If your grandmother was Maria Valenzuela b. 18 Sep 1898 and she married Benigno Cadena we are talking abou the same family. Their children were Benino, Enrique, Guillermo "Memo", Jesus, Manuel, Refugio, "Coco", Roberto & Socorro. Maria was from El Porvenir which is a very small community close to Ojinaga. She was sister to Juan Nepomuceno Valenzuela who was my husband's great grandfather.