`` Greenfish '' was launched by the Electric Boat Co. , Groton , Conn. , 21 December 1945 ; sponsored by Mrs. Thomas J. Doyle ; and commissioned 7 June 1946 , Comdr. R. M. Metcalf commanding .	<arg1> Greenfish </arg1> <rel> was sponsored by </rel> <arg2> Mrs. Thomas J. Doyle </arg2>	1