Born in 1922 in the village. Elizarovo (now the Khanty-Mansi district of the Tyumen region) in a fisherman's family. He was mobilized into the ranks of the Red Army by the Khanty-Mansiysk OVK in 1941. The course of the young Red Army soldier took place as part of the 106th anti-tank fighter division. Military rank: petty officer. Position: commander of a gun crew. He began his combat path at Stalingrad, took part in the Battle of the Kursk Bulge, and was wounded in 1943. After recovering from July to August 1943, he was in the 217th artillery reserve regiment. Since August 1943 I.I. Kaigorodov was again at the front, as part of the 1285th Infantry Regiment, was again wounded. From August 1944 to May 1945 fought in the 1340th Infantry Regiment. He liberated Ukraine, Belarus, Poland. He ended the war in Berlin. Demobilized in October 1945. Awards: Order of Glory, III degree, Order of the Patriotic War, I degree; medals “For Courage”, “For Military Merit”, “For the Defense of Stalingrad”, “For the Liberation of Warsaw”, “For the Capture of Berlin”, “For Victory over Germany in the Great Patriotic War of 1941-1945”, jubilee awards.