User talk:2A00:23C5:A604:900:D1F0:33E9:DAED:794D

May 2020
Hello, I'm Mattythewhite. I noticed that you added or changed content in an article, Charles Vernam, but you didn't provide a reliable source. It's been removed and archived in the page history for now, but if you'd like to include a citation and re-add it, please do so. You can have a look at the tutorial on citing sources. If you think I made a mistake, you can leave me a message on my talk page. Thank you. Mattythewhite (talk) 15:21, 29 May 2020 (UTC)
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