Hello Andy,
May be Yelkin Nikolay Ivanivich ?
Officer Card
https://pamyat-naroda.ru/heroes/kld-...officer8488401
End of service: 07/17/1946 He was still alive in April 1985.
Or kap. Yel'kin Leonid Ilyich 06.03.1916 - HSU 22.01.1944 - MIA 29.02.1944
https://pamyat-naroda.ru/heroes/sm-person_doroga446392