This is a strongly Yorkshire locational name, meaning 'of Bainbridge', a township in the parish of Aysgarth, North Riding, Yorkshire 'Bain' is derived from the Olde English 'Brycg', hence, 'the bridge over the straight river'. William Bambridge was christened on 19th May 1613 at Filey, Yorkshire, while another spelling of this name is Banbrigge, as seen in the recording of Nicholas Banbrigge's marriage to Dorathie Fuller on 31st January 1585 at St. Margaret's, Westminster, London. A George Bainbrig was christened on 24th October 1580 at Romaldirk, Yorkshire. The first recorded spelling of the family name is shown to be that of Matilda de Baynbrigg, which was dated 1301, Subsidy Rolls of Yorkshire, during the reign of King Edward I, Hammer of the Scots, 1272 - 1307. 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.