I am a direct decendent of Johann Fredrick Mouser. Although I found one person that had him listed as Jacob Fredrick Mouser. Not sure about all this as I am still trying to verify everything. I will definately post if I get anything concrete on these brothers. I have been searching census records but have not made it that far back in the family yet. The site you want is actually Mcroy. Here is the link: http://www.pcfa.org/~dstewart/mcroy/http://www.pcfa.org/~dstewart/mcroy/Hope this helps. Feel free to email me if you have any more information of questions.