I am looking for the family of Alexander Renfrew, born in Scotland probably around the 1730s. He married Margaretta Brown. At some point, he immigrated to Belfast,Ireland. He had four children that I know of: Mary Ann Renfrew (b. June 6, 1763, Isaac Renfrew, James Renfrew, and another son. Isaac, James and Mary Ann Renfrew (married Alexander Shaw) immigrated to Pennsylvania and Ohio.