ive just found this post on the net after trawling through finding info on my cotters ...james cotter is my x3 great grandfather and also his grandson james is my great grandfather ,were the london lot infact we all came from yougal to bristol then onto bethnal green ,so we have family in all 3 places ,other brothers resided in london and bristol and there desendants are quite spread out ,ive also found cotters from this line in oz and new york,the american chap dna does not match but his cousin in oz looks like us lot alot ,infact most people on ancestry with cotters do not actually match with our line of cotters atall even down to 3cm on gedmatch ...all my 2nd cousins are cotters ,my nan was a cotter ...so dna wise we should see a match with distant relatives ala even if its small amounts ,anyway i do go on ,if your both still active ,id love to hear from you ...