On our Nolan DNA Project Discussion page @ http://www.worldfamilies.net/surnames/n/nolan/disc.html
you will find a table labeled Nolan R1b1 Genetic Distance. On the right side of that table is listed N-16, look at the N-16 row (N-16_R1b1 5 8 12 10 14 2 4 1 4 18 4 11 10 13 37 10 8 6 5 0). At the top of the table is also a vertical N-16 row. Your closet matches appear to be N-26 at 0, N-7 at 1, and N-5 at 2.
I am also not satisfied with the Nolan R1b1 - Time to Most Recent Common Ancestor Calculator (Years), the table directly above the Genetic Distance Table, It seems to be wildly inflating the time to most recent common ancestor. Go to your Family Tree DNA personal page click on Y-DNA matches and click on the, what looks like a wrench, icon to the right of your named genetic matches to calculate an accurate Time to Most Recent Common Ancestor. The FTDNA Tip calculator is recorded in generations then multiply the generation number by either 25 or 30 for an average generation, which are the norm for this kind of calculation.
Sorry the potential ancestor research didn't provide any useful information, but keep looking. Hopefully, one day soon you will find the right family connection.
Glenn Allen Nolen email@example.com