see Poland Street 1 to 9 & 49 to 52 in London Addresses dataset
William Hickford ratebooks 52 Poland St 1784 / William Hackford apothecary of Broad St, St James voted Percy & Clinton 1774 / William Heckford apothecary Broad St Golden Sq 1758 administrator of Charles Des Clouseaux late Lt Governor of Carlisle / 1761 William Heckford prisoner for debt in Kings Bench prison formerly of Carnaby Market but late of Gt Windmill St, both in St James, victualler / directory 1785 Heckford & Furnivall apothecaries 52 Poland St / Morning Post 19.2.1784 Mr Heckford apothecary of Poland St son of William Heckford Esq of Twickenham married Miss Stroud of that place there, WH bach of St Pancras = Ann Stroud sp otp Twickenham 19.2.1784 / William Heckford of Twickenham Esq, JP for Middlesex, SunFire 1780, will PCC 1797 Twickenham mentioned wife Susanna son William dau Elizabeth sisters in law Elizabeth & Janett Heckford, two houses in Castle St, St Marylebone, Charlotte Scott spinster, friend & exec Benjamin Sutton Bradbury of Friern Barnet / Wm Heckford died 17.11.1797 (Star 30.11.1797) / Characters &c by William Heckford Esq publ by George Robinson 1787, & A Succinct Account of All Religions by William Heckford Esq publ by Minerva Press 1791 / William Heckford of Thaxted Essex apothecary will PCC 1741 / William Heckford = St James 22.9.1756 Susannah Duperron their son William bapt 30.3.1759 there / William Heckford of Upper Conway St age 53 was buried at St James 30.1.1814