New member intro

Hello , to everyone in the group my name is Connie and I am starting my work on my family in Lagos de Moreno Jalisco, not sure how to go about this and will appreciate any and all help and advice. my GGGG grandfather Juan De Dios Velasques b. abt 1806 Married Marcela Cervantes b. abt 1806 in Santa Maria De Los Lagos on 30 Aug 1826.
Thank You for any information on where and how to start my search in Mexico.