"Now then I can go on," thought Maltravers; why, I cannot say, for I do not see the sequitur; but on he went in medias res.
"Ernest Maltravers, Complete"
Edward Bulwer-Lytton
In fact, the argument is a perfect non sequitur.
"A Budget of Paradoxes, Volume II (of II)"
Augustus de Morgan
There's a non-sequitur for you!
"Put Yourself in His Place"
Charles Reade