There is a Henry perry who dies in fyfield 1823, born c1763, which would fit in age reasonably with his marriage date. The only Henry I can find born at roughly the right time scale would be Henry perry b1762 great hallingbury. His father is richard and mother Elizabeth. Doesn’t help much with linking him to Abraham. There are Perrys in high ongar, fyfield, great hallingbury, Beauchamp roding. Maybe there’s just lots of them and it’s a common name. Maybe they’re loosely related rather than cousins?