David Graham
He died about 1270.

 Patrick Graham
Patrick was born in 1256 in Kincardine, , Perth, Scotland.  He died at the age of 40 on April 28th, 1296 in Dunbar, East Lothian, Scotland.

 David Graham
He died in 1297.

 John Graham
He died on July 22nd, 1298 in Battle Of Falkirk, Stirlingshire, Scotland.