Intentional Variation in of birth date between Church Baptism vs. Civil Birth Certs

Hello All,

I came across something of curiosity with my paternal grandfather's birth information. While the majority of his family was born in the Fresnillo, Zacatecas area, he was born in Cuidad de Durango in 1908.

Until recently, I have been using church baptism certs to document my family history, but more recently, I have been also searching for civil birth and marriage registrations. My grandfather, traditionally, has had the birthday of December 2nd. That is what he celebrated when he was alive and what the church baptism cert states. However, when I located his civil birth registration, recently, it states his birthday is December 25th (Christmas)...which is quite a difference in days.

According to his civil registration, he was born four days before the registration (registration was Dec. 29th) AND the document also CLEARLY shows in the title his birthday of December 25th.

His baptism information shows he was baptised on January 6th and he was born on "2 de Dbre". I have closely looked at the image and it does not have a lightly written "5"...it was intended to be Dec. 2nd.

So, here is my question, has anyone run into sitautions where the church and civil record reflect something like this? More specifically, has anyone seen a birthday on Christmas intentionally changed to something else on a Church baptism cert?

Thoughts and input is welcomed.....

Arthur Medrano