"The very first puzzle?" and observant agent remarked, when Orin shared his thoughts. "You mean the number of letter in the name might match some clue?"
Orin shook his head. "No...I don't think it's the structure of the puzzle that seems familiar, but a particular device. I was also thinking that since the pictograms of the (+1) use the last names only, but the initials are for both the last name and first name, maybe the (+1) part is related to something to do with the first names?"