Jameson Family (Gunn or Stewart?)

[Luc1977]

Hello, my name is Luciano Doti and I live in Argentina.
One of my great-great grand fathers was Scottish, and his surname was Jameson. That surname is a sept of Gunn and Stewart clans, so I want to know which clan is mine.
My great-great grand father named William Jameson, He lived in Edinburgh, He studied Botanic and Chemistry, I think He was a professor; some of his papers are in Harvard University, exist a webpage in internet about him. He travelled to Ecuador and Argentina, in South America, in the 19 century.
If there is somebody who knows something about this branch of Jameson family, please tell me, I will be very graceful.

[Polwarth]

You have to trace back in your country - when you have discovered where he came from, that might give you a clue as to the Clan affiliation. If he originated from the clan area of the Stewarts, then an educated guess might be that his branch was a sept of the Stewarts - ditto the Gunns.

Are you aware that Jameson or Jamieson is also an Irish name?

[Luc1977]

I am sure he was scottish and he came to South America from Edinburgh.

[Polwarth]

Well, I suspect he may originate elsewhere in Scotland as Gunn is a highland/islands name. Stewart is a more complex matter. Apart from the highland Stewart clans, including Appin, Bute, Atholl, there were lowland Stewarts who were never members of any clan.

Until you find out the history of the man within Scotland, it would be hard to do more than stab a pin at a name and use that...

I also forgot to say that Jameson/Jamieson can also be an Irish surname. It is not impossible that the man was actually Irish, but living in Scotland!

[Luc1977]

This is my great-great grand father´s biography:

William Jameson was born in Edinburgh in 1796 and studied at Edinburgh's Royal College of Surgeons ca. 1814-1818. between 1818 and 1826, he made several voyages as a ship's surgeon, first to Baffin's Bay and later to South America. In 1826 he settled in Quitto, Ecuador, and in the following year he was appointed professor of chemistry and botany at the University there. He was made assayer to the mint in 1832 and director in 1861. In 1869 he went back to Edinburgh (by way of Argentina, to visit his sons), and returned to Ecuador in 1872. He died shortly thereafter.
Jameson carried out botanical investigations at Baffin's Bay in Ecuador, and in other South American countries; corresponded with Scottish and English botanists; sent plant specimens back to Great Britain (possibly elsewhere?); and published articles in a half dozen British and Scottish botanical journals. In 1864 he was appointed by the Ecuadorean government to write a flora of Ecuador. Volumes 1 and 2 of his Synopsis Plantarum Aequatoriensium (in Spanish) were published in 1865, but the work was not completed. [The British Museum has the text of the unpublished 3rd volume, p. 1-136; the U.S. Department of Agriculture Library has a Photostat of this.]
Jameson apparently also continued his studies of chemistry, as one would expect from his position as assayer to the mint. The biographical sources consulted did not mention any correspondence with chemists or any publications on chemistry, but the Gray Herbarium archives contain what appears to be a manuscript for a text on chemistry, probably never published.

Jameson, William, 1796-1873. Papers of William Jameson, 1827-1869: A Guide

[Polwarth]

It sounds to me that you might have more luck with old records for the Navy. I seem to recall they keep such records at Kew or Greenwich.

OR - find out in which parish of Edinburgh he was born and trace through the old parish records.

There is no way of finding out a clan until you find out where in the clan lands the ancestry of your family started - Edinburgh was not a clan area.

[Luc1977]

It´s OK. Thank you, Polwarth.