See R. Newbold, Albany Congress and the Plan of Union of 1754 (1955).
The Congress is notable for producing Benjamin Franklin's Albany Plan of Union, an early attempt to form a union of the colonies that would remain under the authority of the British crown. Part of the Albany Plan was used in writing the Articles of Confederation, which kept the States together from 1781 until the Constitution. It was the first time that all the colonies had been together.
For the common defence, it was proposed that two forts be built in Iroquois territory, and that three others be raised around Crown Point to stop an invasion from Canada. As had happened in the past, the colonies were unwilling to share the cost or the centralized planning that would be required.
The Union was planned to include all the British North American colonies, except Delaware and Georgia. The plan called for a single executive (President-General) to be appointed by the King, who would be responsible for Indian relations, military preparedness, and execution of laws regulating various trade and financial activities. It called for a Grand Council to be selected by the colonial legislatures where the number of delegates would be based on the taxes paid by each colony. Even though rejected, some features of this plan were later adopted in the Articles of Confederation and the Constitution.
Benjamin Franklin said of the plan in 1789:
On Reflection it now seems probable, that if the foregoing Plan or some thing like it, had been adopted and carried into Execution, the subsequent Separation of the Colonies from the Mother Country might not so soon have happened, nor the Mischiefs suffered on both sides have occurred, perhaps during another Century. For the Colonies, if so united, would have really been, as they then thought themselves, sufficient to their own Defence, and being trusted with it, as by the Plan, an Army from Britain, for that purpose would have been unnecessary: The Pretences for framing the Stamp-Act would not then have existed, nor the other Projects for drawing a Revenue from America to Britain by Acts of Parliament, which were the Cause of the Breach, and attended with such terrible Expence of Blood and Treasure: so that the different Parts of the Empire might still have remained in Peace and Union.
An apparently complete list is given at Early Recognized Treaties With American Indian Nations