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in Superman Presents Supergirl Comic (K. G. Murray, 1973 series) #6 ([February 1974] ?)
in Superboy (Illustrerte Klassikere / Williams Forlag, 1969 series) #8/1975 ([august] 1975)
in Superman Presents Supergirl Comic (K. G. Murray, 1973 series) #6 ([February 1974] ?)
in Superboy (Illustrerte Klassikere / Williams Forlag, 1969 series) #8/1975 ([august] 1975)
in Bumper Western Album (K. G. Murray, 1978 ? series) #73 ([Circa 1979-1980])Letters are from Mike W. Barr, Akron, Ohio (probably the comic scripter who was first published by DC a few years later); Richard H. Morrissey, Framingham, Mass (who contributed much information to the GCD prior to his death); and David Dasch, Brooklyn, N.Y.