see Poland Street 19 to 44 in London Addresses dataset
Morning Herald 9.12.1786 ad M Howard (female) clear starcher, gauze washer, silk stocking cleaner & working milliner 37 Poland St / just possibly SunFire 1817 Margaret Elizabeth Howard 52 Old St dressmaker & milliner / presumably a subtenant of James Bine (QV*) and/or John Mills (QV*)