see Poland Street 1 to 9 & 49 to 62 in London Addresses dataset
Derby Mercury 25.4.1793 Mr Hannam attorney Poland St bankrupt / Richard Hannam & William Stacey Law List 1794-1800 61 Poland St attorneys / Middlesex Sessions Aug 1793 Richard Hannam of Poland St Soho witness to signature / Richard son of Richard & Elizabeth Hannam bapt 24.2.1760 St James / Richard son of Richard Hannam & Ann bapt 10.8.1793 St James