Oliver S. Halstead, Member of Congress. Brady-Handy Collection, Library of Congress, http://www.loc.gov/pictures/collection/brhc/item/brh2003000067/PP/
Oliver S. Halstead, Member of Congress. Brady-Handy Collection, Library of Congress, http://www.loc.gov/pictures/collection/brhc/item/brh2003000067/PP/