see Poland Street 1 to 9 & 49 to 62 in London Addresses dataset
SunFire 1798 Martin Haberer 57 Poland St gent / 1800 Martin Haberer 57 Poland St ratebooks / presumably the Mr Aberer tailor who had Luigi Bartolomichi (QV*) arrested for a debt at 37 Poland St on 15.3.1800 which resulted in Bartolomichi's death. Aberer's foreman Charles Ledeka (QV*) was also involved / 1818 House of Lords an Act to naturalise Martin Haberer (Nat Arch HO 1/13/6) / Martin Haberer = St James 1795 Ann Atkinson their son Martin bapt 4.6.1796 there / Atkinson v Haberer (Nat Arch E 133/13/43 & 44)