So if the article's generations are correct, then Clara Dolores (Arnaiz) Hill's Mother's mother was a daughter of Jose Maximo Simeon Valenzuela.
This book in the profile says that Clara's father's mother (Teresa) came from Spain around Cape Horn, and the ancestry tree referenced in Teresa's profile has the linked records for the Chilean baptism of Teresa's husband Eugenio Arnaiz (Clara's father's father).
page 60
https://books.google.com/books?id=Oav8FO-AMYsC&lpg=PA59&ots...
Then if the 1910 Census says that Dolores Garduna Arnaiz's mother was born in California (father in New Mexico), then Clara's mother's mother (who is Unknown in the tree), would be the daughter of Maximo for the generation numbers to work.
The GENI tree has her 'maiden' name as Baca, but many people misunderstand Spanish name orders..
Look for a Valenzuela daughter who married a Garduna in (probably) California.
The ancestry tree has Clara as Clariza Daria Arnaiz 1884/1960 who married Wellman and Hamilton.
It has Delores Baca b. 15 Apr 1861 d. 12 Mar 1931 the daughter of Jose Manuel Quintana and Maria Manuel Velarde, but no dates or any other info on them (might not be correct)., because the linked 1870 Census in the ancestry profile (which has a California birth/death and the other things that match) also has Delores's parents as Luberto Baca (31 in 1870) and Louisa Baca (25 in 1870) and everyone born in Sonora, New Mexico. So that might be wrong also.
has her husband (paternal grandfather