|Source - Chauncey Was Not The Cause Of Many Errors|
See another post from his journal here.
From the Journal of Major Isaac Roach, 1812-1824, published in The Pennsylvania magazine of history and biography, Volume 17:
We had now assembled about 6000 men, aided by Commodore [Isaac] Chauncey's fleet, and they were about 3000, and their fleet not on the Lake. We now had the experiment to repeat, of sending superannuated men of the Revolution to command. As the failure of the aged Patroon, General Van Rensselaer, lost us everything in 1812, so was the age and infirmity of General Dearborn the cause of many errors.