ROCK, JOHN C.

WASHINGTON, April 10 (AP)—The Navy announced today 20 casualties in Navy forces, including one dead and 19 missing. In addition, four names were listed whose status has changed from missing to dead.

This brings to 24,718 the total of Navy, Marine Corps and Coast Guard casualties reported to next of kin since December 7, 1941. The grand total includes 7,070 dead, 4,660 wounded and 12,988 missing.

The Michigan casualties announced today (those listed are Navy and non-commissioned personnel unless otherwise specified):

John C. Rock, Marine. Dead [September 14, 1942] (Previously reported missing on Navy Department casualty list No. 18, released on December 12, 1942). Mother, Mrs. Mary E. Rock, 1730 North Bond Street, Saginaw.