The WWI Letters of Robert E. Schalles
- September 30, 1917
- October 7, 1917
- November 25, 1917 – Sis
- November 25, 1917 – Pa
- November 28, 1917
- November 29, 1917
- January 17, 1918
- February 1, 1918
- March 10, 1918
- March 30, 1918
- April 8, 1918
- April 12, 1918
- May 10, 1918
- May 12, 1918 – Mother’s Day
- June 10, 1918
- June 11, 1918
- June 16, 1918 – Father
- June 16, 1918 – Brother
- June 30, 1918
- July 11, 1918
- July 17, 1918
- August 10, 1918
- August 18, 1918
- October 8, 1918
- November 12, 1918
- December 29, 1918
- January 1, 1919
- January 7, 1919
- January 18, 1919
- February 5, 1919
- February 7, 1919
- February 8, 1919
- February 26, 1919
- March 26, 1919
- March 30, 1919
- April 2, 1919
- April 15, 1919
- May 11, 1919 – Mother’s Day
- May 18, 1919 – Sis
- May 18, 1919 – Father & Mother
- May 23, 1919
- June 1, 1919
- July 2, 1919
- July 10, 1919
- August 10, 1919