Thanks for the follow up. I fully understand how hatcheries work. I studied aquaculture, and worked for the MNR as a fish culture technician. There were plenty of cutthroat that were stocked into the upper great lakes. You could refer to this, directly from the Great Lakes Fisheries Commission.
"CUTTHROAT TROUT Salmo clarki Richardson. Michigan was the first state to propagate cutthroat trout, a native Western North American species, and stock it into waters of the basin. The federal fish hatchery at Leadville, Colorado, began active propagation of the species in 1889 and was primarily responsible for distribution of cutthroat trout to various state fish commissions (McDonald 1893, 1894). The Federal Fish Hatchery at Northville, Michigan, was an early recipient of fish from Leadville, and had 940 cutthroat trout on hand in 189 1 (Worth 1895). In 1892, the Minnesota and Wisconsin Fish Commissions both received small numbers of fish from Leadville (McDonald 1895). Although most cutthroat trout produced went to western states, the Leadville Hatchery also distributed small numbers of fish and eggs to various state fish commissions in the Great Lakes basin until the early 1900s, but whether any of these states, besides Michigan, stocked cutthroat trout in the Great Lakes or in the basin is uncertain. In 1895 the Michigan Fish Commission began planting cutthroat trout in the south branch of the Pere Marquette River, a tributary to Lake Michigan (Michigan State Board of Fish Commissioners 1897). Michigan continued to stock cutthroat trout in state waters from 1895 to 1940. A total of 105,000 fish were stocked by Michigan, but apparently all introductions failed because no fish were reported caught from waters of the upper Great Lakes basin (Holcomb 1964). Cutthroat trout may also have been introduced into Canadian waters of Georgian Bay, but the year or years of introduction and the outcome were not reported (McAllister and Crossman 1973)