From 1828 to 1834, he represented Kent in the Legislative Assembly of Upper Canada from the 9th to 11th Parliament. Despite representing Kent, Berczy was residing mostly at York during legislative sitting or in Sainte-Mélanie in then Lower Canada after 1832.
Like his father he was a painter. Two paintings by Berczy hang in the National Gallery of Canada, Huron Indians leaving residence near Amherstburg[1] and Blessing of the Fields.
References
^[1] "Huron Indians leaving their Residence near Amherstburg", painting by William Bent Berczy, appearing on lower half of page 60, Aboriginal Ontario: Historical Perspectives on the First Nations edited by Edward S. Rogers, Donald B. Smith, publ. 1994.