White Family of Perquimans

I've traced our Whites  back to Alexander white
 who died in 1835 leaving two sons Thomas
 Isaac and Hugh Knox. I am pretty sure his
father is Isaac son of William the Quaker. I'd 
Like to prove Isaac and if he is for sure then his
father whom I believe is William son of Joseph. 
Please contact me with your Perquimans info
on White family.