The Heart of Texas Veterans Memorial Page (see below) provides some background:
Mr. William Edward Guyger, a single white male living in Proctor, Comanche County, Texas and being employed at the Proctor Merchantile Company as a salesman as of June 5, 1917. William was of medium height and medium build with black hair and brown eyes. Born in Proctor, Comanche County, Texas on June 13, 1886 to William A. and Olivia P. Guyger, and raised there in Comanche County, Texas. William and parents and siblings are found living in JP4 Comanche, County, Texas the 1900 census. I did not find William on the 1910 census. William's father died in 1914. William's mother is listed on his Army record as next of kin living in Proctor, Texas.
William was drafted into active federal service for the US Army on April 27, 1918 at Comanche, Texas. William Guyger was sent to infantry training at Camp Travis, San Antonio, Texas assigned to the 58th Company 15th Training Battalion 165th Depot Brigade. On June 25, 1918 Private Guyger was assigned to the Company F 34th Infantry Regiment in the 7th Infantry Division. Private Guyger was promoted to Private 1st Class on July 20, 1918 and two days later he was promoted to Corporal. William's regiment moved out to the port of embarkation in Hoboken New Jersey and boarded the transport ship to France on August 17, 1918 for the eleven day voyage to France. Only a few days after reaching France William's company entered the 15th training area near Ancy-le-Franc.
On September 30, 1918, the division moved to the vicinity of Toul, more training and equipping. This move was scarcely completed when the division was ordered to relieve the 90th Division in the line in the Puvenelle sector north of Toul, which was completed on October 11, 1918. The 7th division remained in defensive occupation in the Puvenelle sector from October 10, 1918 to November 9, 1918, during this operation Corporal Guyger was killed in action on November 3, 1918 near Lorraine, France. His mother was notified.
[Army] Corporal William E. Guyger was buried in a temporary grave there in France to be later repatriated to America. The Graves Registration Service of the US Army was William's new unit. The GRS did an awesome job during and after the battles of WW1. William's remains were loaded onto the USAT Wheaton on June 19, 1921 in Antwerp, Belgium and arrived in Hoboken New Jersey July 2, 1921. Then shipped July 29, 1921 by train to Proctor, Texas arriving August 3, 1921. William Guyger was laid to rest in the Proctor Cemetery, Proctor, Comanche County, Texas. Survived by his mother.
Corporal Guyger is buried next to his parents in the Guyger family plot, his final resting place marked by a white marble headstone which is pitched at the top and standing about five feet tall. The flag of the United States is complemented on each side by starred crosses with bells, and the inscription reads:
Cpl. W. E. Guyger
Co. F. 34th Inf. 7th Div.
Born June 13, 1886.
Killed in action in Toul sector,
Nov. 1, 1918.
The family name, "Guyger", is below the epitaph, which reads:
In God's celestial legions now enrolled,
Change we the azure star to gleaming gold.