The Constantin Kluge - Pierre Leroy collection consists of 34 personal, autograph signed letters from Father Leroy to his friend Constantin Kluge, in addition to first-hand background information provided by Kluge on his acquaintance with Pierre Teilhard de Chardin and his circle (especially Pierre Leroy and Claude Riviere). A complete typed transcription of the 34 letters has been graciously provided by Mme. Solange Soulie, a close friend of Pierre Leroy.

Correspondence mainly from Jan Philip Roothaan to his family.

Correspondence mainly from Jan Philip Roothaan to his family.

Printed Articles. The first set of articles appears chronologically. The second set of articles is arranged alphabetically.

Playbills and performing arts programs collected by Valerie and Kenneth S. Lynn. Primarily from New York and Washington, D.C., especially Kennedy Center.

This series contains correspondence from Pierre Teilhard de Chardin to Lucile Swan and from Claude Cuenot to Lucile Swan, most of which appear in The Letters of Teilhard de Chardin and Lucile Swan edited by Thomas M. King, SJ, and Mary Wood Gilbert (Washington, D.C.: Georgetown University Press, 1993). The pages on which the published letters appear are indicated in this finding aid in parentheses, e.g., (p. 20).

This series contains correspondence from Pierre Teilhard de Chardin to Lucile Swan and from Claude Cuenot to Lucile Swan, most of which appear in The Letters of Teilhard de Chardin and Lucile Swan edited by Thomas M. King, SJ, and Mary Wood Gilbert (Washington, D.C.: Georgetown University Press, 1993). The pages on which the published letters appear are indicated in this finding aid in parentheses, e.g., (p. 20).

This series contains correspondence from Pierre Teilhard de Chardin to Lucile Swan and from Claude Cuenot to Lucile Swan, most of which appear in The Letters of Teilhard de Chardin and Lucile Swan edited by Thomas M. King, SJ, and Mary Wood Gilbert (Washington, D.C.: Georgetown University Press, 1993). The pages on which the published letters appear are indicated in this finding aid in parentheses, e.g., (p. 20).

Series 3 consists of chronological correspondence of John L. Brown from 1932 through 1974. The correspondence is arranged in chronological order. In each folder, both correspondents writing to Brown and correspondents receiving letters from Brown are listed.

Materials regarding Pierre Teilhard de Chardin organized chronologically as they were received by Bronwen Astor.

Correspondence mainly from Jan Philip Roothaan to his family.

Correspondence mainly from Jan Philip Roothaan to his family.

Correspondence mainly from Jan Philip Roothaan to his family.

Correspondence mainly from Jan Philip Roothaan to his family.

The musical quotation is inscribed to Madame Campbell-Clarke and reads "à Madame Campbell-Clarke avec mes plus respectueux hommages. I. J. Paderewski, Paris, le 25 Nov. 1892." Another faint inscription states that it is taken from "Variations et fugue, op. 19." However, neither of Paderewski's "Variations et fugue" are considered his opus 19 (they are opus 11 and 23 respectively), which is instead his Fantaisie polonaise. The key and meter signatures make opus 23 the most likely source.

On page 1 Saint-Saëns wrote "L'acte de propriété est à la page 4." Inscribed very faintly on page 4: "Reconnu à Monsieur Lecoq le droit de publier ces deux morceaux. Camille Saint-Saëns"

Quotation 1: 3 measures from Manon, act 2, with the singer's name, Miss Sibyl Sanderson, added parenthetically by Massenet. Signed and dated by the composer "1ere rep: Covent Garden, London, mardi 19 Mai 1891".
Quotation 2: 3+ measures from Massenet's rendition of "Le sais-tu?" in G Major, lyrics from a poem by Stéphan Bordèse. No location noted and undated, though the song is recorded as having been composed and published in 1880.