That would have been during the 1980s when the St. Catharines dry dock had about 2,000 employees, and roughly during the 1970s when the Thunder Bay shipyard had about 2,000 employees as well. Throughout various courses of my period at Heddle, we've had up to 200 in Hamilton. It was at peak periods in each one of those yards.
The reason I drew attention to that was that those shipyards are large and they're capable of handling that many employees. Some of the largest icebreakers that are currently operating within the Coast Guard's fleet, like the Des Groseilliers, were built at Port Weller, for example.