The Konstantin Solntsev Collection constituted a part of Thomas Whitney, Amherst College Class of 1937, donation. Mr. Whitney bought this collection in 1964 from the widow of Konstantin Solntsev, Mrs. Barbara Solntsev.
In 1996, when the collection was reviewed, internal evidence suggested that K. Solntsev arbitrarily incorporated into his own collection a part of the Vladimir Zenzinov Papers. In 1997, this part of the Vladimir Zenzinov Papers was removed from the Solntsev Collection and added to the Vladimir Zenzinov Papers. On the other hand, Kuprin's and Shmelev's materials, which were formerly maintained as a separate collection, were incorporated into the Konstantin Solntsev Collection.