Thanks for e-mailing the certificate...what luck

Transcription:
Catherine Sutherland
Female
76yrs
born Dunbrae, Dunbeath, Parish of Latheron, Caithness-shire
76yrs in Parish of Latheron
Father: Alexander Sutherland, farmer (deceased)
Mother: Janet Sutherland, maiden name Sutherland (deceased)
Married to: John Sutherland, Pensioner (second marriage)
Children:
From 1st Marriage - James Henderson 51yrs, John Henderson 49yrs
From 2nd Marriage - Alexander Sutherland 34yrs, Donald Sutherland 32yrs, William Sutherland (D)
Died: 30th April 1855 at 11pm, at Upper Achavrole, Dunbeath, Parish of Latheron, Caithness-shire
Cause: Rheumatism, 12 years, no medical attendant
Burial place: Churchyard of Latheron
Informant: Alexander Sutherland, nearest relative (present)
Registered: 2nd May 1855, Latheron
So you now have confirmation that Alexander was not an only child, he has a brother Donald Sutherland living and 2 half brothers James & John Henderson.
You also have the next generation back from Catherine Sutherland - her parents Alexander Sutherland and Janet Sutherland (nee Sutherland)....that is a few more Sutherlands to add to the list!
Also......According to the notes: "A great aunt of Alexander Sutherland (great grandfather of John Sutherland) was a chieftainess of Clan Sutherland and her health used to be publicly toasted at the Cross in Edinburgh" (how do you verify this?) Thank you for being in touch". I found the marriage for John and Cathrine/Katherine on the IGI.
I think the next step is to order the marriage from Scotland's People to be sure, though it may not have any other details. You may have to follow the Henderson boys to see if you can confirm the name of Catherine's first husband Mr Henderson.
Also, it would be near impossible to link these Sutherlands back to any chieftain or chieftainess of the Clan, there are many fanciful stories passed down the generations about Clan connections, some true...many false....most impossible to verify

Jenny