Complex sentence: She was laid down 30 April 1943 by Brown Shipbuilding Co., Houston, Texas; launched 15 July 1943; and commissioned on 29 October 1943 manned by a Coast Guard crew under the command of Lieutenant Commander Oscar C. Rohnke, USCG.
Split into simpler sentences: She was laid down 30 April 1943 by Brown Shipbuilding Co., Houston, Texas and launched on 15 July 1943. The ship was commissioned on 29 October 1943 manned by a Coast Guard crew under the command of Lieutenant Commander Oscar C. Rohnke, USCG.