The Mystery of the Unknown Grandfather/El Misterio del Abuelo Desconocido

English:

Twice I have tried to trace back my last name past 1862, but every time I arrive at a dead end. While I have been able to trace my parents’ other last names further back (Ruiz Velasco, Aguirre, Aguirre), Ramos still remains a mystery for me, and thus I turn to you.

The man in question is Inocencio Ramos. Inhabitant of Sayula, Jalisco. I have struggled to find his birth certificate in order to discover who his parents were.

What I know:

His wedding certificate dated August 24, 1885 with Eligia Alvarez (Padilla). It says he is the legitimate son of Maria Merced Ramos and an unknown father. It says he is 22, putting his birth year in 1862-63. It says Eligia (23) is older than him.
Link: https://familysearch.org/ark:/61903/3:1:9392-GL3G-B?i=685&cc=1874591&cat=291444

Eligia’s baptismal certificate has her being born in December 1862. Inocencio must have been born afterwards.
Link: https://familysearch.org/ark:/61903/3:1:9392-G28W-K?i=36&cc=1874591&cat=291444

Here is where it gets tricky. As follows are the birth certificates of Inocencio and Eligia’s children. They are important mainly because I want to know who Inocencio’s father was.

Margarita Ramos (1887). Paternal grandparents: Maria Ramos & unknown.
Link: https://familysearch.org/ark:/61903/3:1:9392-GL9J-95?mode=g&i=221&cc=1874591

Margarita Ramos (1889). Paternal grandparents: Francisco Ramos & Merced Orosco.
Link: https://familysearch.org/ark:/61903/3:1:9392-GL9J-TV?mode=g&i=431&cc=1874591

Ruperto Ramos (1892). Paternal grandparents: Jose Ramos & Merced Orosco.
Link: https://familysearch.org/ark:/61903/3:1:9392-GR9S-7J?mode=g&i=142&cc=1874591

Maria Bartola (1894). Paternal grandparents: Jose Maria Ramos & Maria Merced Orosco.
Link: https://familysearch.org/ark:/61903/3:1:9392-GR99-RQ?mode=g&i=323&cc=1874591

Francisco (1896). Paternal grandparents: Jose Maria Ramos & Maria Merced Orosco
Link: https://familysearch.org/ark:/61903/3:1:9392-GRJK-F?i=175&cc=1874591&cat=291444

Maria Paz (1900). Paternal grandparents: Jose Maria Ramos & Maria Merced Orozoco
Link: https://familysearch.org/ark:/61903/3:1:9392-GRJC-8?mode=g&i=549&cc=1874591&cat=291444

As you can guess I am confused as to who the grandfather could be. Why was Maria’s last name Ramos before the spouse was known? Could it be that Francisco and Jose Maria are brothers? Are one of them the father? I would appreciate any help in this regard. Maybe a search for Inocencio with a different last name to a mother Maria Merced of a different last name around 1863
.
Thank you!

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Espanol

Dos vezes e tratado de buscar mis antepasados mas alla de 1862, pero cada vez no puedo. Aunque mis otros apellidos an sido mas facil (Ruiz Velasco, Aguirre y Aguirre), me atoro siempre con Ramos, y por eso les pido ayuda.

El hombre que me confunde es Inocencio Ramos, originario y vecino de Sayula, Jalisco. E tratado (sin logro) buscar su registro de bautismo o nacimiento civil.

Lo que se:

Su registro de matrimonio en el 24 de Agosto, 1885 con Eligia Alvarez (Padilla). Dice que es hijo legitimo de Maria Merced Ramos y de padre desconocido. Dice q tiene 22 anos de edad. Eso pondria su nacimiento en 1862-63. Dice que Eligia (23) es mayor que el.
Link: https://familysearch.org/ark:/61903/3:1:9392-GL3G-B?i=685&cc=1874591&cat=291444

EL registro de bautismo de Eligia la tiene nacida el Diciembre 1862. Ynocencio seria nacido despues.
Link: https://familysearch.org/ark:/61903/3:1:9392-G28W-K?i=36&cc=1874591&cat=291444

Aqui es donde se pone complicado. Siguen los registros bautismales de sus hijos. Son importantes por su referncia a los abuelos paternos.

Margarita Ramos (1887). Abuelos paternos: Maria Ramos & unknown.
Link: https://familysearch.org/ark:/61903/3:1:9392-GL9J-95?mode=g&i=221&cc=1874591

Margarita Ramos (1889). Abuelos paternos: Francisco Ramos & Merced Orosco.
Link: https://familysearch.org/ark:/61903/3:1:9392-GL9J-TV?mode=g&i=431&cc=1874591

Ruperto Ramos (1892). Abuelos paternos: Jose Ramos & Merced Orosco.
Link: https://familysearch.org/ark:/61903/3:1:9392-GR9S-7J?mode=g&i=142&cc=1874591

Maria Bartola (1894). Abuelos paternos: Jose Maria Ramos & Maria Merced Orosco.
Link: https://familysearch.org/ark:/61903/3:1:9392-GR99-RQ?mode=g&i=323&cc=1874591

Francisco (1896). Abuelos paternos: Jose Maria Ramos & Maria Merced Orosco
Link: https://familysearch.org/ark:/61903/3:1:9392-GRJK-F?i=175&cc=1874591&cat=291444

Maria Paz (1900). Abuelos paternos: Jose Maria Ramos & Maria Merced Orozoco
Link: https://familysearch.org/ark:/61903/3:1:9392-GRJC-8?mode=g&i=549&cc=1874591&cat=291444

Como pueden observar estoy confundido a quien podria ser el abuelo. Porque la madre se conocia como Ramos en su registro de bodas pero sin saber el padre? Podrian ser Francisoc y Jose Maria hermanos? O uno de ellos el padre? Aprecio cual quier ayuda en esto. Tal vez, una busca por Inocencio bajo otro apellido con una madre Maria Merced de otro apellido naciod en 1863 seria bueno.

Perdonen la ortografia. Muchas gracias!