Talk:Peter Carl Friedrich Geyer

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I'm not sure where the "M." comes from, it's nowhere to be found in those publications links. The correct wikidata item is Q2938919. The redirect page Carl Geyer is connected to that object. Twelvefour (talk) 16:02, 1 October 2022 (UTC)[reply]

@Twelvefour: Thank you for pointing this out. Indeed the Carl M. Geyer page (Wikidata Q25796393) and Carl Geyer page (Wikidata Q2938919, for Peter Carl Friedrich Geyer) needs to be dealt with. Note however that the two (?) authors are listed with different years of birth and death. The Carl M. Geyer page says "1802–1889" while an old version of the "Carl Geyer" page says "1796–1841". I've added a note at the Village Pump with a link to this discussion.
Tommy Kronkvist (talk), 20:52, 19 October 2022 (UTC).[reply]
Hi, I noticed that oddity with the birth/death dates too some time ago, but unfortunately couldn't figure out where either set of dates or the "M." initial ultimately came from. Oddly enough, there is a single article on US moths from 2019 available online that mentions "Carl M. Geyer (1796-1841)" in a note: [1]. But given that the Wikispecies page "Carl M. Geyer" was created in 2016, it's hard to ignore the possibility that the moth article copied the text from Wikispecies. Monster Iestyn (talk) 00:57, 20 October 2022 (UTC)[reply]
The 2012 web version of "A Guide to Nabokov's Butterflies and Moths" also gives the same years (1796-1841) for "Carl Geyer": [2] Monster Iestyn (talk) 01:00, 20 October 2022 (UTC)[reply]

I'm not clear what needs to be done. What would the ideal end result look like? Andy Mabbett (Pigsonthewing); Talk to Andy; Andy's edits 14:45, 21 October 2022 (UTC)[reply]

In DNB[3] it is clearly stated that 1796-1841 is wrong.--Twelvefour (talk) 18:02, 31 October 2022 (UTC)[reply]
Andy Mabbett: I have merged the two Wikidata items into Q2938919. Here at Wikispecies the Carl M. Geyer page should be moved to Peter Carl Friedrich Geyer. His given name is fairly well referenced in the Wikidata item. There one will now also find a reference for the incorrect years of birth and death, where the German National Library's Integrated Authority File states "Lebensdaten: 1802–1889 (falsche Lebensdaten: 1796–1841)". In essence that translates to "Lifespan: 1802–1889 (false vital dates: 1796–1841)." It's the same link as in Twelvefour's latest post above. –Tommy Kronkvist (talk), 10:38, 1 November 2022 (UTC).[reply]
 Done The page has now been renamed. Monster Iestyn (talk) 13:49, 1 November 2022 (UTC)[reply]
Good job Monster Iestyn. I updated the last remaining handful of redirects and deleted the two old and now superfluous "Taxa by author" categories. The corresponding Wikidata item was updated automatically after you moved the author page so now the whole issue is settled, including all cross-wiki stuff. Thanks to all participants! Tommy Kronkvist (talk) 00:18, 2 November 2022 (UTC)[reply]