World War II draft registration card (front) of Gus J. Groos Jr. of San Antonio, Texas, aged 27, born 22 June 1913 at San Antonio, employed by Hugo Groos & Co., with his mother, Mrs. Florence Groos, named as the person who will always know his address.
Image · dated 1940-10-16 · source: U.S., World War II Draft Cards (Young Men), 1940-1947, National Archives, via Ancestry.com

How it is shown: Complete front of the card as supplied; no crop, no retouch.
Keep in mind: What the page says: Confirmed: serial number 837, order number 1415; 'Gus J. Groos Jr', age 27, born June 22, 1913, at San Antonio, Texas; employer Hugo Groos & Co., Alamo National Building, San Antonio (one digit of the street number is unclear); contact person Mrs. Florence Groos, mother. The registration date of 16 October 1940 comes from the index record, and the back of the card is not in this image. Whether this is our person: Confirmed: the birth date, the birthplace and the mother's name match the tree's Gus Julius Groos Jr. (born 1913) and his mother; the middle name appears only as the initial J.