Rebellion? What rebellion?
I answered your question about what happened to the Douglas Invincibles. They joined the Union army as did the Wide Awakes. I don't doubt that some Minute Men would have joined Confederate forces. Stands to reason. They were formed to protect the South from things like Seward's threat of using the Wide Awakes. It was no idle threat -- you know, of course, how Blair used the Wide Awakes in Missouri in early 1861.
Or attacked the federal troops as they passed through Baltimore in April 1861?
Could be. You got any documentation of that?
The one the Southern states waged between 1861 and 1865. It was in all the newspapers.