“Ring a bell?”
Cannot say that it does. Please repost those orders when you have the the opportunity.
My recollection is that you can find the orders on this website. My recollection is that there are two versions of the orders from different officials, and there might also be a third.
I'm not sure if this site contains the orders to wait for captain Mercer, (or words to that effect) but I know i've seen it.
Happy looking. :)
https://www.nytimes.com/1865/09/11/archives/correspondence-capt-fox-to-lieutgen-scott.html