Columbia subject headings:
Harvard subject headings:
Friendship--Religious aspects.
Love--Religious aspects
Philosophers--France--Correspondence
Swan, Lucile, -1965--Friends and associates.
Teilhard de Chardin, Pierre--Friends and associates.
Women sculptors--United States--Correspondence.
Princeton subject headings:
Philosophers--France--Biography.
Sculptors--United States--Biography.
Secret friends.
Swan, Lucile, -1965.
Teilhard de Chardin, Pierre--Relations with women.