USSR.People's Commissariat of Internal Affairs.Department of civil status.Marriage certificate Maximov Konstantin Matveyevich and Princes Seraphim Feodorovna.Leningrad, April 12, 1937.

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The brigade of submarines of the Baltic fleet (4).Political Section.Maximov, Konstantin Matveevich.Report cards on the party ticket № 3134036. January 20, 1940.

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"Y-406" submarine.Help Maximova Seraphim Feodorovna that she is the wife of a soldier Maximov Konstantin Matveyevich.May 23, 1941 g.Libava, May 23, 1941.

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"Y-406" submarine.Help Maximov Konstantin Matveev of family composition for the evacuation of the city of Leningrad.February 3, 1942. Leningrad, February 3, 1942.

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Military unit field mail (22921).Help Maximova Serafima Fedorovna about the rewards of her engineer husband, Captain-Lieutenant Maksimov Konstantin Matveyevich.August 27, 1943. Leningrad, August 27, 1943.

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Military unit field mail (22921).Help Maximova Serafima Fedorovna that her husband Maximov, Konstantin Matveevich took part in the defense of the mountains.Leningrad.August 27, 1943. Leningrad, August 27, 1943.

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