Nemaha County  1855 to 1857  Shows Trails of the time.  
No township names at that time,  plat 11-2,
Richmond Township today.
Seneca is today located mostly  in section 34 was first called Castle Rock.
Wild Cat (now St. Benedict) was located in Section 8. 
Richmond is in section section 24,  The Richmond river Crossing was at Richmond until 1859 when Capt John Smith E Smith diverted the trail to Seneca by seeding oats or millet on the trail and diverting the traffic to Seneca,
as it was first named.  Click here to open 1900 plat map of Richmond   or Marion Township with trails marked.

 See enlarged map of Section 34 and 35, location of Seneca today.