Lieut. Grinnell.
This gallant Confederate officer, now a prisoner at Washington, is not a son of Moses Grinnell, of New York, as we inadvertently stated the other day; but of Henry Grinnell, who, we learn, possesses none of the fanatical traits of his brother. Mr. Henry Grinnell was the projector of the Arctic expedition. His son, the Lieutenant, was for some years at the head of a house in London, where he married an English lady, and subsequently removed to New Orleans. He was among the earliest to enlist in the cause of the South, and has proved his on several hard-fought fields.