Price's campaign, Kyle S. Sinisi's The Last Hurrah: Sterling Price's Missouri Expedition of 1864, historians have long exaggerated the casualties inflicted in the fighting around Westport on October 21–23, 1864. Sinisi's new estimates are that the Union forces lost 361 and the Confederates 510 men, killed, wounded, or captured, on October 23. However, most sources give the total casualties as 3,000 men, about 1,500 Union and 1,500 Confederate. Another primary source gives an estimate of 400 casualties for the Union and 1,000 to 1,500 for the Confederacy. Noteworthy participants Several participants in the battle later went on to gain national fame in other ways, many of them in the American Old West. Buffalo Bill Cody served as a private in the 7th Kansas Cavalry ("Jennison's Jayhawkers"). Wild Bill Hickok served as scout for General Curtis. Frederick Benteen, who assumed command of a brigade at Byram's Ford, would subsequently fight with George Custer at the Battle of Little Bighorn. Mountain man John "Liver Eating" Johnson (popularly known as Jeremiah Johnson) enlisted in the U.S. Navy before the war and on February 24, 1864, joined Company A, 3rd Regiment, Colorado Cavalry Volunteers "from depot in St. Louis." With that regiment, he fought for the Union at the Battle of Westport. Three Union officers at Westport later served as post-war state governors: Samuel J. Crawford served as governor of Kansas, while John Lourie Beveridge became governor of Illinois. Thomas Theodore Crittenden served as governor of Missouri and was later buried in Forest Hill Cemetery, scene of fighting during Price's retreat from Westport. Serving in the Kansas Militia during the battle was Kansas State Treasurer David. H. Heflebower who helped found the Peoples Party in Kansas and was a leader in the Greenback and later Union Labor Parties. Senators Jim Lane and Samuel C. Pomeroy served on Curtis's staff while future U.S. Senators Preston B. Plumb and Edmund G. Ross served as Federal officers. Former lieutenant governor Thomas C. Reynolds joined Gen. Price's staff, in hopes that Price's army might capture Jefferson City and install him as governor of a Confederate regime in Missouri. Price had served as a prewar governor, while Marmaduke later served as a post-war governor of Missouri. Memorials Although many signs and placards commemorating some aspect of the Battle of Westport are present throughout Kansas City today, the main battle monument is located in the Sunset Hill neighborhood just south