It is from a secondary source but Catherine Mills married BRYAN's brother JOSEPH. Page 15 of https://newkirk.files.wordpress.com/2017/11/newkirk-family-in-north...
Debbie Gambrell gravestone is indeed in the Newkirk cemetery. I've seen it since this is my 3rd great grandfather and his wive was a Hawes. All been 100% sourced as this is a line that I used to get into the General Society of Mayflower descendants. Which as you can imagine is very hard to get into since you have to prove each line to get to the Mayflower.
Just been merged incorrectly I believe. As for the Bryan(t) on the headstone, that's insignificant since slight errors like this happened all the time. His birth name was Bryant but went by Bryan. As the name Bryan was handed down (also my great grandfather's name).
Haven't had a change to corrct info but i will as soon as I have the time :)