Not much to say about this document, except that it was undeniably drafted by Secretary of State John Quincy Adams:
This was the only Adams-drafted Monroe nomination of the few hundred I saw. It’s anyone’s guess as to why America’s chief diplomat (rather than a presidential secretary, or perhaps Attorney General William Wirt) prepared the document for Monroe’s signature.
I don’t know enough about early nineteenth-century orthography to say for sure whether “Marshall” would have been considered a misspelling of Dumartrait’s new position (it certainly would be now). But contemporary newspapers spelled Dumartrait’s first name “Andrew” rather than “Andriew”/”Andrieu,” so it seems Adams made at least one mistake.