I searched for Roland and George but only found Roland. If this is him go to the NARA website and access the AAD, Electronic Army Serial Number Merged File, 1938-1946.
When you enter his name do it as Potvin#Roland It took me ages to work this out!
Then apply for his records to the National Personnel Records Center, St Louis, Missouri you can request online http://vetrecs.archives.govhttp://vetrecs.archives.gov
ARMY SERIAL NUMBER31139729 NAMEPOTVIN#ROLAND#T######### RESIDENCE: STATE13MASSACHUSETTS RESIDENCE: COUNTY005BRISTOL PLACE OF ENLISTMENT1306BOSTON MASSACHUSETTS DATE OF ENLISTMENT DAY18 DATE OF ENLISTMENT MONTH07 DATE OF ENLISTMENT YEAR42 GRADE: ALPHA DESIGNATIONPVT#Private GRADE: CODE8Private BRANCH: ALPHA DESIGNATIONBI#Branch Immaterial - Warrant Officers, USA BRANCH: CODE00Branch Immaterial - Warrant Officers, USA FIELD USE AS DESIRED# TERM OF ENLISTMENT5Enlistment for the duration of the War or other emergency, plus six months, subject to the discretion of the President or otherwise according to lawView LONGEVITY### SOURCE OF ARMY PERSONNEL0Civil Life NATIVITY13MASSACHUSETTS YEAR OF BIRTH09 RACE AND CITIZENSHIP1White, citizen EDUCATION22 years of high school CIVILIAN OCCUPATION157PHOTOGRAPHER, RETOUCHING ARTIST MARITAL STATUS6Single, without dependents COMPONENT OF THE ARMY7 CARD NUMBER# BOX NUMBER0399 FILM REEL NUMBER3.120
Good luck in your search. I had such help from the most wonderful Louie on this forum.