- See Armstrong for other articles with titles that contain, either by relationship or by coincidence, this character's surname.
As a captain, Armstrong commanded the USS Constellation for several years before achieving a promotion to the rank of admiral and ascending to a post as the Starfleet representative to the Federation Congress. (TOS - Fortunes of War novel: Dreadnought!)
- For the purposes of this wiki, Armstrong's rank insignia is shown as rear admiral. While no insignia was described in the source, the rank is derived from the fact that he was considered a subordinate to Vice Admiral Vaughan Rittenhouse.