I am trying to build a family tree for my children and don't have alot of history on my father in law's family. My father in law's father was also named Marcos Gabaldon and he owned a ranch in the Monticello Canyon area. His wife was named Mercedes and they lived in Monticello until he passed. He was struck by lightening and passed at a young age. If anyone has any information please post it on the message board. Thank You.