Introduction to Chenical Physics

[Dave Monroe]

Introduction to Chemical Physics: Designed for the Use of Academies,
High Schools, and Colleges. Illus. with Numerous Engravings, and
Containing Copious Lists of Experiments with Directions for Preparing
Them
By Thomas Ruggles Pynchon
Published by D. Van Nostrand, 1873

http://books.google.com/books?id=bDpJAAAAIAAJ

1760  (ca.)

Yale alumnus Joseph Pynchon, becomes a merchant in Guilford, and
eventually in New York. He is a 'tory', opposing the movement towards
independence in Connecticut. He marries a Sarah Ruggles. Since their
son was born, there have been at least 6 persons called Thomas Ruggles
Pynchon. The first one is a doctor who dies at 36.

[...]

1851

Nathaniel Hawthorne publishes The House of the Seven Gables. Rev.
Thomas Ruggles Pynchon (1823-1904) writes the author a letter,
complaining about the 'abuse' of the 'Pyncheon' name. This Rev. Thomas
Ruggles Pynchon will become the ninth president of Trinity College in
Hartford, Conn., where he teaches science and religion. In 1881 he
publishes an Introduction to Chemical Physics. His brother William is
the great-grandfather of author Thomas Pynchon.

http://www.vheissu.info/bio/eng_tijdlijn.htm

And see as well, e.g., ...

http://www.vheissu.info/varia/eng_ancest.htm

http://www.themodernword.com/pynchon/pynchon_biography.html