If people from Texas are Texans, people from Iowa are Iowans, people from 
New Hampshire are New Hampshiremen.... what are people from Massachusetts 
called? What about all of the other states? How did you find this/these answers?

A google search for 'texans iowans' came up with quite a few hits.  One of which
is http://www.geobop.com/World/NA/Topics/People/Names/index.htm

Hey Jeff that's a great response! I don't buy the "Bay Staters" answer 
though! :-)

We've always referred to them as Mass-holes but I dont think that's appropriate 
either! We were thinking Massachusans or Massachusians......

We're not accepting Nutmeggers for Connecticut either! I bet most of them have 
never heard that term :-)

We're not accepting Nutmeggers for Connecticut either! I bet most of them have 
never heard that term :-)

We're not accepting Nutmeggers for Connecticut either! I bet most of them have 
never heard that term :-)

Connecticut Nicknames

There are several nicknames for persons from Connecticut, even though none 
is "official":

According to Webster's New International Dictionary, 1993, a person who is a 
native or resident of Connecticut is a "Connecticuter". There are numerous 
other terms in print, but not in use, such as: "Connecticotian" - Cotton Mather 
in 1702. "Connecticutensian" - Samuel Peters in 1781. "Nutmegger" is sometimes 
used. It is derived from the nickname, the Nutmeg State, based on the practice 
of the Connecticut peddlers who traveled about selling nutmegs.

http://www.state.ct.us/faqs4.htm