Marilyn Nebraska appears in Trigun Vol. 2 ch. 11. She is the only Nebraska daughter and looks as pretty normal for a Nebraska kid. She has apparently no skill aside from her big mouth, which even her mother points out. She and her family was hired by Morgan to dispatch of an old couple in possession of a rather valuable parcel of land. The money would've gone to bail out her brother Gofsef and her father from jail. She flees the fight when Chinpei is shot out of the air.

(Source: Trigun Wikia)