Tom Thomson Wall Calendar: Tom Thomsons exploratory artistic style and his appreciation of untamed nature helped shape the style of the Group of Seven. Thomson (18771917) created hundreds of oil paintingsmany of them completed in only a few hourswhich remain masterpieces of Canadian art. The twelve images in this calendar include After the Sleet Storm; Autumn Woods, Algonquin Park; Evening, Canoe Lake; and Winter Thaw in Woods.