–Sheriff Bartlett's Journal
Lily Belle has an ailing sister in Clementine Falls.
The first meeting with Lily Belle is in the fourth chapter, aboard the Pan-Western Atlantic Railroad Express. After this meeting, the player can interact with the young lady on the streets of Brimstone during five different visits to the city. Lily is also seen in beginning mission "Range War", waiting in line behind Abigail Peppercorn.
Sheriff Bartlett's Journal
Lily Belle Parsons is listed in Sheriff Bartlett's Journal on pages 230 - 231 under the Good People of Brimstone section. The pages are unlocked by purchasing the Bouquet from the Tailor in Brimstone any time after the mission "Rogue Valley".