I can't find Sam (yet) however, Eva Selina Frances SMITH birth registered St Olive Southwark (1d/201) March qtr 1891, mother's maiden name CARMICHAEL. She married Frederick Frank BOWDEN in 1912 at St Mary, Newington and says father's name was William, a dockworker.
This tallies with Leonora Ann CARMICHAEL married William John C SMITH at Lambeth (1d/591) March qtr 1888.
Other possible children:
Herbert William Mar qtr 1890 (Lambeth 1d/539)
Florence Cook Dec qtr 1893 (Camberwell 1d/861) [died Poplar 1c/127, Jun qtr 1895]
Horace John Mar qtr 1897 (Poplar 1c/691)