 Goebel claimed that he had worked together with a certain Professor Münchhausen in the 1840s, that he had constructed equipment for experiments at today's Leibniz University Hannover (at that time called "Höhere Gewerbeschule"), that he had assisted experiments related to electric light, that he had got the idea and the basic concept of the design of an electric incandescent lamp from Professor Münchhausen and that he had continued with experiments on electric light on his own in New York.A person Professor Münchhausen was not known in the Kingdom of Hanover in the 1830s and 1840s, there is no documentation of experiments on electric light in the Kingdom of Hanover in the 1840s and no source for deliveries of equipment or any other kind of relation of Henry Goebel to today's Leibniz University Hannover.As one result of investigations in Germany and in the US and an analysis of all documents of the litigations with "Goebel-Defense" Hans-Christian Rohde stated in his dissertation, that there is no source from the time prior to 1880 to support the assumption of a relation of Henry Goebel to incandescent lamps prior to 1880.