Lucy

 is a minor character in Red Dead Redemption.

Background
Lucy is a horse owned by Jeb Blankenship only he considers her much more than a pet as he is deeply in love with her.

Interactions
In the stranger mission Who Are You to Judge?, Marston must retrieve Lucy for Jeb.

Trivia

 * Jeb later married Lucy, according to a newspaper. Weirdly, no one attended at the ceremony.