PETSOE, a hamlet in the parish of OKENEY, hundred of NEWPORT, county of BUCKINGHAM, 2 miles (S. B. by S.) from Olney. The population is returned with Emberton, to the church of which parish the inhabitants resort. This was formerly a parish, but the church, dedicated to St. James, having been demolished, the living, a discharged rectory, was annexed to that of Okeney. Petsoe still maintains its own poor, excepting those of Petsoe-End, who are supported by the parishioners of Emberton.