1963. National Geographic, Vol. 122. National Geographic Society.It was the Wells-Fargo coach, the Deadwood coach of Buffalo Bill's Wild West, the coach from which steps that pulchritudinous schoolmarm from the East to the flabbergastment of gawping cowpokes.
1988. John Barth. Lost in the funhouse: fiction for print, tape, live voice. Anchor Press. page 69.I even attempted tears myself, but flabbergastment dried my eyes.
2002. Timothy Zahn. Angelmass. Macmillan. page 175.She had the immense satisfaction of watching him trip over his own tongue, a look of total flabbergastment flooding over his face.