- Photos taken between 2000 and 2009 have the following initials:
- [jthb] = Jan Theo Bakker
- [ss] = Silvano Sanges
- [ms] = Melissa Sellers
- [bs] = Bill Storage - Laura Maish
- [et] = Eric Taylor
- [bt] = Bill Thayer
- Photos taken in March 2006 have these initials:
- [dga] = Daniel González Acuña
- Photos taken between 2010 and 2017 have these initials:
- [gh] = Gerard Huissen
- Photos taken on July 25 2019 have these initials:
- [gh2] = Gerard Huissen
- Photos taken between 2010 and 2018 have these initials:
- [kh] = Klaus Heese
- Photos taken on September 19 2019 have these initials:
- [tm] = Tonino Menghi