Looking for applicatons filed under HIS name or initials, there is nothing for either Sanders or Saunders
Looking for applications filed under HER name or initial, there is nothing for Sanders or Saunders
Looking for applications applied for by members of the 18th MS Infantry, under Sanders or Saunders, there is only one and the husband's and wife's name are nowhere near the names of your Meredith J. and Elizabeth: it was applied for by Mrs. W.C. Sanders whose husband was listed as William Craig Sanders of the 18th MS Infantry.
Sorry this search through Betty's Pension Listing were not more productive for you.
If you are unsure of the last name, as your note suggests, then provide me with a third alternate name spelling and I will be glad to do a lookup for you.
Dennis