Carl Olof worked with his father carving wooden figures of various common people in the Scandinavian flat-plane style of woodcarving.
Between C. O. Trygg, his father (Carl Johan) and two brothers (Nils, and Lars), they carved over 10,000 figures.
Carl Olof, at the age of 17, immigrated to Canada with his mother Maria (43), brother Nils Johan (13) and an unknown relative, possibly his sister, Kally Maria Trygg (8) arrived in Halifax, Nova Scotia on October 7, 1928.
The Trygg family eventually settled in Montreal, Quebec, Canada and there they continued to carve.
Trygg generally carved solo figures from basswood or pine, and mounted them on a base.