3 letters from correspondents named Lardner, in response to enquiries by Christopher Calthrop as to whether they are descendents of Dr. Dionysius Lardner; none have much information to give; one cites an unflattering reference to Dionysius Lardner in L. T. C. Rolt's George and Robert Stephenson; The Railway Revolution. 3 letters from correspondents named Lardner, in response to enquiries by Christopher Calthrop as to whether they are descendents of Dr. Dionysius Lardner; none have much information to give; one cites an unflattering reference to Dionysius Lardner in L. T. C. Rolt's George and Robert Stephenson; The Railway Revolution. 1962-1969