This sub-series documents the activities of the Perkhorovyches researching the history of the Matsievych family. It includes letters from Levko Matsievych's daughter Tetiana Matsievych Porsch and other relatives or individuals connected to the family, photographs (and copies of photographs) of Levko Matsievych and family, and research notes and genealogical information compiled by the Perkhorovyches.

This sub-series documents the activities of the Perkhorovyches researching the history of the Matsievych family. It includes letters from Levko Matsievych's daughter Tetiana Matsievych Porsch and other relatives or individuals connected to the family, photographs (and copies of photographs) of Levko Matsievych and family, and research notes and genealogical information compiled by the Perkhorovyches.

This sub-series documents the activities of the Perkhorovyches researching the history of the Matsievych family. It includes letters from Levko Matsievych's daughter Tetiana Matsievych Porsch and other relatives or individuals connected to the family, photographs (and copies of photographs) of Levko Matsievych and family, and research notes and genealogical information compiled by the Perkhorovyches.

This sub-series documents the activities of the Perkhorovyches researching the history of the Matsievych family. It includes letters from Levko Matsievych's daughter Tetiana Matsievych Porsch and other relatives or individuals connected to the family, photographs (and copies of photographs) of Levko Matsievych and family, and research notes and genealogical information compiled by the Perkhorovyches.

This sub-series documents the activities of the Perkhorovyches researching the history of the Matsievych family. It includes letters from Levko Matsievych's daughter Tetiana Matsievych Porsch and other relatives or individuals connected to the family, photographs (and copies of photographs) of Levko Matsievych and family, and research notes and genealogical information compiled by the Perkhorovyches.

This sub-series documents the activities of the Perkhorovyches researching the history of the Matsievych family. It includes letters from Levko Matsievych's daughter Tetiana Matsievych Porsch and other relatives or individuals connected to the family, photographs (and copies of photographs) of Levko Matsievych and family, and research notes and genealogical information compiled by the Perkhorovyches.

Biographical notes on famous individuals with origins in Volyn'. Includes newspaper clippings, obituaries, notes, and correspondence.

Contains research notes, clippings, writings, and correspondence related to all aspects of the history of the Volyn' region from the early modern period to the mid 20th century. It even includes aspects of natural history, such as geology, flora, and fauna. Includes letters from V. Senutovych, N. Osadcha-Ianata, A. Pushkin, Iu. Shumovs'kyi, Fr. Anatolii Dublians'kyi, and others.

Documents, open letters, and newspaper clippings related to Ukrainian Orthodox churches and relationships with other Orthodox jurisdictions.

Includes research matrials on Olena Vasyleva, Halyna Zhurba, Lesia Ukrainka, and Oksana Liaturyns'ka (inluding letters from 1955-1957)