birth certificated details: Alice salmon, born 21 july 1854 at 15 high row, Knightsbridge.Registration distr St Margaret Westminster.Father Thomas Salmon (iron bedstead manufacturer), mother Sarah Salmon, formerly Bartleman. Mother was informant and gave same address as birth. registered 8 Sept 1854. The birth had been previously registered on 5 Aug 1854 and mother signed as Alice Salmon which I assume was a slip-up.
Thomas Henry Salmon born 29 Dec 1852 at 27 Queen Street, Brompton, Kensington. Parents details same as for Alice, except that father registered birth and gave his address as the High Row address.
Sarah must have been staying at 27 Queen Street at the time. Have you come across this address before? I see that William (1807) Bartleman was at Yeomans Row, Brompton in 1851. Have you found any others in Brompton? I also found a George Bartholomew at 11 Queens St Chelsea in 1851, but this may be a red herring.
By the way, which 1841 and 51 censuses have you examined? The web site I recently subscribed to (I will not mention the name) only lists one Bartleman for '41 (John, West) and three for '51 (John, West; Robert, Lambeth; William, Brompton).
Will let you know birth details of Ellen Salmon when I find her. The first birth certificate that I previously sent for gave mother as Sarah Middleton and father Thomas Salmon (author).