Green’s Dictionary of Slang

(orig. US) a mild expletive, also attrib.

1801		Farther Excursions of the Observant Pedestrian 102: I'm determined to have a goulden bell at my door, instead of a thunderation split-skull.
1838		H.J. Robinson Capt. Mary Miller n.p.: Jerusalen thunderation—gosh if it ain’t Jack Travers.
1845		W.T. Thompson Chronicles of Pineville 172: ‘Oh, thunderation!’ said he.
1859		Grantham Jrnl 20 Aug. 4/1: He hastily replied, ‘Thunderation! s’pose you was, wasn’t I there too?’.
1864		A.F. Hill Our Boys 138: ‘Thunderation!’ I breathlessly exclaimed.
1873		W.H. Thomes Slaver’s Adventures 231: ‘He says his name is Don Christo.’ [...] ‘Don Thunderation!’ cried the sailor, with a look of contempt.
1875		N.O. Republican (LA) 5 Dec. 6/1: ‘Thunderation!’ says I.
1880		in M. Lewis Mining Frontier (1967) 98: Great thunderation!
1885		Bulletin (Sydney) 28 Feb. 7/4: ‘Thunderation, man, you don’t mean to say you are conducting a newspaper?’ ‘Not hardly. […] Why, I married a rich old maid who had been wanting to get a husband for the last thirty years.’.
1896		S. Crane George’s Mother (2001) 81: Thunderation! [...] what would I do at a prayer-meetin’?
1900		W.F. Drannan Thirty-One Years on the Plains and in the Mountains (1903) 48: ‘Thunderation!’ exclaimed Hughes.
1908		Vanguard Library 31 Mar. 4: Thunderation!
1922		Joyce Ulysses 403: Thunderation! Keep the durned millingtary step.
1931		R.E. Howard ‘Sign of the Snake’ Action Stories June 🌐 Thunderation, Steve, I wouldn’t hit a man which has just stopped as many knives as you have.