I am a genetic link to a Marshall from this line of Marshalls, but cannot tie my Marshall line in with his. He is stuck and so am I at figuring out who Matthew and Andrew's parents are. Andrew (1762-1834) married Martha "Mattie" Shields and Matthew (1767-1848) married Catherine Shields. I assume they are sisters, but haven't proved that either. Others researching this line all assign William Marshall and Elizabeth Armstrong as Andrew and Matthew's parents, but I do not think this is correct. However, I cannot figure it out so I may continue my research to try and tie my Marshall in with this line since a descendant of this line is a Y-DNA link to my father. Any help is appreciated.