I just got the Individual Deceased Personnel File for Henry (34 pages). Henry was born 14 Dec 1923. Date of entry into service: 19 Jan 1943. Religion: Catholic Father was Chris Markowski Brother was Boris Markowski. They were living at 2654 Chipman, Detroit, MI as of 1944 and in 1949, 3005 Lawton Ave, Detroit.
I haven't found either of them in any US census. His father isn't one of the two families in Detroit in 1930 with a son Henry. I found a Chris Markowski SS Death Index entry born 15 Feb 1883, died June 1969 Detroit, MI. Two items for a Boris: US naturalization petition 1942 in Detroit, born 7 Oct 1912 and SS Death Index entry, born 7 Oct 1912 and died 1 Jun 1980 in Detroit.
I think Henry's death appeared in the Detroit papers around 2 Feb 1945. I have looked in the papers through 1944 and ran out of time while in Lansing.