see Poland Street 1 to 8 & 49 to 62 in London Addresses dataset
Elizabeth Masters 55 Poland St ratebooks 1793-4 / SunFire 17.3.1792 Elizabeth Louisa Masters spinster 55 Poland St / SunFire 1790, 1791 Elizabeth Louisa Masters 6 China St, Gower St / Elizabeth Louisa Masters ratebooks Grosvenor St, St Geo Han Sq 1799-1806 / The Fashionable Cypriad (1798) biographies of courtesans (Cyprus was island sacred to Venus) had chapter on Louisa Masters, said to have been born Sarah Marsden (perhaps bapt 7.12.1765 of William & Sarah Covent Garden or 2.12.1759 of John & Elizabeth St Geo Han Sq) taken into service by Mr M-d grocer of Broad St (see Maund, James) then set up by him at Queen St, Golden Square where she met Mr F-ch-r hairdresser (James Fletcher hairdresser Strand voted 1784 Hood & Wray, John Fletcher hairdresser Strand voted 1790 Fox, World 26.2.1791, SunFire 1793 James Fletcher 13 Chichester Rents, Chancery La, hairdresser & peruke maker, 4.11.1793 Middlesex Sessions James Fletcher hairdresser of Chichester Rents, Liberty of Rolls, parish of St Dunstan i t West stood bail for George Crosbie) then she lived in Poland St with an elderly cavalier, then was the mistress of Mr Ty-s-n, the Jew H-g-r of St Mary Axe, Captain F-ll-r, and "now" lived in Berkley St. According to her biographer she adopted the name Louisa Masters because of its elegance.