Fiery Face is my 15th great grandfather. As far as I know I have two lines to him.
The documentation and proof is provided by Elgenstierna, a monumental genealogical work accumulated and edited by genealogist Gustaf Elgenstierna, that covers all the noble families introduced at the Swedish House of Nobility in Stockholm, as well as the work by genealogist Ulf Larsson, himself a descendant of James II, who has corrected the incorrect assumptions in Elgenstierna in relation to the Stuarts.
James II of Scotland is your 17th great grandfather.
You
→ Roger Sheldon Scott
your father → Charles MacDonald Scott
his father → Isabel "Isa" Partrick
his mother → William MacDonald Partrick
her father → Abigail Matilda Johns
his mother → William Stout Zornes
her father → Catherine Zornes
his mother → David Stout
her father → Jonathan Stout
his father → Richard "Squan Dick" Stout
his father → Elizabeth Stout
his mother → John Crawford, Gent.
her father → Jane Crawford, heiress of Crosbie Estate
his mother → Elizabeth Cunningham
her mother → William Cuninghame, 6th Earl of Glencairn
her father → Lady Janet Hamilton
his mother → James Hamilton, 1st Earl of Arran
her father → Mary Stewart, Countess of Arran
his mother → James II of Scotland
her father