Found his enlistment record:
ARMY SERIAL NUMBER 33949287
NAME YURKONIS#JOSEPH#A
RESIDENCE: STATE 32 PENNSYLVANIA
RESIDENCE: COUNTY 107 SCHUYLKILL
PLACE OF ENLISTMENT 3288 NEW CUMBERLAND PENNSYLVANIA
DATE OF ENLISTMENT DAY 16
DATE OF ENLISTMENT MONTH 06
DATE OF ENLISTMENT YEAR 44
GRADE: ALPHA DESIGNATION PVT# Private
GRADE: CODE 8 Private
BRANCH: ALPHA DESIGNATION NO# No branch assignment
BRANCH: CODE 02 No branch assignment
FIELD USE AS DESIRED # #
TERM OF ENLISTMENT 5 Enlistment for the duration of the War or other emergency, plus six months, subject to the discretion of the President or otherwise according to law
LONGEVITY ### ###
SOURCE OF ARMY PERSONNEL 0 Civil Life
NATIVITY 32 PENNSYLVANIA
YEAR OF BIRTH 26
RACE AND CITIZENSHIP 1 White, citizen
EDUCATION 3 3 years of high school
CIVILIAN OCCUPATION 992 Undefined Code
MARITAL STATUS 6 Single, without dependents
COMPONENT OF THE ARMY 7 Selectees (Enlisted Men)
CARD NUMBER # #
BOX NUMBER 0730 0730
FILM REEL NUMBER 1.247 1.247