Official Army Register, January 1, 1947 (retired list), p. 1335: Clarkson, Herbert S., retired 31 May 46 with rank of brig. gen. Clarkson, Herbert S. (O3605).. retired 31 May 46 with rank of brig. gen.
Image · dated 1947 · source: Internet Archive (public-domain scan or U.S. government publication); officialarmyregi1947unit.

How it is shown: Complete page as scanned; no crop, no retouch.
Keep in mind: A printed official register, not a service file.