|Relatives:|| Ethan Arden (grandson)|
Sonya Arden (granddaughter)
Lieutenant Commander Katharine Eichelbaum was the chief engineer of the USS Eagle, which went missing sometime before 2350. Starfleet declared her missing, presumed dead. Ethan Arden was her grandson and Bianca Arden was her daughter. (Star Trek: The Cantabrian Expeditions)
- The spelling of her first name is a combination of Germanic and English spellings.