Nathaniel Lenning was born in 1844.
In 1860 Michigan native Elizabeth Lenning (b. 1813) was living in Detroit’s Eighth Ward.
Nathaniel was 20 years old and possibly living in Detroit’s Third Ward when he enlisted in Unassigned on January 12, 1864, at Owosso, Shiawassee County for 3 years, crediting Detroit, and was mustered on January 21.
There is no further record. No pension seems to be available.