The first engine was assembled and installed in the US Army Quartermaster Steamer Evan Thomas .
The parts were cast in 1898 at the Heffernan Machine Works in downtown Seattle as one of two identical engines built for the Army .
The first engine was assembled and installed in the Army   Quartermaster Steamer Evan Thomas .
The parts were cast in 1898 at the Heffernan Machine Works in downtown Seattle as one of two identical engines built for the Army .