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Robert Mills (c1791-1849) optician of 49 Southampton Street, Pentonville and 35 Duke Street, Lincoln's Inn Fields
1841 Listed at 49 Southampton Street, Mills Robert, telescope maker.
1841 Living at 49 Southampton Street, St. James, Clerkenwell: Robert Mills (age c50), Optician. With Harriott Mills (age c30). Three other surnames at this address including Robert Mills (age c1).
1849 Will of Robert Mills, Optician of Clerkenwell, Middlesex.
1851 Their sons Robert (age 10) and Alfred (age 7) are listed at Park School, Totteridge, Herts.
1852 Listed at 49 Southampton Street, Mills Harriet (Mrs), telescope maker.
His wife Harriet re-marries but carries on the business of making telescopes at the same address
1861 Living at 49 Southampton Street, Clerkenwell: George Onwhyn (age 51 born Stratford, Essex), Wine merchant. With his wife Harriett Onwhyn (age 51 born Woolwich), Optician (Telescope Maker) and the step-children Robert Mills (age 20 born Clerkenwell), Assistant (Optician / Telescope maker); Alfred Mills (age 17 born Clerkenwell), Assistant (Optician / Telescope maker). Also Richard Tamsett (age 14 born Woolwich), a nephew. One servant.
Presumably the business is sold or closed between 1861 and 1871
1871 Living at 13 Russell Street, Covent Garden: George Onwhyn (age 61 born London), Wine Merchant. With his wife Harriett Onwhyn (age 61 born Woolwich). One servant.