There seems to be an error concerning the date of death. He actually died in 1883 http://anno.onb.ac.at/cgi-content/anno?aid=gre&datum=18830128&seite=4&zoom=33&query=%22Josef%2BLudwig%2BBayer%22~10&provider=P02&ref=anno-search --Davcza (Diskussion) 11:12, 19. Feb. 2016 (CET)