Thank you for the nice compliment - it was actually when I found the entry for Oliver Laware with Lavois shown as well that I thought to ook under that name too.
I am certainly nowhere near being a pro, but I have been doing family research for many years and there are some things I would mention that might help you in your further research.
1.think of alternate spellings for the surnames you are searching - for instance in census records the census taker likely wrote down the names the way they sounded to him rather than asking how to spell them. Also in other records as you have seen with the Lavois/Laware family . So if you don't find people under the name you expect try other possible spellings. Another possibility is that the family themselves changed the spelling of their name at some point.
2. think of alternate first names - for instance Elizabeth could be Eliza, Liza, Beth, Bessie, Lizzie etc.And for a name like Jane as you have she could be listed as Jean (as I found in my family) or you could even try James as it could be that the person doing the indexing reads the name incorrectly. Sometimes people will be listed in census records under a nickname or under initials only (which can make it difficult) My g-grandmother was Cynthia Annette Browning and I have found her as Syntha, Anetta, Nettie, Netta and surname as Brown, Brawning. Luckily her father seemed to always be listed as Jasper or J.C.
3. Look for them under a different religion - your Jospeh Lavois showed up in death records of the Presbyterian Church even though all census show he was Catholic. This may be because his wife was Presbyterian.
4.If you cannot find the person you are looking for in census records, try looking under their siblings names if you know them. I have found this can also work for births - if you find one or more of the siblings it can give you an idea of where your ancestor may have been born - if you didn't know already.
5. Use various databases - familysearch.org is very good and I have sometimes found a record there when I could not find it anywhere else. But again - you need to think of those various spellings.
6. sometimes records will not be where you would most expect them to be. For instance your Susan Laware's death record is in Hemmingford - but it says she was wife of George Kingsbury of Morris, NY and then says she died at home. I assume home was Morris NY but it seems they brought her body back to Hemmingford for burial. So, if you did not know she was from Hemmingford, you might look for her burial in Morris, NY. (By the way she is in 1920 census for Mooers, Clinton, NY, so not sure which spelling is right, Mooers or Morris.
You said it was now confirmed the family was from France, but I don't know as so far they are all from Quebec - when it says Canada, French in census the French means Quebec usually.
But it is very likely they came from France at some earlier time. I am trying to find Joseph with parents to see where they came from.
I found the Baptism for Jane since you gave her parent's names.
It says Daughter of Robinson McIntire of Hemmingford, farmer and Margaret his wife, was born on the 28th day of May last past and was baptized by the name of Jane on the 12th day of July 1837 in the presence of the undersigned. William Robertson, John Marlin, Robert Lyttle
Quebec, Vital and Church Records (Drouin Collection), 1621-1967 about Jane mcIntire Name: Jane mcIntire Event: Naissance (Birth) Baptism Year: 1837 Baptism Location: Hemmingford, Québec (Quebec) Place of Worship or Institution: Presbyterian Church and Church of England
I have tried to find Jane in 1851 with no luck - and following all of my own suggestions above - I must be missing something but not sure what. I have tried under first names only for Robinson, Margaret and Jane and under Macintire, Macintyre, Mcintire, Mcintyre . I also tried under Robert in case Robinson was called by that name (as i see Jane had a son Robert)
There is a birth/baptism for a Jenny McIntire in Hemmingford 1836 - daughter of William and Ann- same church as Jane so I suspect that William is somehow related - perhaps a brother of Robinson ?? I looked for them in 1851 census but again did not find them. So I am stuck with ideas to find any of the Mcintires in 1851. Frustrating as they must be there somewhere.
I was doing some googling (another source of info) and found this:
04-13-1902 Jane McIntyre, Widow of the late Joseph Laware, died at Hemmingford PQ, age 65 years. Deceased's bother was killed at the battle of Odelltown.
too bad it doesn't give her brother's name, but at least we now know there was a brother. I googled Battle of Odelltown and it seems that it was in 1838- since Jane was born about 1837 her brother must have been quite a bit older.
It is in French but here is part of what it says. Here is part of what it says:
"Battlefield of Odelltown In abiding memory of Captain Donald McAllister, James Allen, Thomas Durham, Martin Flowers, Robert et William McIntyre, killed; Lewis Bartlett, William Durham, William Kidd and Hiram Odell, wounded in action, and of their brave comrades of the royal militia of Canada who fought here on November 9th, 1838.
So two Mcintyre men killed. I wonder if Robert could be Robinson ?I also wonder if the William Mcintire - father of Jenny (born 1836) is this same fellow.I had thought that William likely to be a brother to Robinson, but now I think he may be his son.
Or it could be that these two - William and Robert were brothers? Would need more info to know for sure how they fit, but from the entry on Jane it does seem that at least one is her brother.
I did not find the burial records for these two men who died at Odelltown.
Since Jane was born 1837 her mother would have been alive at the time, but I cannot find any mention of her in the Quebec records. But then, in Quebec quite often women are listed under their maiden names and we don't know hers - or do you?
I tried looking in the records for Hemmingford Presbyterian Church and Church of England for any Margaret who died between 1837 and 1877 for a first try but there are so many I really would need a surname. Many of them are Scottish names.