Anvil, Christopher

Christopher Anvil (March 11, 1925 – November 30, 2009) Pseudonym of US author Harry C Crosby Jr (1925-2009), whose two earliest stories were published under his own name: “Cinderella, Inc.” (December 1952 Imagination) and “Roll Out the Rolov!” (November 1953 Imagination).
https://www.isfdb.org/cgi-bin/ea.cgi?Christopher_Anvil