If you've not heard anything, I'll just fill you in on what I've learned lately just starting my research.
Matthew is probably also known as M.N. Keady, son of Moses. Moses is also my great grandfather. Moses had another son, (among 6 children--one who died at age 2) Samuel Renwick Keady. He is my great grandfather. His son is Robert Sr, my granddad. Robert Sr had four children. Robert Jr, who is nearing the end of his life, Raymond--my father (d.2005), Debbie Eppler (d.2001), and Paul who lives in Vegas.
Moses Keady's dad was also Moses, and his father before him. Moses Keady was a Civil War vet, lived a quiet life after that.
Moses's father came off the boat from County Donegal Ireland. His father, Moses--stayed in Ireleand. Was a well to do farmer there. Hope that helps.