"Say, Mag," he said, "put on yer bes' duds Friday night an' I'll take yehs teh deh show.
    Maggie: A Girl of the Streets by Crane, Stephen   
The duds are a little mixed in style, but I reckon they're clean and whole, and a man might face a lady in 'em.
    Devil's Ford by Harte, Bret   
The king's duds was all black, and he did look real swell and starchy.
    Adventures of Huckleberry Finn by Twain, Mark

found on http://www.thefreedictionary.com/duds