Once

stickleback (48 times lifesize)

Non-fiction? ~ memoir?
Published in Six Common Things, 1893
(First read 02/06/2014)

The narrator recounts various episodes from his childhood, mainly in connexion with the natural world, including the fun tale of him and his (unnamed) sister keeping ~ and inevitably losing ~ a pet stickleback.  This certainly looks and reads like straight memoir ("When I was eight years old my family moved to Truro" etc.) but ~ not that it really matters all that much ~ is rather too neat and polished not to have been at least partly fictionalized.  Still, it's diverting enough.  Read it online here.