Old Colleagues
Ormod Elderheart
Dead archeologist, who used either a log dead language, or one he made up to encrypt his diaries.
Salvador Jones
Crust old professor who once believed he had found evidence of some long dead non human life form, but was ridiculed to the point that he no longer believes anything.
Nathen Gilliam
Robotisist, build a couple of robot watch dogs/birds for his own house. Also in the past build robots to help with the archeological dig.