Story told by Francis La Flèche to James Owen Dorsey (Dorsey 1890: 362).
Note: Evidentials are in bold face. In the second part of this contribution there is a schematic representation of the discourse timeline structure of the story and below RRG layered structure representations showing the complex morphosyntax by the example of three of the Omaha sentences from the story.
The following discourse timeline scheme and the layered structure representations are my own interpretation.
Discourse timeline structure of the story
RRG 'trees' for sentences S2, S5 and S20