Hi! My gggg etc. grandmother's name is listed as Esther Wallace Burnsides. I was told that the branch of the Burnsides with the Wallace in the name are Wallaces and separate from the rest of the Burnsides. I had a one page article at one time that discussed the situation and said it changed, as you indicated, due to the fact that the part of Scotland they were in had too many Wallace's and some were given nicknames to keep them straight. I can't find that article right now. I have moved several times in the last few years and things seem to get misplaced. I will keep looking. Anyway, if it is true there are 2 separate Burnsides.