This is probably a long shot, but I have recently found my grandfathers death cert. It shows that he ( Ladislao Torrez ) was born 1905 in Gomez Palacio, Dur, Mex. and his father ( Sirildo Torrez ) also in Durango, Mex. I have been told that there were numerous siblings: Ramon, Lee, Nellie, Juan, Rosa, Cecilio, Ramona all of which can not be verified. They migrated up to Oklahoma, New Mexico then onto Arizona. Some may have gone to Iowa and South Dakota? This is all that I have at this time, might help...good luck.