Kirkwood's sculptured likeness by sculptor Vinnie Ream is maintained among the two coveted statues apportioned to each state on display under the rotunda in the National Statuary Hall Collection in the United States Capitol in Washington, D.C.
A bust of Kirkwood is in the Vicksburg National Military Park.

A memorial plaque is in front of Iowa City High School.
Kirkwood's sculptured likeness by sculptor Vinnie Ream is maintained among the two coveted statues apportioned to each state on display under the rotunda in the National Statuary Hall Collection in the United States Capitol in Washington, D.C.
A bust of Kirkwood is in the Vicksburg National Military Park.
A memorial plaque is in front of Iowa City High School.
Samuel J. Kirkwood