Photocopies of casefile contents are currently requested by submitting NATF Form 85 to the National Archives and Records Administration, Attn: NWCTB, 700 Pennsylvania Avenue, NW, Washington, D.C. 20408-0001. You can request NATF Form 85 by submitting your name and postal address, the form number (NATF Form 85), and the number of forms you require (limit 6 per request) to email@example.com.
At ancestry.com they have the pension index with images.There are many John Baker I found on with a widow of Theresa M. Baker if this is your John Baker you may want to contact the above for more information.Many times there is great information in the files.Pictures, dates of birth - parents names - children's names. details of how they were killed or injuried.This will cost about $35.00 to get this file. If you know the widows name I may be able to find your John Baker in this index. Sarah Bitter