Table:
text: Canonicus-class monitor
Ships
Ships
Ship Builder Namesake Renamed Laid_down Launched Commissioned_or_completed_
Manhattan Perine, Secor & Co., Jersey City, New Jersey Manhattan Indians Neptune, 15 June 1869; Manhattan, 10 August 1869 1862 14October1863 6 June 1864
Oneota Alexander Swift & Company, Cincinnati, Ohio Oneota Tribe of the Sioux Indians Manco Cápac 1862 21 May 1864 10 June 1865*
Saugus Harlan & Hollingsworth , Wilmington, Delaware Saugus, Massachusetts Centaur, 15 June 1869; Saugus, 10 August 1869 1862 8 February 1864 27 August 1864
Tecumseh Charles Secor & Co., Jersey City, New Jersey Tecumseh Not Applicable 1862 12 September 1863 19 April 1864

Question: When was the ship commissioned or completed (*) 6 June 1864 under Canonicus class monitor?

Question: When was the ship Tecumseh launched under Canonicus class monitors?