Ah. "Rudolph Bergh (October 15, 1824 – July 20, 1909), full name Ludvig Sophus Rudolph Bergh, was a Danish physician and malacologist. He worked in Copenhagen. .... His son Rudolph Sophus Bergh (September 22, 1859 - December 7, 1924) was a zoologist and a composer." (from Wikipedia.)
