Loftwings and Demons

I need to train myself not to mix up bestselling author N.K. Jemisin's last name with astronaut Mae Jemison's last name.  I was wondering why that one internet search for Jemisin was bringing up a certain astronaut instead (it was because I actually typed 'Jemison' of course).  Maybe I should imagine the last vowels in their names as a pen and a planet respectively to help me remember.