Was alexander hamilton involved in the constitution writing

Alexander Hamilton sat on the committee that wrote the new constitution, but he did not play a large role in the actual writing of the constitution. He did, however, play a large role in the development of the new constitution. The committee that was tasked with developing the new constitution was made up of representatives from the thirteen states that made up the United States of America. The Articles of Confederation was not an effective means of governing the USA. The different states did not agree on the issues of justice and finance. 

After the American victory, many loyalists either moved to Canada or back to Great Britain. Some left for British colonies in the Caribbean and beyond as well.