A good deal; no small specimen.
1816. He is considerable of a surveyor.Pickering, Vocabulary. (N.E.D.)
1843. Wal! you re considerable of a critur now, you are, by thunder! you etarnal, great, green-eyed, black devil! [A cat.]Yale Lit. Mag., ix. 79 (Dec.).
1852. He is really worth knowing, and considerable of a man, as we sayno fool at all, except in the way he lets his wife bully him.C. A. Bristed, The Upper Ten Thousand, p. 142 (N.Y.).