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From Baseball's Canadian-American League by David Pietrusza:

The Cornwall Athletic Grounds were built in 1908 and purchased by the city of Cornwall for
$3,000. It was described by the
Sporting News as "one of the finest in Ontario.

"Cornwall," contends Emil Graff, "had one of the best ball fields you could play on. It was all
tiled, drained, and you could play doubleheaders down there, and your feet weren't sore. It
was a beautiful ballpark."

They installed lights on July 6, 1937, with Father Martin tossing out the first ball. "The lighting
plant," reported the local paper, "is one of the most powerful installed in Canada so far with 56
huge reflectors illuminating every corner of the field to daylight brilliance. The plant has a
capacity of 168,000 watts and required 112 carefully focused 1,500 watt lamps. There are
five field towers and two reflector stands mounted on the grandstand."

Sixteen-hundred fans attended that contest, including those from Ogdensburg, Massena and
other New York communities. It's also been used for field lacrosse, wrestling, boxing, track
and field, and football, and is still used for baseball. Into the 1950s and '60s the field was still
used by local semipro squads.
Cornwall Athletic Grounds
Cornwall, Ontario