I received an email this afternoon from a cousin on my husband's side of the family. It appears that the elusive Daniel Chamberlin was an author. Cousin Jean's daughter in law found a book he wrote while he was a teacher. It is on WorldCat under the following information (available on microfilm at the Library of Congress!):
Natural System of English Grammar Introductory Course
Daniel B Chamberlin
1900-1983? English Book : Microform 55 p. ; 18
cm. New York : Scribner,
Of course once I got this email I went straight out to Google... wouldn't you? That is when I found several Google ebooks that are catalogues of books published in 1871, and this publication is listed among them.