Further investigation of this shows the Nanny has its start point stated as Kentstown in multiple sources and not all the way back to this note as I incorrectly stated previously. 

What I did do was extended the length of the Nanny slightly so that its start point begins in Kentstown townland. Other than that, extended some of the stream that feeds it, added some bridges / culverts where required and named a few features where possible from the 3906 layer. 

Nothing left ot be done with this