Acrostic

An 1850 acrostic bi Nathaniel Dearborn, the first letter o ilk line spellin the name "JENNY LIND"

An acrostic is a poem (or ither form o writin) in that the first letter (or syllable, or wird) o ilk line (or paragraph, or ither recurrin featur in the text) spells oot a wird, message or the alphabet.