I really have no desire to be at odds with  you.  I am still learning and am bound to make some mistakes, but I assure you it is never intentional.  I am happy to fix any mistakes.

On the boundaries, I agree that it’s difficult to find an authoritative source for these boundaries. I did find the Census BAS files, which according to the webpage are sourced directly from the local governments.  That map for Jessup township does appear to follow the creek, but I have not been able to determine if that is legislatively defined that way. In this case, do have a recommendation for how best to map it?  It seems that using a water feature in an administrative boundary leaves open a lot of room for accidental edits of one or the other (as evidenced by my mistake).  In this case, I doubt many people would care either way, but I’m curious about this for other areas where it may be more relevant.

You can also pm me on OSM US slack (same user name) if you see something else I need to fix. 

I live in Susquehanna county and my motivations are to simply improve the map here given that rural areas are usually overlooked.