John Allerton
It is generally assumed that Mayflower passenger John Allerton was related in some way to well-known Mayflower passenger Isaac Allerton: perhaps a brother. If that is the case, then he was likely born at East Bergholt, Suffolk, England.
On 25 June 1615, the Leiden City Counsel transferred a building plot to John Allerton, carpenter, for a bond of 11 guilders per year. He was required to build a house on the property within six years. The house sold on 4 May 1618. On 15 July 1620, right before departing Leiden, he sold a house built by Philippe de Lannoy for 2500 guilders.
John Allerton apparently was married, as he buried a child at St. Peters in Leiden on 21 May 1616. His residence was stated to be the Pieterskirkhof, which is the same place of residence as Isaac Allerton. However, when he voyaged on the Mayflower, he came alone. Governor William Bradford, writing in 1651, informs us that John Allerton intended to return to Leiden to help others in the church prepare for their voyages over, but his death the first winter at Plymouth prevented those plans from being fulfilled.