If I understand your Edgeworth lineage, it is that you believe your Michael Edgeworth was a brother to Thomas Edgeworth, b c 1876. This latter Thomas Patrick Edgeworth lived in Cook Co., IL., and operated a stone quarry. His father was Patrick Edgeworth [1836-1912]. In my research, I have not been able to identify a Michael Edgeworth as a son of this Patrick Edgeworth. Do you possess some data that establishes such a relationship in this lineage?