1) Authors who used pseudonyms (George Orwell)
2) Authors who used pseudonyms to hide their identity due to the times, and/or went on to create elaborate back stories for their pseudonym (George Elliot, JT Leroy, Helen Darville)
3) And finally, author hoaxes, such as the Hitler Diaries and so forth.
Names are cool, if that's all you want to leave, since I'll be doing the research, but a few lines about it wouldn't go astray. Any and all help will be appreciated from your researching swimming author.