Copy print of a portrait of Alexander F. Matthews in his uniform.

Letter from Henry Clay, Jr. to his family concerning his time spent in Oxford, England. He has visited many old buildings and churches but must prepare for his test on Vickers machine guns the next day.

Copy print of a photograph of a group of soldiers wearing life jackets while aboard ship. The description on the back of the photo says that they were "aboard ship going overseas." The men are hanging around one of the ship's large guns.

Postcard from Henry Clay, Jr. to his family back home in Texas regarding his current trip across the Atlantic Ocean. Clay does not say anything of great importance in this letter but was recovering from his recent sea-sickness.

Letter from Henry Clay, Jr. to his family back home mostly concerning his distaste for the living conditions in England, as well as his poor flight instructor. At the end of his letter he mentions that he will be changing addresses again.

Copy print of a photograph of a soldier in uniform and a part of a larger group photograph. According to the photo this soldier's name is Mooney.

Registration certificate to Floyd Stevenson acknowledging his submitted registration and telling him that he has been "duly registered this 5 day of June, 1917."

Photograph of Dr. J.E. Cooke wearing a military uniform, holding a medical bag and hat, and standing at the front steps of a house in Mart, Texas. A handwritten note on the back of the photo indicates that it is from the Stauts estate of Waco.

Photograph of the interior of the mess hall at Camp MacArthur, with long tables on either side of the narrow room, and some soldiers at the far end. A handwritten note on the back of the photo says "Mess Hall, Co. A 1st Wis. Inf., Camp MacArthur, Waco, Texas."

Postcard of three soldiers lying in a field and practicing with a machine gun. A handwritten note on the back of the postcard is addressed to Miss Mary Oakley in Madison, Wisconsin and says, "Dear Miss Oakley, Best wishes and regards to you from Kosma. We got here on Thursday noon. Everything all right here. I write to you soon. Kosma."

Photograph of four soldiers and a small dog standing in a street, with three of them holding watermelons on their shoulders.

Two letters from Henry Clay, Jr. to his mother and family. The first letter primarily concerns his living situation in Stamford, England along with a short discussion about his first real flight time. In the second letter Clay primarily talks about a rain-filled day and reading, along with him and his friend DeGarmo eating peanut butter.

Postcard of automobiles driving on a dirt road between rows of buildings at Camp MacArthur in Waco, Texas. A handwritten note on the back of the postcard is addressed to Miss Alma Blank in Beaver Dam, Wisconsin and says "Dear Friend - Received your letter and was very glad to hear from you. We have to go out on the shooting on the range. It is raining here a little tonight. Please send me your address when you go to Waupun. Will write a letter later. Billy."

Postcard of soldiers standing in a dirt road separating two long rows of large tents at Camp MacArthur in Waco, Texas.

Postcard of soldiers standing around a wash bucket holding dishes, with a long building in the background, and a note that says "Camp Life at Camp MacArthur, Waco, Texas." A handwritten note on the back of the postcard is addressed to F. P. Hansen in Thornton, Idaho and says "Dear Mother, Here is a picture of some of us boys washing our dishes. Where you see the x, that is me. It isn't very plain but that is me anyway. Show this to the folks so they can see how we hafto wash our own dishes in camp. Eugene."

Postcard of soldiers standing in line outside of the mess hall at Camp MacArthur in Waco, Texas. A handwritten note on the back of the postcard says, "Dear Sister, An idea of how we look when ready for the big eats. No wonder a fellow gets an appetite trying to get in the front of that line. About all you see is half, the rest are inside. Love to all, Jim."

Postcard of soldiers standing in a long line outside of a long building, with rows of buildings in the background. Text on the photo says "The mess line. Camp MacArthur, Waco, Texas." A handwritten note on the back of the postcard says "This is the mess or dinner line and the boys are always hungry. We at the infirmary eat 30 minutes before the others so our grub is always hot. Lovingly, Harry."