Hey Cindy & CJ: Yes, you are related. Based on what I have learned about the Kenna's in Little Falls there were two brothers who settled there, James Sr. and William Sr.
http://www.kennaweb.com/tng/getperson.php?personID=I361&...

There are some documents that document a relationship:

They bought land together in Little Falls in 1839 - http://www.kennaweb.com/tng/getperson.php?personID=I294&...

James Kenna Jr. testifies he is a cousin of William Kenna Jr. - http://www.kennaweb.com/tng/showsource.php?sourceID=S88&...

Plus there is a reference to James Jr. working with his Uncle, William at the graveyard (I don't have that online yet).

Cindy and I are from the James Kenna line and CJ is from the William Kenna line.

Wayne Kenna