On August 8, 1924, Dobzhansky married geneticist Natalia "Natasha" Sivertzeva who was working with I. I. Schmalhausen in Kiev, Ukraine.
O 8 de agosto de 1924, Dobzhansky casou coa xenetista Natalia "Natasha" Sivertzeva, que traballaba con I. I. Schmalhausen en Kiev, Ucraína.