Original sentence: When Scammel was killed in action on October 1, the light infantry companies of the second brigade were reorganized into two battalions commanded by Lt-Col John Laurens (the five Connecticut and one New Hampshire provisional companies), and Hamilton (the New York companies and the four Massachusetts provisionals)
Edited sentence: When Scammel was killed in action on October 1, the light infantry companies of the second brigade were reorganized into two battalions, the first of five Connecticut and a New Hampshire provisional companies commanded by Lt-Col John Laurens, and a second of the New York companies and the four Massachusetts provisionals commanded by Hamilton