Ask away Mel

You cannot just go on assumptions and guesses. For what you have here (and all research of this type really

), you need hard facts and verifications along the way.
Samuel has been more straightforward (!), I think bizarrely with Jessie, it will be down to the signature. Amazing, I know. There is nothing else so far that will fix her from what we have for her so far.
As we had as a summary for Samuel, for Jessie:
1901: Family of Robert Burnett and Margaret Kennedy in 1901 listed above. A Jessie Burnett showing as 3 years old.
1915: Marriage entry for Jessie Burnett (to David Graham) that we have been discussing before. Snippet again with signatures of Jessie and David G.
1922: We have a snippet from Rebecca's 1922 birth, with parents' signatures, Jessie Burnett and Samuel Stewart.
1932: Second marriage for Jessie Burnett. Same Jessie as we had from 1915, confirmed from her parents' details. Married a Cyrus Miller Alexander, a merchant seaman aged 35.
1983: This Jessie died I think in 1983 at the age of 83 on record in Saltcoats, Ayrshire.
Missing here would be 1911 census and also Jessie birth cert from c. 1897-8.
Monica