Dr. K.R. Conklin had two children from his first marriage, and then acquired two stepchildren (not adopted) via his second marriage. In 1996, before his second marriage, he created a trust for the benefit of his biological children only (conveniently called "Children" in the opinion).
In 2002, Conklin and his second wife Jo undertook a cross-country trip by plane and automobile. On their way to the airport, Conklin wrote a letter by hand indicating what should happen to his estate if he and his wife should die during this trip. The letter included the two stepchildren in the distribution of Conklin's assets. He left the letter in the car's glovebox, which was parked at the airport.