If you’re looking for important material to back-translate into Chinuk Wawa…
(For a class assignment, or as a public service,) you need to read James G Swan’s 1857 book “The Northwest Coast“.
Material in it recorded eyewitness by Swan, such as the treaty-grounds speech of Chief Narkarty (Nahcotta) of the Lower Chinooks, is documented in a reliable form and has huge historical significance.

