CALIFORNIA.—John Conness and James A. McDougall.
CONNECTICUT.—James Dixon and Lafayette S. Foster.
DELAWARE.—Willard Saulsbury and George Read Riddle (vice Senator Bayard, who resigned).
ILLINOIS.—William A. Richardson and Lyman Trumbull.
INDIANA.—Thomas A. Hendricks and Henry S. Lane.
IOWA.—James Harlan and James W. Grimes.
KANSAS.—Samuel C. Pomeroy and James H. Lane.
KENTUCKY.—Garrett Davis (Senator Davis is sometimes mentioned as a Democrat) and Lazarus W. Powell.
MAINE.—Lot M. Morrill and William Pitt Fessenden (resigned in 1864, and was succeeded by Nathan A. Farwell).
MASSACHUSETTS.—Charles Sumner and Henry Wilson.