The Otto Haas Family Papers document the personal and professional life of Otto Haas (1872-1960) and his wife Phoebe Waterman Haas (1882-1967); the Rohm and Haas Company, of which he was a co-founder; and members of the Haas and Lorcher family.
A small portion of the collection has been digitized.
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3 items
Letter from Louise Haas to Otto Haas, December 27, 1912
Box 2, Folder 7- 1912-Dec-27
Letter from Louise Haas to her son Otto Haas (1872-1960), informing him of the death of a family member.
Otto Haas was the co-founder of Rohm & Haas, best known for manufacturing Plexiglas (acrylic glass), as well as…
- Addressee Haas, Otto, 1872-1960
- Author Haas, Louise
- Subject Haas, Otto, 1872-1960, Haas, Louise
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4 items
Letter to Otto Haas, December 8, 1912
Box 2, Folder 7- 1912-Dec-08
Letter to Otto Haas (1872-1960) informing him of a child in his family who has fallen ill.
Otto Haas founded Rohm & Haas in 1909. John C. Haas started working at Rohm & Haas in 1942. After his father's death in 1960,…
- Addressee Haas, Otto, 1872-1960
- Subject Haas, Otto, 1872-1960
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2 items
Letter from Otto Haas to John C. Haas, May 21, 1937
Box 2, Folder 6- 1937-May-21
Letter from Otto Haas (1872-1960) to his son John C. Haas (1918-2011).
Otto Haas founded Rohm & Haas in 1909. John C. Haas started working at Rohm & Haas in 1942. After his father's death in 1960, Haas became…
- Author Haas, Otto, 1872-1960
- Addressee Haas, John C. (John Charles)
- Subject Haas, Otto, 1872-1960, Haas, John C. (John Charles)
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3 items
Letter from Otto Haas to John C. Haas, March 16, 1942
Box 2, Folder 6- 1942-Mar-16
Letter from Otto Haas (1872-1960) to his son John C. Haas (1918-2011).
Otto Haas founded Rohm & Haas in 1909. John C. Haas started working at Rohm & Haas in 1942. After his father's death in 1960, Haas became executive…
- Addressee Haas, John C. (John Charles)
- Author Haas, Otto, 1872-1960
- Subject Haas, Otto, 1872-1960, Haas, John C. (John Charles)
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3 items
Letter from Otto Haas to John C. Haas, May 21, 1939
Box 2, Folder 6- 1939-May-21
Letter from Otto Haas (1872-1960) to his son John C. Haas (1918-2011).
Otto Haas founded Rohm & Haas in 1909. John C. Haas started working at Rohm & Haas in 1942. After his father's death in 1960, Haas became executive…
- Addressee Haas, John C. (John Charles)
- Author Haas, Otto, 1872-1960
- Subject Haas, John C. (John Charles), Haas, Otto, 1872-1960
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4 items
Letter from Otto Haas to John C. Haas, March 19, 1937
Box 2, Folder 6- 1937-Mar-21
Letter from Otto Haas (1872-1960) to his son John C. Haas (1918-2011).
Otto Haas founded Rohm & Haas in 1909. John C. Haas started working at Rohm & Haas in 1942. After his father's death in 1960, Haas became executive…
- Author Haas, Otto, 1872-1960
- Addressee Haas, John C. (John Charles)
- Subject Haas, John C. (John Charles), Haas, Otto, 1872-1960
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3 items
Letter from Otto Haas to John C. Haas, March 21, 1937
Box 2, Folder 6- 1937-Mar-21
Letter from Otto Haas (1872-1960) to his son John C. Haas (1918-2011).
Otto Haas founded Rohm & Haas in 1909. John C. Haas started working at Rohm & Haas in 1942. After his father's death in 1960, Haas became executive…
- Author Haas, Otto, 1872-1960
- Addressee Haas, John C. (John Charles)
- Subject Haas, John C. (John Charles), Haas, Otto, 1872-1960
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117 items
Hilla Lorcher's Travel Journal, 1928
Box 2, Folder 3- 1928-Oct – 1928-Nov
Travel journal written by Hilla Lorcher documenting her journey from Germany to America to visit the Haas family, from October through November 1928. Lorcher describes her travels by ship, her experiences during her…
- Creator Of Work Lorcher, Hilla
- Subject Lorcher, Hilla, Transatlantic voyages, Haas, Otto, 1872-1960, Haas, Phoebe Waterman, 1882-1967
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2 items
Certificate of Vaccination for Otto Haas
Box 1, Folder 8- 1884-Jun-18
Otto Haas' (1872-1960) certificate of vaccination, dated June 18, 1884.
Otto Haas was the co-founder of Rohm & Haas, best known for manufacturing Plexiglas (acrylic glass), as well as foundational chemical ingredients…
- Subject Haas, Otto, 1872-1960, Vaccines
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2 items
Otto Haas's confirmation certificate
Box 1, Folder 9- 1916-Apr-19
Confirmation certificate for Otto Haas (1882-1960), dated April 19, 1916, in Philadelphia.
Otto Haas was the co-founder of Rohm & Haas, best known for manufacturing Plexiglas (acrylic glass), as well as foundational…
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2 items
Employment addendum (Zusatzvertrag) for Otto Haas
Box 1, Folder 12- 1901-May-06
1901 employment addendum (Zusatzvertrag) for Otto Haas (1872-1960), from G. Siegle & Co.
Otto Haas was the co-founder of Rohm & Haas, best known for manufacturing Plexiglas (acrylic glass), as well as foundational…
- Creator Of Work G. Siegle & Co.
- Subject Haas, Otto, 1872-1960, G. Siegle & Co., Labor contract
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Certificate of character and employment (Arbeitszeugnis) for Otto Haas
Box 1, Folder 12- 1890-Jun-30
Certificate of character and employment (Arbeitszeugnis) for Otto Haas (1872-1960) issued by the Royal Württemberg Court Bank on June 30, 1890.
Otto Haas was the co-founder of Rohm & Haas, best known for manufacturing…
- Creator Of Work Royal Württemberg Court Bank
- Subject Haas, Otto, 1872-1960, Royal Württemberg Court Bank, Employment references
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3 items
Kast & Ehinger employment contract for Otto Haas
Box 1, Folder 12- 1898-Jun
Employment contract between Kast & Ehinger and Otto Haas (1872-1960).
Otto Haas was the co-founder of Rohm & Haas, best known for manufacturing Plexiglas (acrylic glass), as well as foundational chemical ingredients…
- Creator Of Work Kast & Ehinger (Stuttgart, Germany)
- Subject Haas, Otto, 1872-1960, Kast & Ehinger (Stuttgart, Germany), Ink industry, Labor contract
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7 items
G. Siegle & Co. employment contracts for Otto Haas
Box 1, Folder 12- 1898-Jun – 1898-Jul
Two G. Siegle & Co. employment contracts for Otto Haas (1872-1960).
Otto Haas was the co-founder of Rohm & Haas, best known for manufacturing Plexiglas (acrylic glass), as well as foundational chemical ingredients used…
- Creator Of Work G. Siegle & Co.
- Subject Haas, Otto, 1872-1960, G. Siegle & Co., Labor contract
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3 items
Otto Haas's Military Identification Card (Landsturmschein)
Box 1, Folder 15- 1893-Jul-12
Otto Haas's (1872-1960) Military Identification Card (Landsturm-Schein).
Otto Haas was the co-founder of Rohm & Haas, best known for manufacturing Plexiglas (acrylic glass), as well as foundational chemical…
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2 items
Otto Haas's German citizenship certificate
Box 1, Folder 17- 1896-Jul-08
Otto Haas's (1872-1960) German citizenship certificate, issued in 1896.
Otto Haas was the co-founder of Rohm & Haas, best known for manufacturing Plexiglas (acrylic glass), as well as foundational chemical ingredients…
- Printer Verlag W. Kohlhammer
- Subject Haas, Otto, 1872-1960, Citizenship
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Confirmation of Phoebe Waterman Haas's birth
Box 1, Folder 14- 1923-Jul-16
Letter from Colonel William B. Davis confirming that Phoebe Waterman Haas (1882-1967) was born in September 1882 to 2nd Lieutenant John Charles Waterman (1857-1939) and his wife, Clara Waterman née Leonard (1859-1933).
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Phoebe Waterman Haas and Otto Haas's marriage license
Box 1, Folder 14- 1914-Feb-21
Marriage license for Otto Haas (1872-1960) and Phoebe Waterman Haas (1882-1967), dated February 21, 1914.
Phoebe Haas was one of the first American women to earn her doctorate in astronomy in 1913; her husband, Otto…
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8 items
Letter to Otto Haas, December 12, 1913
Box 2, Folder 7- 1913-Dec-12
Letter to Otto Haas (1872-1960) congratulating him on his recent engagement. The author continues to discuss life events and personal updates.
- Addressee Haas, Otto, 1872-1960
- Subject Haas, Otto, 1872-1960
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4 items
Letter to Otto Haas, 1917
Box 2, Folder 7- 1917
Letter to Otto Haas (1872-1960) from an unknown author, sent in 1917 from Ammerland, Germany.
- Addressee Haas, Otto, 1872-1960
- Subject Haas, Otto, 1872-1960, Haas, John C. (John Charles)
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4 items
Letter from Louise Haas to Otto Haas, May 5, 1906
Box 2, Folder 7- 1906-May-05
Letter from Louise Haas to her son Otto Haas (1872-1960).
- Addressee Haas, Otto, 1872-1960
- Author Haas, Louise
- Subject Haas, Otto, 1872-1960, Haas, Louise
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2 items
Birthday card from Louise Haas to Otto Haas
Box 2, Folder 7- Undated
Birthday wishes from Louise Haas to her son Otto Haas (1872-1960).
- Addressee Haas, Otto, 1872-1960
- Author Haas, Louise
- Subject Haas, Otto, 1872-1960, Haas, Louise, Birthday cards
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4 items
Letter from Louise Haas to Otto Haas
Box 2, Folder 7- Undated
Letter from Louise Haas to her son Otto Haas (1872-1960).
Otto Haas was the co-founder of Rohm & Haas, best known for manufacturing Plexiglas (acrylic glass), as well as foundational chemical ingredients used in latex…
- Addressee Haas, Otto, 1872-1960
- Author Haas, Louise
- Subject Haas, Otto, 1872-1960, Haas, Louise
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3 items
Letter from Louise Haas to Otto Haas, 1910
Box 2, Folder 7- 1910
Letter from Louise Haas to her son Otto Haas (1872-1960).
Otto Haas was the co-founder of Rohm & Haas, best known for manufacturing Plexiglas (acrylic glass), as well as foundational chemical ingredients used in latex…
- Addressee Haas, Otto, 1872-1960
- Author Haas, Louise
- Subject Haas, Otto, 1872-1960, Haas, Louise
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4 items
Letter from Louise Haas to Otto Haas, November 24, 1913
Box 2, Folder 7- 1913-Nov-24
Letter from Louise Haas to her son Otto Haas (1872-1960).
Otto Haas was the co-founder of Rohm & Haas, best known for manufacturing Plexiglas (acrylic glass), as well as foundational chemical ingredients used in latex…
- Addressee Haas, Otto, 1872-1960
- Author Haas, Louise
- Subject Haas, Otto, 1872-1960, Haas, Louise
