The Algeria-French Morocco Campaign began with the Invasion of North Africa on 8 November 1942 and terminated upon official cessation of all armed resistance of Vichy French troops three days later. He wouldn't have been a member of the 395th Infantry at the time inasmuch as the 99th Infantry Division - of which the 395th was an organic element - was organized in Mississippi only several days after the campaign and didn't arrive in the European Theater of Operations until almost two years later.
The information you've given obviously comes from his discharge certificate and suggests he may (I emphasize MAY) have been assigned (or attached) to either the 1st or 9th Infantry Division overseas. He may have returned to the U. S. with the 395th or may have been assigned to the regiment after returning from overseas. In either case, Service Company, 395th Infantry was simply the unit he was assigned to when he was processed out of service.
In the possibility he served with the 1st or 9th Division overseas, you can contact the following:
Society of the First Infantry Division 1933 Morris Road Blue Bell, Pennsylvania19422-1422 (888)324-4733 (Toll Free) e-mail: < email@example.com >
Cantigney 1st Division Foundation & Museum Robert R. McCormick Research Center (Both of the above perform research for a fee) e-mail: < firstname.lastname@example.org >
9th Infantry Division Association Route 5, Box 499 Conover, North Carolina28613
There's an unofficial 9th Infantry Division Association website at < http://www.webbergroup.com/ninth/http://www.webbergroup.com/ninth/ >. You can e-mail the webmaster at < email@example.com >
Perhaps one or more of the above can provide info and/or put you in touch with someone who served with him.