These are photos circa 1917-1919 of two sons of Nicholas Grindstaff Snyder (1863-1944) and his wife, Louise Jane Whittington (1863-1933). The family lived in Wilkes County, North Carolina, so I believe these photos were taken there.
Standing in the left photo is Russell Jess Snyder (1896-1984). Seated, and in the photo at the right, is John B. Snyder (1894-1969).
Jess registered for the draft on September 12, 1918, in Wilkes County. He was a single farmer of medium height and build with blue eyes and light hair. He never served in the military.
John registered on June 5, 1917 in Wilkes County. He was also a single farmer. He was tall, with a medium build, dark blue eyes and dark brown hair. He was initially in the 16 Company 4 Training Battalion 156th Depot Brigade until April 24, 1918. This company was in the 1st Battalion, 59th Infantry Brigade, 30th Division. He was initially sent to Camp Jackson, South Carolina, for training, where he and Tom met up.
 Ancestry.com. U.S., World War I Draft Registration Cards, 1917-1918 [database on-line]. Provo, UT, USA: Ancestry.com Operations Inc, 2005; card for Jess Snyder in Wilkes County, N.C.
 Ancestry.com. U.S., World War I Draft Registration Cards, 1917-1918 [database on-line]. Provo, UT, USA: Ancestry.com Operations Inc, 2005; card for John Snyder of Wilkes County, N.C.