Here are some of the things I learned from the registration cards.
Hugo John Stahl was 35 years old and lived at 1136 Concord, Detroit, Wayne, Michigan. He was born on 5 May 1885 and was married to H. Barbra Stahl. He worked in the service claims for Saxon Motor Company. He had blue eyes, brown hair, a medium height and build.[3]
[1] "World War I Draft Registration Cards, 1917-1918," images Ancestry.com (http://search.ancestry.com/iexec?htx=View&r=an&dbid=6482&iid=MI-2032496-2181&fn=Albert+Thomas&ln=Stahl&st=r&ssrc=&pid=32135737 : accessed 10 March 2012), card for Albert Thomas Stahl, order no. 200, Local Draft Board 18, Wayne County, Michigan; roll: 2032496.
[2] "World War I Draft Registration Cards, 1917-1918," images Ancestry.com (http://search.ancestry.com/Browse/view.aspx?dbid=6482&path=Michigan.Detroit+City.18.S.1001 : accessed 10 March 2012), card for Frank Joseph Stahl Jr., order no. A985, Local Draft Board 18, Wayne County, Michigan; roll: 2032496.
[3] "World War I Draft Registration Cards, 1917-1918," images Ancestry.com (http://search.ancestry.com/Browse/view.aspx?dbid=6482&path=Michigan.Detroit+City.18.S.1002 : accessed 10 March 2012), card for Hugo John Stahl, order no. A3193, Local Draft Board 18, Wayne County, Michigan; roll: 2032496.