And another DNA success?

This one is much more tentative, but nonetheless very interesting for me.
One of my genealogy mysteries, aka brickwall, is the parentage of Amelia MILLAR, my 2*great grandmother.
Her granddaughter provided the information that her mother was "a Miss Chrystal", Amelia's death cert, the information that her father was a James MILLAR and that she was born in Kippen, Stirlingshire.
Sum total of "known" information as to her origins.
DNA matches to date have indicated that there might be some Irish connections in there somewhere, but nothing has given me a "BINGO" moment.
This however has just come close.
As a DNA addict, I've tested at all three main genetic genealogy companies: FamilyTreeDNA, 23andme, and Ancestry.
The latter drives me potty as it simply does not provide the information necessary to confirm where you match, just provides  an indication of the strength of your match, and a link to the test takers' trees.
The match can be anywhere, or nowhere, on such trees and without a chromosome browser to show you what segment of dna you share, and who else shares that segment of inherited DNA with you, it's guesswork.
Which is where the wonderful independent site, run by a dedicated group of volunteers, http://GEDMatch.com, comes in.
If only all my Ancestry matches would upload their data there, I'd be happy.
Enough of a rant.

So why am I excited by an ancestry match that I know nothing much about yet?
The attached tree had a MILLAR of Kippen in it, and around the right timeframes.
It gets better.
Their ancestor was a Jane ROBERTSON bap. 1811 St Ninians, married (1835 Fintry) a George HUTTON born Lochwinnoch (Renfrewshire), and emigrated to Quebec between about 1847 and 1851.
Jane's parents are shown as Duncan ROBERTSON & Margaret MILLAR who married 1798, Kippen.
Which rang bells.
My research into the family differs from that on a couple of ancestry trees, and is more exciting!

The last time I dug around to see what might now be available for MILLARs and CHRYSTALs around Kippen I found a death cert. for a Margaret MILLAR who just happened to be married to a Duncan ROBERTSON, and had the fortune (for us) to die in 1855, the year civil registration started in Scotland, where the certs for that year have a wealth of information on them.
Yes, a daughter Jane was shown as aged 44 on the certificate (as was a son James Chrystal ROBERTSON).
I've not yet found any other candidates than the emigrant Jane for Duncan and Margaret's daughter Jane, and the naming pattern of Jane and George's children "fits".

Who were Margaret MILLAR's parents?
A David MILLAR and an Elizabeth CHRYSTAL.
Research back then had shown David and Elizabeth also had a son James of an age to have had a daughter around 1817. Pity Amelia's death cert. provides no hints as to her father's occupation. This one was a mason, dying a pauper in 1863, no indication that he had been married. Back when I found him last year, I couldn't find him in the censuses. Still looking for earlier than 1861 now.

Anyway, the family of Duncan and Margaret (MILLAR) ROBERTSON, and some of the CHRYSTALs of Kippen have now been included in my WorldConnect database LornaFishing.
I'd LOVE to hear from any descendants who have undertaken DNA testing and work with them to explore an potential hints to see if this is indeed the line where my ancestry dna match belongs.