I've ordered a marriage cert with Jacob Moore and Rebecca (Brown) but it's in Daventry, Northants. That all I could find Ben.
Worth a try, as there was an Army Garrison just outside Daventry, at Weedon Bec, Northants.
But I ask myself, how would Rebecca get from Devon to Northamptonshire in the late 1840's, and why. Unless Jacob was stationed at Plymouth or Exmouth.
Steve.