8 months ago
Last edited at 7:21PM on 9/7/2012
Sephira has an excellent link and here's another one attributed to John Hale as he described Abraham Lincoln in 1863:
"The Tycoon is in fine whack. I have rarely seen him more serene and busy. He is managing this war, the draft, foreign relations, and planning a reconstruction of the Union, all at once." So "out of whack" likely arose as the opposite to the saying "in fine whack."