Aguilar's from Chimayo, NM

Looking for information on my Grandfather's family his name Isais Aguilar, wife Gregorita his children Alfredo, Manual, Cornelio, Amalia, Casilda, Clytilda. The children were born and raised in Garcia, Co. Isais (not sure of spelling) was born in 1870. My father was Cornelio who passed away in Nov. 1996 (80 yrs)