Columbia subject headings:
Exiles--Russia--Biography.
Gagarin, J. (Jean), 1814-1882.
Jesuits--France--Biography.
Russians--France--Biography.
Harvard subject headings:
Exiles--Russia--Biography.
Gagarin, J. (Jean), 1814-1882.
Jesuits--France--Biography.
Russians--France--Biography
Princeton subject headings:
Clergy--Russia--Biography.
Exiles--Russia--Biography.
Jesuits--France--Biography.
Russians--France--Biography.