I am a member of the Kirkheaton Family History Group who is researching the names on the Local War Memorial.  Alexander Stavert is listed on the memorial.  Detailed below is what our research has found to date.
Born      4 June 1884 at Hawick, Roxburgh, Scotland
Married      Jane Ann - , 
Parents      Alexander(b1839) & Margaret(b1842)
Siblings      Margaret E(b1867),Thomas(b1872),Elizabeth(b1874),John H(b1877)
Enlisted      living at 322 Greenside, Dalton? 
   Royal Navy (Volunteer Reserve)
   Ordinary Seaman - No London Z/9726
Army Records   Missing
Died   Died of Disease 6 October 1918 aged 34 at London General Hospital
Buried   1396 - Wilton Cemetry, Hawick, Roxburghshire
Further Information
Widow Jane Anne living at 5 Waverley Cottages, Hawick
Can you add to this research.
Many Thanks