Complex sentence: None of the "Kalamazoo" class monitors were completed by the end of the war and the Navy consequently cancelled their construction, and it is not known whether Tetlow completed the turrets or was paid for his work.
Split into simpler sentences: None of the "Kalamazoo" class were completed by the end of the war and the Navy consequently cancelled their construction. It is not known whether Tetlow completed the turrets or was paid for his work.