The link between WF and the curate of Mixbury (1697) is tentative. It could also be Robert or John. But, given that William had just been ordained P and John was still D, it seems a plausible connection.
Foster: Freind, William, s. William, of Croughton, Northants, cler. Christ Church, matric 15 July 1687, aged 18; BA 1691, MA 1694, incorporated at Cambridge 1714, chaplain in the navy, rector of Turvey, Beds, 1705-45, rector of a mediety of Woodford, Northants, 1711-14, and of Thrapstons, Northants, died 15 Apr 1745; brother of Robert 1686 and John 1694. See Foster's Index Eccl; Rawl., v, 418; Alumni West. 208; DNB.