Hi The Messers are very complicated since Ezekiel had over 20 children. There was also a family name change from Mercer to Messer. I don't know if it was Ezekiel's great grandfather or grandfather who changed the family name from Mercer to Messer. I believe it was done because 2 sons were named William from two separate marriages. Also one of the Williams could not read. You can look up www.findagrave.com
and check out the name Rev. Commodore Donophin Messer # 39973104 and you will see the information that Peter was a Revolutionary War Solider.