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Langdon, William Edward The Telephone: A Lecture Entitled, Researches in Electric Telephony : Delivered Before the Society of Telegraph Engineers, October 31st, 1877
 Langdon, William Edward The Telephone: A Lecture Entitled, Researches in Electric Telephony : Delivered Before the Society of Telegraph Engineers, October 31st, 1877
Fowler, William Chauncey Memorials of the Chaunceys: Including President Chauncy, His Ancestors and Descendants
 Fowler, William Chauncey Memorials of the Chaunceys: Including President Chauncy, His Ancestors and Descendants
Fowler, William Chauncey English Grammar: The English Language In Its Elements And Forms
 Fowler, William Chauncey English Grammar: The English Language In Its Elements And Forms
Journal of the St. Peter (Ship) out of New Bedford, MA, Mastered by William H. Almy and Kept by J. T. Langdon, on a Whaling Voyage Between 1849 and 1852.
 Journal of the St. Peter (Ship) out of New Bedford, MA, Mastered by William H. Almy and Kept by J. T. Langdon, on a Whaling Voyage Between 1849 and 1852.
Langdon Williams Wilson, Lucy Nature Study in Elementary Schools: Second Reader: Myths, Stories, Poems
 Langdon Williams Wilson, Lucy Nature Study in Elementary Schools: Second Reader: Myths, Stories, Poems
Langdon Williams Wilson, Lucy Nature Study in Elementary Schools: First Reader
 Langdon Williams Wilson, Lucy Nature Study in Elementary Schools: First Reader
Langdon, William Chauncy The Pageant of Bloomington And Indiana University
 Langdon, William Chauncy The Pageant of Bloomington And Indiana University
Fowler, William Chauncey Memorials of the Chaunceys: Including President Chauncy, His Ancestors and Descendants [And Appendix]
 Fowler, William Chauncey Memorials of the Chaunceys: Including President Chauncy, His Ancestors and Descendants [And Appendix]
Wilson, Lucy Langdon Williams Nature Study in Elementary Schools: A Manual for Teachers
 Wilson, Lucy Langdon Williams Nature Study in Elementary Schools: A Manual for Teachers
Langdon, William Chauncey