Haciendas Agostederito/Pilotes in Aguascalientes, Mexico

What happened to the haciendas? What happened to the people? Where did they go?
Were the haciendas taken over by the government? Who owned the haciendas?
There is a great 1839 church census in the area that includes many ranches.
I am working on the Nieto family of the area. They lived on the ranch by the name of 'Los Bacieros'.