I have been researching for about 15 years, but didn't begin to fill out my own tree here until a few days ago. I am extremely thorough when I come to a brick wall, and will exhaust every extant record that can be accessed either online or in person. Sometimes, rather than a brick wall, I find a myth in my way, as I'm sure everyone has or will at some point... My question is, in a situation where records are scant, but point to a different reality than one that was invented and published many years ago, how should I approach correcting the myth that has been repeated here?
Specifically, over a century ago, a researcher for a Brown family in Pennsylvania published a book that included speculation that the father of a McCausland/McCaslin man from Scotland, who had married into the Brown family, must have been "Robert" because that was the name of the oldest known son in the younger family. This speculation was then copied and published in a much larger volume of McCausland/McCaslin research, but the second publication failed to mention the speculation caveat! From this mess, folks online here and elsewhere, seem to have identified an actual Robert McCaslin [McCaslin-23] who was born in Scotland at around the right time.
I have compiled all extant land, tax, marriage, military records, etc., built land-ownership maps, and correlated all the data to show that the actual father was likely a man named James McCausland... What is the best way to detach this family from the Scottish Robert McCaslin (who may or may not have actually existed), connect it to a properly-researched "new" progenitor in this country, and ensure that the correction/explanation is seen by the maximum percentage of folks who come here searching for the myth?