The papers, 1774-1814, contain correspondence from prominent political and military figures of the time, including over 300 pieces of correspondence from George Washington. Subjects include recruitment, troop movements, appointment of officers, pay, courts-martial, morale, discipline, desertion, and British prisoners of war. There are numerous warrants, petitions, guard reports, and returns. Many letters concern provisions, arms, and ammunition. The letters relate primarily to the details of military life and the conduct of the war.

The orderly books, 1776-1783, are located on reels 28, 29, and 29B. They contain resolves sent by the Continental Congress and the war office, general orders and appointments from George Washington, and Heat's orders to his commanding officers in the field. The orderly books are general and procedural in nature.

Subjects covered in the orderly books are: army and camp regulations for officers and soldiers, behavior, morale, desertion, discipline, punishment, courts-martial, the abuse of private and public properties (plunder and pillage of fields, gardens, and fences), prisoner-of-war care, health, and sanitation. There are detailed instructions for alarms and the use of arms and ammunition.

There are gaps in the orderly books. There are no orders from July 1778-February 1779, March 1780-January 1781, and December 1782-March 1783. Entries within the volumes are not in strict chronological order, particularly from 23 June 1779-July 1781 during Heath's command of the Lower Hudson district.

Some sections of the orderly books were filmed out of order.

Miscellaneous papers, 1775-1872, located on Reel 29B include non-military materials. There are receipts for Heath's funeral in 1814 and a receipt to Samuel Heath dated 1744 (this item falls outside the nominal inclusive dates of the collection).

The diaries of William Heath, 1775-1804, are located on microfilm reels 30 and 31. There are gaps from December 1798-July 1801 and 22 August 1802-February 1803.

Diary entries during the war include Heath's comments on daily military life. Subjects covered during the war years include location and possible movements of the enemy, main and Northern Army locations, marches, brigade distribution, prisoner escapes, courts-martial, executions, work details, the reenlistment of troops, the personal health of Heath (including his smallpox inoculation on 21 April 1776 and its after effects), and the movements of the French fleet and army. Some battles and skirmishes are also described. Friendly and enemy casualty figures are often listed.

After the war, diary entries refer to global events, including politics, wars, and natural catastrophes, in particular French politics and conflicts between 1789 and 1793. Daily weather reports are given, as are family milestones, i.e., births, marriages, and deaths.

Original volumes 30 and 31 each contained multiple diaries.