There is a lot of mixing up of Kendricks between the north and the south. It doesn't help that both sides use the same first names. My family is descended from the Virgina Kendricks and I have yet to find that any of the people in my line who went north (there are a couple of examples in the reverse though). The two families are likely related back in England, but we seem to have taken a sharp turn away from each other upon arrival in the colonies.
US and International Marriage Records, 1560-1900 shows Rebecca Jones West, born in VA, married in VA to a John Kendrick, also born in VA. I tend to think this is not the John William Kendrick born in MA. I guess they could have lied about where they were born or it was a mistake, but I'd follow the thought process that these are two different Johns until proven otherwise.
Just my two cents.