There was a large Masonic presence with the founding of the United States.
Signers of the Declaration of Independence:
William Ellery of Rhode Island; First Lodge of Boston
Benjamin Franklin of Pennsylvania; Grand Master of Pennsylvania
John Hancock of Massachusetts; Merchants Lodge No.277 (Quebec), Saint Andrew's Lodge (Boston)
Joseph Hewes (Howes) of North Carolina; Unanimity Lodge No.7
William Hooper of North Carolina; Hanover Lodge, Masonborough, NC
Thomas McKean of Delaware; Perseverance Lodge, Harrisburg, PA
Robert Treat Paine of Massachusetts; Massachusetts Grand Lodge
George Walton of Georgia; Solomon's Lodge No.1 Savannah, GA
William Whipple of New Hampshire; St. John's Lodge, Portsmouth, NH
And 6 more possible. It has been speculated that Thomas Jefferson was a Mason, however there is no evidence to back this claim.
Signers of the Constitution:
Gunning Bedford, Jr. of Delaware; 1st Grand Master of Delaware
John Blair of Virginia; 1st Grand Master of Virginia
David Brearley of New Jersey; 1st Grand Master of New Jersey
Jacob Broom of Delaware
Daniel Carroll of Maryland
Jonathan Dayton of New Jersey; Temple Lodge No.1 Elizabethtown, NJ
John Dickinson of Delaware
Benjamin Franklin of Pennsylvania; Grand Master of Pennsylvania
Nicholas Gilman of New Hampshire; St. John's Lodge No.1 Portsmouth, NH
Rufus King of Massachusetts; St. John's Lodge, Newburyport, MA
James McHenry of Maryland; Spiritual Lodge No.23 MD
William Paterson of New Jersey; Trenton Lodge No.5
George Washington of Virginia; Lodge of Fredericksburg, Charter Master of Alexandria Lodge No.22
There is a possibility that several others may have been members.
Continental Army:
James Clinton, Brigadier General; Warren Lodge No.17
Elias Dayton, Brigadier General; Military Lodge No.19 Pennsylvania
Joseph Frye, Brigadier General; Grand Lodge of Massachusetts
Mordecai Gist, Brigadier General; Lodge No.16 Baltimore, Grand Master of South Carolina
John Glover, Brigadier General; Philanthropic Lodge
John Greaton, Brigadier General; Masters Lodge of Albany
Nathanael Greene, Major General
Edward Hand, Major General; Military Lodge No.19 Pennsylvania
James Hogun; Brigadier General; Royal Arch Lodge No.3
Henry Knox, Major General
Marquis de LaFayette, (Maréchal de camp; France) Major General
Benjamin Lincoln, Major General; Lodge of St. Andrew, Boston
William Maxwell, Brigadier General; Military Lodge No.19 Pennsylvania
Hugh Mercer, Brigadier General; Lodge of Fredericksburg
Richard Montgomery, Major General; Lodge of Unity No.18 (under Irish Registry; 17th Regiment of Foot)
Peter Muhlenberg, Brigadier General; Royal Arch Lodge No.3
John Nixon, Brigadier General
Samuel H. Parsons, Major General; American Union Lodge, St. john's Lodge No.2 Middletown, CT
John Paterson, Brigadier General; Berkshire No. 5 Lodge, Stockbridge
Israel Putnam, Major General; Crown Point Military Lodge
Rufus Putnam, Brigadier General; American Union Lodge
Arthur St. Clair, Major General; Nova Caesarea Lodge No.10, Cincinnati
John Stark, Brigadier General; Masters Lodge, Albany
Frederick W.A. von Steuben (Inspector General; Prussia) Major General; German Mason, Trinity Lodge No.10 NY, Holland Lodge No.8
John Sullivan, Major General; St. John's Lodge, Portsmouth NH, Grand Master of New Hampshire
Jethro Sumner, Brigadier General; Blandford Butte Lodge, NC
William Thompson, Brigadier General; Royal Arch Lodge No. 3, Philadelphia
James M. Varnum, Brigadier General
George Washington; General and Commander in Chief; Lodge of Fredericksburgh, Charter Master of Alexandria Lodge No.22
George Weedon, Brigadier General; Port Royal Kilwinning Cross Lodge No.2, Lodge of Fredericksburg
Otho H. Williams, Brigadier General; American Union Lodge, Roxbury MA, Maryland Lodge No.27
David Wooster, Brigadier General; Military Lodge of Louisbourg, Hiram Lodge No.1 New Haven, CT
Several more may have been Masons, but no records survive of membership or activity.