This is a dialectual variant of Chadwick from any of the places so called, for example Chadwick in Lancashire, Warwickshire and Worcestershire. The name derives from the Olde English pre 7th Century personal name Ceadda (Ceadda was the name of an Anglo-Saxon bishop, later St. Chad), plus the Olde English "wic", a dairy farm or settlement. The surname is first recorded in the early half of the 13th Century, (see below). In 1328, one, Andrew de Chadewyke appears in the 1328 "Chartulary of Whalley Abbey". One Varney Shadrach married Mary Traveller on February 15th 1810 at St. Leonards, Shoreditch. Richard Butler Shadrach married Esther Burgoyne on May 25th 1816 at St. Antholin Budge Row, London and Richard, son of Richard and Esther Shadrach, was christened on January 23rd 1820 at St. Pancras, Old Church, London. The first recorded spelling of the family name is shown to be that of Richard de (of) Chadelswic, witness, which was dated 1221, The Assize Court Rolls of Warwickshire, during the reign of King Henry 111, The Frenchman 1216 - 1272. Surnames became necessary when governments introduced personal taxation. In England this was known as Poll Tax. Throughout the centuries, surnames in every country have continued to "develop" often leading to astonishing variants of the original spelling.