The verdict followed a four-week trial that included testimony from former and current employees of the plant along the Niagara River north of Buffalo.
Estimates at the Peace Bridge -- which crosses the Niagara River and connects Buffalo and Canada -- ranged up to 15 hours, according to the Ontario advisory.
He was from Defynnog near Brecon and served in the 1st Battalion, 24th (2nd Warwickshire) Regiment of Foot on the south bank of the Buffaloriver in South Africa.