The Goodreads page for A.A. Garrison leads to the author's blog, which shows several (non-genre) books by "Aaron Garrison", establishing that part of his name. The profile link on Garrison's blog verifies that he's a male and lives in Boone, NC. The "other" author we have on this site is "Aaron Ashley Garrison". Voter records and White Pages verify that "Aaron Ashley Garrison" also lives in Boone, NC, establishing the pseudonym.