Parents

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Benjamin Peirce research assistant 1858 Harvard (MathTree)

Children

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Charles Lane Poor grad student 1891 Johns Hopkins
Henry L. Moore grad student 1896 Johns Hopkins (Neurotree)
Ormond Stone research scientist 1870-1875 U.S. Naval Observatory
Edward Singleton Holden research scientist 1974-1881 US Naval Observatory
Albert Abraham Michelson research scientist 1979-1881 US Almanac Office (Physics Tree)
Norbert Herz research scientist 1893 U.S. Naval Observatory