Viola, According to the book "Place Names of Alberta", Volume III, Central Alberta, by Tracey Harrison, published in 1994, Tremblay Lake, in SE 3-67-15-W4, approximately 16 kilometers (10 miles) west of Lac La Biche, and "was named after Duncan Tremblay, a Metis in the area whos was mentioned in the notes of the Oblate priests. Mr. Tremblay was well known in the area circa 1870-1915, and his grandson still farms on the shore of the lake." Gordon > Does any one on list know who Tremblay Lake was named after?