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Repository
Lebanon County Historical Society
924 Cumberland Street, Lebanon, PA, 17042
Material Type
Personal Papers;Photographs and prints
Date
1918 – 1941
Description
  1. Letter to H. H. Barnhart, from the Chief of Infantry R. E. Longan, discussing weapons tests; 1922.
  2. Letter from H. H. Barnhart sent to Captain Kopper, Jr. with information detailing his service record and career history; n.d.
  3. Letter from H. H. Barnhart detailing his education and specialties; 1919.
  4. Photograph of the weapons invention proposed by H. H. Barnhart; 1922.
  5. Photograph of the weapons invention proposed by H. H. Barnhart; 1922.
  6. Photograph of invention attached to a Browning Machine Gun; 1941.
  7. Letter from H. H. Barnhart to Col. G. L. Anderson detailing early weapons tests of his invention.  Carbon copy of the letter included; 1918.
  8. War Department correspondence requesting the manufacture of two prototypes of H. H. Barnhart's invention; 1918.
  9. Envelope presented by Captain Barnhart to the Adjutant General of the Army; 1919.
  10. Letter to General Harris, from the Adjutant General of the Army, concerning the continuation of H. H. Barnhart's active duty classification after his hospitalization; 1919.
  11. Letter from A. S. Kreider introducing H. H. Barnhart to Colonel Hill, 1919.
  12. Letter from the Inventions Section of the War Plans Division, to H. H. Barnhart, detailing prototypes created by the ordinance department; 1919.
  13. Correspondence from the Inventions Staff to H. H. Barnhart on the Night Firing Device; 1918.
  14. Letter to H. H. Barnhart stating the merit of his night firing device from C. H. Hilton, Colonel of the Inventions Section; 1918.
  15. Letter to H. H. Barnhart on the forwarding of his correspondence to the Inventions Section from J. M. Wright, Colonel of Engineers; 1918.
  16. Letter to H. H. Barnhart on the importance of more information regarding his night firing device, from J. M. Wright, Colonel of Engineers; 1918.
  17. Office of The Chief of Staff Resume of Important Papers in The Day's Work; July 30, 1919.
  18. Blueprint of H. H. Barnhart's Night Firing Device; n.d.
  19. Blueprint of H. H. Barnhart's Night Firing Device with working example; 1918.
  20. Blueprint of H. H. Barnhart's Night Firing Device; n.d.