Mary Frances Thelen (1968) biography in Tennant F.R. (1903) The Sources of Doctrines of the Fall and Original Sin (Schoken: New York); Delton L. Scudder (1940) Tennant’s Philosophical Theology (Yale University Press: New Haven; Humphrey Milford: London; Oxford University Press: Oxford). Also, see the website: http://www.bautz.de/bbkl/t/tennant_f_r.shtml
