lyricist}. I.e. Julia Ward Howe (1819–1910), a prominent American abolitionist, social activist, and poet. 18a Main {It might cross 1st, 2nd and 3rd}. As in Main Street , which typically crosses numbered streets. 19a alt. {What's gained after taking off: Abbr.}. alt. = altitude (when flying). 22a TNT {Letters of discharge?}. TNT