While there are 2 baptisms for John Thistlethwayte, son of Rich. Thistlethwayte in Dent, Yorkshire around the same time (1679 and 1682), the other 2 Richard Thistlethwayte's who were married in Dent, Yorkshire around this time were both married in 1679, so it is likely that the 1679 baptism belongs to John, son of Richard and Margaret Thistlethwayte.
