Posted 20 November 2010 - 04:27 PM
I believe I found your man. There is a MIC for Sgt. Sydney T. Rew, 12002, Royal Scots, at the National Archives in WO 372/16.
The National Probate records for U.K. list Sidney Thomas Rew, born about 1890, with a death date of 1921.
The 1901 Census for England lists "Sidney Thomas Rew," born about 1890, in London, as living in London
at the time of the census. The BMD Birth Index lists the birth registration for "Sidney Thomas Rew" during the
3rd Quarter (July, August, September) of 1889, at St.Olave Southwark, London. Given the correct name, rank,
and unit in the MIC and the correct year of death in the probate records, this would appear to be your man.