Northup Trail through central Louisiana, 1984?: cover p. 2 (Northup, called "Platt" as a slave)
Voice in the slave narrative of Olaudah Equiano, Frederick Douglass, and Solomon Northrup, 2003: CIP t.p. ; pref. (he came of age as a free black man in the northern state of New York, was kidnapped and enslaved for 12 years in Louisiana) chapter 1 (his slave narrative appeared in 1853)