Weir family names

[mcadamsd]

Attached appears to show Archibald Weir and his spouse Mary on the 1861 Canada Census. He shows as 71 and she as 70 which fits the information I have.  Both show birth Ireland which also fits.

Above them on the documents is what I believe is John  Weir age 26
Next person is "A Jane". Age 22 and married so assume John Weir's spouse. Unsure I am reading this correctly.  Can anyone suggest what this name could be?

Next seems to be Martha who is single and 28

The husband and spouse do not seem to fit what I believe I know.  Ages are off

The 1851 Census has an Archibald Weir in Middlesex County but  only lists the landholder not family