Files uploaded and last name mystery

I uploaded 4 files today for the Surez paternal great grandparents.

In the process of finalizing these charts, I discovered an interesting problem. All of the baptismal certificates of the children of Jose Luis Suarez list their paternal grandparents as Marcelo Suarez and Marcela Sanches. I could only find 1 record for a child of these parents - Jose Santiago Suarez born 25 julio 1814 and baptized 18 julio at El Sagrario. But I did find records for 4 other children, including Jose Norato, that list the mother as Marcela Sanches but give the name of the father as Marcelo Placido. Of course there are no records further back for either Marcelo Suares or Marcelo Placido. Some of the Placido baptimal certificates list his father as unknown, 1 as Jose Placido difunto and several as Xavier Placido. All of them list the paternal grandmother as Maria Antonia Reyes. The record for the grandson Jose Santiago Suarez, lists his paternal grandfather's name as Jose Maria Garcia - but I am convinced that this is the same family, because it gives the same name for his maternal grandparents.

Anyway, any suggestions are appreciated. I am guessing it is too much to hope that anyone is familiar with this family.

Oh, a padrino at the baptism of Jose Santiago is Tomas Placido. When I look at records for his children, they all show paternal grandparents as Xavier Placido and Maria Antonia Reyes. Apparently Tomas and Marcelo were brothers.