Earliest name recorded seems to be Wautier Pieressone in 1296.
MacPherson was sometimes written M’A’Phaarsoin and as the "Mac" was dropped, Pearsoin likely merged with Pearson 1645. Derivitives are: Pairsone, Pearsone, Peirsonde, Peirsone, Peirsound, Pesirsaunde, Persone, Peyrsoune, Peyrson 1480.
The Pearson family (also spelt until the 18th century, Pierson, Piersone, Peirsoun, Pieressone, Perysoun and Person; where son was spelt as "sonne") originated in Northumber, England where some members still live at this present time. The origin of the name was Pier’s son, ie. the son of Piers. The Pearson name originated from "Son of Pierre", the French form of Peter.
The first Pearson was Wautier Pieresoune, who was mentioned in 1226 in the Ragman’s Roll as Pledging Alliegance to Edward I, King of England. Edward Pearson of Bamburgh was alive in 1506.Other Pearsons appearing in early print were David Perisone 1369, David Perysoun 1375, Johannes Peryson 1408, John Perison or Peryson 1473, Sandie Peirsoun 1567 and Archibald Pierson 1642.
In Great Britain : 64 156 people share the surname Pearson according to our estimation. The surname Pearson is the 111th most common name in Great Britain.
The Armstrong Story