Barwis  = B620
Barnois = B652
Briggs  = B620
Brown   = B650
Cox     = C200
Hall    = H400
Hopkins = H125
McNeil  = M254
Nugent  = N253
Thom    = T500
Thurber = T616

Sites:
http://sites.rootsweb.com/~nedodge/transfer/soundexlist.htm   (calculator)
http://www.searchforancestors.com/utility/soundex.html     (calculator)

https://www.archives.gov/research/census/soundex  (about soundex)