Family History and Genealogy Resources by Surname
Parson Surname Origin
We suppose that its first founder was a clerical character or parson. From the Latin Persona, that is, the person who takes care of the souls of his parishioners.
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.
Parson Surname Meaning and Family Facts
There is more to Parson family history than the origin of your surname:
A Parson Family History Thought:
'If you would not be forgotten,
As soon as you are dead and rotten,
Either write things worthy of reading,
Or do things worthy of writing.' --Benjamin Franklin, May 1738