Sorry Clint don't know of any on the net; Ray Rimell did a Windsock "Datafile Special" on Nieuports so probably had a listing (his Fokker and Albatros Datafiles did).
For future reference these are RFC Nieuports ( not RNAS though); "Type 20" was developed from the 12 and was very similar ( 21 went to RFC).
http://www.airhistory.org.uk/rfc/Nieuport.html
Squadron assignments....
Type 10. 1,39,45,46 Sqns.
Type 12. 45,46,,84,10(Naval) Sqns.
Type 20. 1,45,46 Sqns.
Some Nie.12s were transferred from RNAS to 46 Sqn. (20 I think).
The RNAS called them "Nieuport 2-seaters".
Regards
Nick