Hello, I was doing some research at FamilySearch.org, when I ran across a baptismal entry for George Washington Kidder on the 21st of February, 1841, in Matamoros, Tamaulipas, MX. I was curious, as an Anglo name and family is a bit unusual, so I searched and found this Kidder family forum.
Here is the link to the image of the book and entry. It is the first entry on the right hand page:https://familysearch.org/pal:/MM9.3.1/TH-1-11056-40207-9?cc=...
In brief, it states that a George Washington Kidder of one year, one month and five days of age, legitimate son of Sanforth and Maria Kidder, was baptized on the 21st of February, 1841. The godparents were Daniel W. Smith and Maria Concepcion Villareal.
This may be information that is already known, but just in case, I thought I would pass it along.