Owen is not so much an unsung hero, but definitely one that could be sung about more. With a massive 1701 commits to Koha, the first one being in March of 2003, Owen is one of the oldest and most prolific developers.
Owen specialises in UI and UX work and writes a blog that is invaluable to anyone working on Koha look and feel. What makes it even cooler is that Owen works for a library, not one of the many Koha support companies. That not only makes Owen cool, but it makes his library super cool for understanding the more you put into Koha, the more you get out.
So thank you Owen, thank you to your family, and to Athens County Public Libraries.