Hello Cheryl! Yes it looks like we are distant relatives! Here is what I have:

Isaac Ewer b. 1785, married Mehitable Fish in Barnstable MA in 1810. Had a son named Edwin Ewer, b. 1810, married Polina Ann. Had a daughter, Euphronia Ewer, b. in Monroe County NY abt 1834/1835, who married Oliver White. They had a son, William Hallock White, b. 1860 in Ontario County NY, married Jessie Pampel, they had daughter Marion White - my Gr-grandmother. I can't seem to get past Isaac...whatever you have would be wonderful! And I just tried today to get that book but the library had loaned it out. I am hoping to find another copy at another library. I did find however the book "The Seven Villages of Barstable", which painted a colorful picture of our Thomas Ewer! Do you have any info on a Rev. Seth Ewer? How exciting to find a relative - I am in Western MA, so not far from the Cape.
regards,
Niki