Henry Dearborn was a major who had been exchanged and appointed to the 3rd New Hampshire Regiment. He eventually commanded a 300 man light infantry battalion composed of drafts from the five Continental brigades (60 men drafted from each brigade) under Gates. His journal gives a good account of some aspects of the American side of the campaign. The journal also contains information on the Monmouth Campaign of 1778 for those looking for primary source information about that campaign.
Henry Dearborn’s Journal