Event Place: United Kingdom
Birthplace: Isle Of Man
Birth Year: 1825
GS Film number: 1483084 , Digital Folder Number: 004585118
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Someone with experience of accessing military/naval records might be able to find out more about this Robert Hudgson.
Jean C