Green’s Dictionary of Slang

(orig. US) a general excl.; a euph. for God-damn! excl.

1914		Eve. World (NY) 13 July 14/3: Dog gone ’em! I’m glad they can’t get the vote.
1920		F.S. Fitzgerald ‘May Day’ in Bodley Head Scott Fitzgerald V (1963) 159: Doggone! Here’s some liquor I’ll say!
1926		Van Vechten Nigger Heaven 207: Dawggone, ef that ain’t the cat’s kanittans!
1932		R. Fisher Conjure-Man Dies 296: Doggone! — ain’t I smart?
1977		Champion Jack Dupree ‘Phone Call’ 🎵 Doggone! Peanuts must be good in the White House, hey?
1997		Eble Campus Sl. Fall 2: daggone or doggone – sarcastic acceptance or in place of an explicit word: ‘You have a test tomorrow’. ‘Daggone!’.