Hiya, could it be the Harry Boxall who was born in 1870 in India who you think might be the child of you Harry who married Charlotte [ but was already a widower]. He would be 30 in 1900
phew! I'm confused now 
Household:
 Name  Relation Marital Status Gender Age Birthplace Occupation Disability 
 Caroline BOXALL   (Head)   U   Female   13   India   Scholar     
 Maud BOXALL   (Sister)   U   Female   5   India   Scholar     
 Harry BOXALL   (Brother)   U   Male   11   India   Scholar     
 Percy BOXALL   (Brother)   U   Male   9   India   Scholar     
 Claude BOXALL   (Brother)   U   Male   3   India        
~~~~~~~~
Source Information:
  Institution   "Barracks" Winchester 
  Census Place Winchester, Hampshire, England 
  Family History Library Film   1341301 
  Public Records Office Reference   RG11 
  Piece / Folio   1233 / 139 
  Page Number   21 
Margaret 
