Derived from the middle English 'dowle' itself a derivative of the early German 'dovel', this interesting name is job descriptive for 'a maker of dowels' i.e. pegs and bolts without heads, much used in early building construction and furniture. The name development has included Roger le Douler, c. 1325 in Worcester, whilst Hugo de Doole was found in Surrey in c. 1280. In this case 'doole' referred to a large marker stone shaped like a peg. In 1762 Sarah Dowlie and George Dowler were recorded in London, whilst in 1679 one John Doole or Dooler was a soldier in Barbados in the company of Capt. John Thurburne. The first recorded spelling of the family name is shown to be that of John le Doulare which was dated 1275 The Pipe Rolls of Worcestershire during the reign of King Edward 1 the 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.