The Belgian Croix de Guerre was awarded in Decree of May 2, 1946, No 2265, to "Thomas NICHOL Jr., No 0306889". See "Belgium remembers and honors the U.S. Armies of Liberation" p. 195.
Left sleeve SSI is 1st Army. Right sleeve (combat) patch, is British-made (?) SHAEF, embroidered on very dark blue (black?) wool.
The jacket is fully lined in red rayon. A printed label is sewn in the collar, "THOMAS NICHOL, JR. | A.S.N. 0306889". Tailor's label in the right inside-breast pocket: "RAMAN | 10. NEW BOND STREET | LONDON. W. 4C | [...]", dated, possibly, "10/5/45".
I believe this Thomas Nichol, Jr., 1909-1980, was a Major/Lieutenant Colonel, in counter-intelligence, on Eisenhower's staff. This does NOT match the writing on the back of the photograph in this grouping, however. He was a Major on 8 December 1944.
Entire grouping:
British-made "Ike" jacket of Thomas Nicol, Jr.
Photograph of Thomas Nichol, Jr., in Army uniform
Boy's Army cap of Thomas Nichol, Jr.
Boy's Army uniform of Thomas Nichol, Jr.
Boy's Sam Browne belt of Thomas Nichol, Jr.
Boy's shoes, associated with Thomas Nichol, Jr. grouping
Boy's leather gaiters of Thomas Nichol, Jr.