I have some information my ggg grandfather was Martin John Mason (Martinus Maurer)Sr, his brother was Johannes Phillip Manson (Maurer) and their father is Phillip Charles Maurer born around 1710. They were from Preussen, Germany. I am not sure when they came to the United States but it was after 1739. Their father Phillip was in Colonel Washington army at the end of Braddocks defeat,this was the French and Indian war. I have other information about Martin but not much on Johannes, all I have is he was born around 1730 in Germany and was married around 1762 West Virgina and died around 1812 in Ohio. Phillip's father was Phillip also born around 1672 and his father was Martin Maurer born around 1642 in Germany. Hope this is helpful, if you have any addition information that you can add please notify me.