Family History and Genealogy Resources by Surname
Wishart Surname Origin
Some ancient writers say, that Robert, son of David, Earl of Huntingdon, took on him the cross, and distinguished himself in the Holy Land, where, from his gallant exploits against the Saracens, he received the name of Guishart, that is, Wise-heart, now Wishart.
Source: An Etymological Dictionary of Family and Christian Names With an Essay on their Derivation and Import; Arthur, William, M.A.; New York, NY: Sheldon, Blake, Bleeker & CO., 1857.
Wishart Surname Meaning and Family Facts
There is more to Wishart family history than the origin of your surname:
A Wishart Family History Thought:
'If man cares not for his roots, then how can he care for his branches?' --Doyle M Davis