That's this boat, not the one that overturned:
http://img.photobucket.com/albums/v509/zaia/Vermont/SpiritofEthanAllen.jpg
I can't find anything under
Ethan Allen
In either systems that are public access
Port State Information eXchange (PSIX)
http://cgmix.uscg.mil/PSIX/PSIX2/VesselSearch.asp
Vessel Documentation Search By Name
http://www.st.nmfs.gov/st1/CoastGuard/VesselByName.html