CIVIL WAR:
        Michigan Regimental Rosters
        Michigan Veterans of the Civil War Burial Sites

Official Records of the Union and Confederate Navies in the War of the Rebellion.
Hosted by Cornell University. Browse or search the contents.

The War of the Rebellion: a Compilation of the Official Records of the Union and Confederate Armies.
Hosted by Cornell University. Browse or search the contents.

KOREAN:

Michigan Casualties of the Korean Conflict (NARA)

VIETNAM:

Michigan Casualties of the Vietnam Conflict (NARA)

Vietnam Veterans Memorial Wall (Searchable)

MISC:

Medal of Honor Recipients

Purple Heart Recipients

Sons of Union Veterans of the Civil War: Upper Peninsula

Veteran Ancestor Registry
      -for all locations but I have linked to Michigan here.