My grandfather, Kraysik Anton Antonovich, was born on may 20, 1897 in the village of Menshiye Mozhary in Sapozhsk district of Ryazan province in a middle-class family. He received basic education in a rural school, after he entered the Morshansk real school and finished it in may 1916. As a volunteer, he was drafted into the tsarist army and sent to the Alekseyev military school in May of the same year. After the graduation with the rank of ensign in February 1917, he was assigned to the 65th regiment as a platoon officer. In August, he was sent to the front of the 536 Yefremov regiment of the 10th army. During the February revolution he was demobilized and, after returning home, entered the military Commissariat as a General education instructor. So he began his service in the Red army. In 1921 he was sent to Moscow to the higher military chemical school and graduated from it in 1922. Since then, my grandfather's service has been associated with chemical protection. He quickly passed a way from the head of Chemical service of the regiment to the head of Chemical service of the corps, constantly improving the technical level. He worked as a military representative in factories. In 1938 he graduated from the Military Academy of the chemical protection of the red army named after Voroshilov, where he worked as a teacher until his retirement in 1954. During the great Patriotic war, he did not participate in combat operations because of his age. From 1941 to 1943 the Academy was evacuated in Uzbekistan. Krajcik A. A. taught the course of chemical protection in the military artillery Academy named after Dzerzhinsky, that he evacuated to Samarkand. After returning to Moscow in 1944, he was appointed a military representative to the Tula factory. In 1948, he returned as a teacher back to his native Academy. After leaving the reserve, he worked for many years as a teacher at the Mendeleev Institute of the chemical technologies. During many years of teaching, he has trained many specialists both for service in the chemical defense forces and for work in the chemical industry. For his work in the period from 1944-1946. Kreisik A. A. was awarded the order of Lenin, two orders of the red banner, the medal "for military merit" and other commemorative medals.