A retrospect / by J. Hudson Taylor.

http://www.archive.org/details/aretrospect00tayluoft

The law and custom of slavery in British India : in a series of letters to Thomas Fowell Buxton, Esq. by William Adam; Thomas Fowell Buxton, Sir

http://books.google.com/books?id=plhkPFrJ1QUC&dq=law+and+custom+of+slavery+in+British+India

Letter to D. A. Whedon. Pittsfield. July 12, 1844.

Letter from Daniel Denison Whedon to Daniel A. Whedon, his nephew.

Letter to Gershom Cox, dated January 29, 1844

This is a letter from Phoebe Palmer and her husband written on January 29, 1844 to Gershom Cox.