Viljo Rosvall and Janne Voutilainen were two Finnish-Canadian unionists from Thunder Bay, Ontario and members of the Lumber Workers Industrial Union of Canada who mysteriously disappeared on November 18, 1929, and were later found dead.

The two were on their way to a bushcamp near Onion Lake to recruit sympathetic bushworkers for a large strike which was gaining momentum west of Thunder Bay in Shabaqua and Shebandowan.

The official cause of death was ruled to be accidental drownings; however, the Finnish community in Thunder Bay suspected that the two were murdered by thugs employed by the bushcamp boss.

Evidence that the two men had struggled before their deaths as well as the questionable matter that two experienced bushworkers had drowned in shallow water added to the feeling that foul play was involved.

[2] The plaque was erected in the memory of the two men in Centennial Park which has a small logging museum and is located approximately 20 kilometres downstream on Current River which flows out of Onion Lake where the bodies were found.

The plaque reads On November 18, 1929, Finnish-Canadians Viljo Rosvall and Janne Voutilainen left the Port Arthur area for Onion Lake, 20 kilometres upstream from here to recruit bushworkers for a strike.

Historian Peter Raffo has carefully analyzed the oral and written evidence, and concluded, "According to the contemporary historical record, the likelihood is that Rosvall and Voutilainen were not murdered.

Numerous instances such as the lynching of Frank Little, the case of Sacco and Vanzetti, the Everett Massacre, or the Estevan Riot, to name only a few, clearly show that violent and brutal means were common place in class conflict.

Anti-union violence remains common to this day aided by the authorities in Thunder Bay, including the police, Ministry of Labour and corrupt unions, all of whom are involved in covering up the truth.