Hi bgressel - sorry I don't know your first name from your posting. Thanks for responding. As you say, Peter Grant the shoemaker having a sister Flora and Flora Grant(c1780-1827) being buried in the same cemetery as Peter Grant (1798-1850) seems to good to be true! But as ever, how to prove it...
Have you seen on the internet the mention of the following building in "Upper Canada Village": Shoemaker's House - this small one-room log house was built by John Grant a Loyalist who settled on Lot 25 Concession 2 Charlottenburg Township Glengarry County near Martintown. Building dates from arouund 1810.
Given the name John Grant, the occupation and the date of c1810, I wonder if this was Flora's husband at an outside chance..?
The only other (very general) observation I can make is that the first name Flora is found among the Grants in Glenmoriston, but appears to have come in via the Macdonells/Macdonalds. Perhaps Peter Grant senior (mentioned on Flora's gravestone) was married to a Macdonell. But of course I realise there are so many in Glengarry county let alone in the original Glengarry in Scotland!
I am working on a popluation list of Glenurquhart and Glenmoriston from all accessible records and so hopefully that will help researchers in future (myself included)!
As regards DNA, if one of your Grant-surname male cousins does decide to test, I would be pleased to assist (financially as well). As I may have mentioned, we can immediately ascribe a male line descent from the Chiefs of Grant if the cousin's markers match, and we now have male line descendants for the Sheuglie (Glenurquhart) and Corrimony (Glenurquhart) cadet families, a family from Blairie (Bhlaraidh - in Glenmoriston) traditionally an illegitimate line of Glenmoriston, as well as several families in Canada and the USA who seem to show Glenurquhart and Glenmoriston matches. So a Glengarry Grant would be ideal and potentially help your research. Do let me know.
Kind regards,
Peter F W Grant
(Chelsea, London, UK)