Jonathan Duncan was the co-owner of the Duncan & Duncan Robotics store in Summersville before the Great War.
Background
Jonathan owned the robotics store with his twin brother, James. According to James, Jonathan had some sort of numeric obsession which James was convinced would ruin the pair's business. However, in reality Jonathan was deceased (and buried at a nearby cemetery) and James had gone delusional, acting as if his brother was still alive, even reprogramming his Mister Handy servant Skinner when he questioned this.[1] James blamed Jonathan for changing the code to the store's Assaultron showroom to follow his supposed obsession, even hiring the law firm Gramercy & Ulster to track down his no longer existent brother.[2]
Appearances
Jonathan Duncan is mentioned only in Fallout 76, introduced in the Wastelanders update.