Letter from Major General Robert R. Williams to The United States Army Primary Helicopter School congratulations on their 11th anniversary. On the back of the letter is a stamp giving the Boyce-Ditto Public Library's address.

Letter from Brigadier General Robert R. Williams to the U.S. Army Primary Helicopter School congratulating them on their 10th anniversary. He also briefly touches on the war in Vietnam. On the back of the letter is a stamp giving the Boyce-Ditto Public Library's address.

Handwritten letter from cartoonist Zack Mosley to Major Phillips, responding to a letter he received from the major. He writes that he has enclosed a drawing of his cartoon, Smilin' Jack. At the top of the letter is a stylized letterhead with Smilin' Jack's head and Mr. Mosley's signature. On the back of the letter is a stamp giving the Boyce-Ditto Public Library's address. The letterhead on the front is clearly visible from the back of the letter.

Letter from Mayor of Mineral Wells L. J. Varnell, Jr. to Colonel E. P. Fleming, Jr., congratulating the U.S. Army Primary Helicopter Center on their 11th anniversary. On the back of the letter is a stamp giving the Boyce-Ditto Public Library's address.

Letter from Lieutenant General T. W. Dunn to Colonel E. P. Fleming congratulating the U. S. Army Primary Helicopter School on their 10th anniversary. On the back of the letter is a stamp giving the Boyce-Ditto Public Library's address.

Letter from Chet Huntley, of NBC News to Major William D. Phillips congratulating the U.S. Army Primary Helicopter School on their 11th anniversaries. He briefly mentions the war in Vietnam. On the back of the letter is a stamp giving the Boyce-Ditto Public Library's address.

Letter from Eric Sevareid, of CBS News, to Major William D. Phillips congratulating the U.S. Army Primary Helicopter Center on their 11th anniversary. He also briefly touches on the war in Vietnam. On the back of the letter is a stamp giving the Boyce-Ditto Public Library's address.

Letter from Lieutenant General L. J. Lincoln to Colonel E. P. Fleming, Jr. congratulating the United States Army Primary Helicopter School on its 11th anniversary. On the back of the letter is a stamp giving the Boyce-Ditto Public Library's address.

Letter from Walter Cronkite, from CBS News, to the men of the U.S. Army Primary Helicopter School commending them for their work. He briefly touches on the war in Vietnam. On the back of the letter is a stamp giving the Boyce-Ditto Public Library's address.

Letter from Brigadier General Frank Meszar to the U.S. Army Primary Helicopter School congratulating them on their 11th anniversary. On the back of the letter is a stamp giving the Boyce-Ditto Public Library's address. There is a small, handwritten cursive note on the bottom left of the front the letter.

Letter from Major General Delk M. Oden to Colonel E. P. Fleming congratulating the U.S. Army Primary Helicopter School on their 11th anniversary. On the back of the letter is a stamp giving the Boyce-Ditto Public Library's address.

Letter from Colonel J. R. Duffy to the U.S. Army Primary Helicopter School congratulating them on their 10th anniversary. On the back of the letter is a stamp giving the Boyce-Ditto Public Library's address.

Letter from actor John Wayne to the U.S. Army Primary Helicopter Center, commending them on their work. He also briefly mentions the war in Vietnam. On the back of the letter is a stamp giving the Boyce-Ditto Public Library's address.

Letter from Walter Cronkite, of CBS News, to the U.S. Army Primary Helicopter School congratulating them on their 11th anniversary. He briefly touches on the war in Vietnam. On the back of the letter is a stamp giving the Boyce-Ditto Public Library's address.

Letter from Colonel Arnold A. Berglund to the U.S. Army Primary Helicopter School congratulating them on their 10th anniversary. On the back of the letter is a stamp giving the Boyce-Ditto Public Library's address.

Letter from U.S. Army General W. C. Westmoreland to Colonel E. P. Fleming congratulating him on the 11th anniversary of the United States Army Primary Helicopter Center. The General commends the Colonel on the the Center's work and touches on the war in Vietnam. On the back of the letter is a stamp giving the Boyce-Ditto Public Library's address.

Letter from retired General Hamilton H. Howze to Captain William F. Gabella congratulating the U.S. Army Primary Helicopter School on their 10th anniversary. On the back of the letter is a stamp giving the Boyce-Ditto Public Library's address.

Letter from Igor I. Sikorsky to Major William D. Phillips congratulating the U.S. Army Primary Helicopter Center on its 11th anniversary. In a post-script, he mentions that he has enclosed a photograph with the letter. On the back of the letter is a stamp giving the Boyce-Ditto Public Library's address.

Letter from U.S. Representative Jim Wright to Major William D. Phillips congratulating the U.S. Army Primary Helicopter Center on their 11th anniversary. He also briefly touches on the war in Vietnam. On the back of the letter is a stamp giving the Boyce Public Library's address.

Letter from U.S. Representative Omar Burleson to Colonel E. P. Fleming, Jr. congratulating the U.S. Army Primary Helicopter Center on their 11th anniversary . On the back of the letter is a stamp giving the Boyce Public Library's address.

Letter from Retired General Mark W. Clark to the U.S. Army Primary Helicopter School congratulating them on their 11th anniversary. On the back of the letter is a stamp giving the Boyce-Ditto Public Library's address.

Letter from Eric Sevareid to Captain William F. Gabella, congratulating the U.S. Army Primary Helicopter School on their 10th anniversary. He also briefly mentions the Vietnam War. On the back of the letter is a stamp giving the Boyce-Ditto Public Library's address.

Letter from General Omar N. Bradley to Captain William F. Gabella commenting on the 10th anniversary of the U.S. Army Primary Helicopter Center. He apologizes for not replying to the Center's request for comments, citing being out of the city for a month as his reason. He also briefly mentions Vietnam. On the back of the letter is a stamp giving the Boyce-Ditto Public Library's address.

Letter from Texas Governor John Connally to the U.S. Army Primary Helicopter School, congratulating them on their 11th anniversary. On the back of the letter is a stamp giving the Boyce-Ditto Public Library's address. There is a small handwritten note at the bottom of the page that reads, "7."