Using the relationship finder:
Deborah (Sampson) Gannett and Henry Samson are both descendants of John Samson.
1. Deborah is the daughter of Jonathan Sampson Jr [unknown confidence] 2. Jonathan is the son of Jonathan Sampson [unknown confidence] 3. Jonathan is the son of Isaac Sampson [unknown confidence] 4. Isaac is the son of Abraham Sampson [unknown confidence] 5. Abraham is the son of Lawrence Sampson [uncertain] 6. Lawrence is the son of John Samson [unknown confidence] This makes John the fourth great grandfather of Deborah.
1. Henry is the son of James Samson [confident] 2. James is the son of John Samson [unknown confidence] This makes John the grandfather of Henry.
Thanks for the star, Rubén.