Probably a different McDade family. Looked up the Hamilton Advertiser today and the amount of McDade obituaries from the Hamilton, Blantyre area are more than a few. My cousin and her friends from Blantyre are researching info re the 1st World War, AND came across some interesting family stories.
Some of the McDades went to Australia and others to New York. We are the last in Paisley
Who is the McDade in your background? Blantyre McDade who ended up in Paisley Scotland