The family name Pyson is just one spelling of the family name since the late 1700s in Kent in SE England. We have THIRTY variant spellings since that time and a proven family tree with around 1100 entries around the world.
We are trying to confirm one generation and when this has been done, the 'tree' goes back to 1609.
We have earlier records than this as far back as 1203 and the family name derives from Jutes who arrived in Kent in 500/600 AD. The Jutes came from north Germany or Denmark.
If you would like to discuss this further, please drop me an e-mail and we'll take it from there.