Kotel’chuk (Котельчук В.)

Letters of Kotelchuk
86 letters in Russian, 1941 – 1943.
Archive is not specified, there is no information about the author.

Kotlyarov (Котляров)

Letters of Kotlyarov
39 letters in Russian.
Archive is not specified, there is no information about the author.

Kocherovsky (Кочеровский Э.И.)

Letters of Kocherovsky
51 letters in Russian, 1941 – 1956.
Archive is not specified, there is no information about the author.

Krupnik (Крупник П.)

Letters of Krupnik
4 letters in Russian.
Archive is not specified, there is no information about the author.

Kucherovа (Кучерова)

Letters of Kucherovа
14 letters in Russian, 1933.
Archive is not specified, there is no information about the author.