Sometimes when you are looking for one thing, you get a nice surprise and find something else....
I was looking through the Jucuapa, Usulutan records for information about my great-grandparents when the signature above started popping up! The signature is my grandfather's Jorge (George) Villalba!
Evidentially, he was involved in the Jucuapa City government during the early 1950's. Family lore has him being mayor during the huge 1951 earthquake that destroyed a lot of the city. In Jucuapa, when a death was reported, there was an informal inquiry into it, just to make sure there was no foul play. Once the report was written up, members of the committee had to sign to say they went through the records and it was written up correctly. From 1951 through 1954, the above signature is one of several that appear after the report for each record.
Side note that has nothing to do with my family history:
The reports often list how many legitimate and illegitimate children a person left behind. While going through this microfilm, it has become an... um... interest of mine to look to see the total number. There are a lot of people with 13 (or less, but 13 seems to be a magic number). However, the record holders are 21 (!) and 32 (!!)