Newspaper clipping showing four pictures of the "Captains of Four Companies of Texas National Guard Mustered in Yesterday." The captains of the companies are: S. A. Stewart, Arch C. Allen, Ben H. Smith, Frank Wozencraft; also included is the envelope that the clipping was delivered in to Ensign June Yates.

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 two soldiers leaning out of the windows of a train traveling through a field. A handwritten note below the photo says "On way to Waco."

Photograph of a man in a military uniform standing in front of a line of tents, with more soldiers in the background. A note at the bottom of the photo says "Rec'd from Waco."

Postcard of soldiers shooting cannons in a field, with the caption, "Bat. D. 119th F.A. in action. Camp MacArthur, Waco, Texas." A handwritten note on the back of the postcard is addressed to Mr. and Mrs. J. Claude Hill in Hartford, Michigan and says, "Dear Folks, Am getting along fine. Can limp around without my crutches. I am listed as a cannoneer and will be one of this bunch on the other side when I get well enough I expect! Will write you a letter soon. Loving son [?]."

Postcard of a soldier wearing a military uniform and hat. Handwritten text on the front of the photo says "121 - U.S. H.A." A handwritten note on the back of the postcard says "To my sweetheart Charlotte- Lots of love and kisses from yours. Hans."

Photograph of Phil Blanchard wearing a military uniform and hat and standing in an open field. The photo was taken at Camp MacArthur in Waco, Texas.

Photograph of soldiers reclining and sitting on cots at Camp MacArthur, with rows of tents in the background.

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.

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."

Photograph of the grave marker at Henry Clay, Jr.'s burial site. The cross reads: " Henry R. Clay 1-Lt. HQ. 3 A. A. Ser." There is a large number of crosses in the background behind Clay's.

Letter from Henry Clay, Jr. to his mother back home regarding the recent letter that he received from her and his flying training that he will soon be starting. Part of his letter also concerns the well-being of others back home and the recent "discord in the family."

Copy print of a photograph of Jock Baird standing next to Henry Clay, Jr. Baird is on the left and wearing a military jacket and a kilt, Clay is on the right and wearing his military uniform.

Copy print of a photograph of pilot Trollope, of Squardon 43 of the Royal Air Force. Trollope is wearing his uniform and standing outside of a small building.

Copy print of a photograph of three men working on a monoplane in Turnberry, Scotland. One man is working on the tail of the plane while the other two are working near the front. This plane was a part of the Royal Air Force.

Letter from Henry Clay, Jr. to his family concerning a recent crash he had while flying. Most of the letter is a summary of the incident but the end of the letter he says that he hopes to finish his thirty flight hours by Christmas.

Letter from Henry Clay, Jr. to his family back home concerning his stay in Oxford, England. He tells about the weather changing to Autumn, bringing cold and dampness; Clay also says that he might be going to Egypt to begin flying there.