Rudolf Brueggemann, son of Louis Brueggemann (still with two "n"s) registered on June 5 and is shown to have been serving beginning August 26, 1918. He was discharged on Christmas Eve.
Headquarters Detachment 472 Engineers to Discharge Private Honorable discharge 24 Dec 1918. National Army LB 1
His registration card lists his profession as a Map Draftsman with Chas. W Root.. I am sure this skill was sought after in the Army. He was list as tall and slender. This particular registration card does not list next of kin. His record of service doesn't say where he was stationed other than Headquarters Detachment.