Catholics in the American Revolution

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Nor, perchance did the fact which We now recall take place without some design of divine Providence. Precisely at the epoch when the American colonies, having, with Catholic aid, achieved liberty and independence, coalesced into a constitutional Republic the ecclesiastical hierarchy was happily established amongst you; and at the very time when the popular suffrage placed the great Washington at the helm of the Republic, the first bishop was set by apostolic authority over the American Church. The well-known friendship and familiar intercourse which subsisted between these two men seems to be an evidence that the United States ought to be conjoined in concord and amity with the Catholic Church. And not without cause; for without morality the State cannot endure-a truth which that illustrious citizen of yours, whom We have just mentioned, with a keenness of insight worthy of his genius and statesmanship perceived and proclaimed. But the best and strongest support of morality is religion.

Pope Leo XIII

American Catholics, a very small percentage of the population of the 13 colonies, 1.6 percent, were overwhelmingly patriots and played a role in the American Revolution out of all proportion to the small fragment of the American people they represented.  Among the Catholics who assumed leadership roles in the fight for our liberty were:

General Stephen Moylan  a noted cavalry commander and the first Muster Master-General of the Continental Army.

Captains Joshua Barney and John Barry,  two of the most successful naval commanders in the American Revolution.

Colonel John Fitzgerald was a trusted aide and private secretary to General George Washington.

Father Pierre Gibault, Vicar General of Illinois, whose aid was instrumental in the conquest of the Northwest for America by George Rogers Clark.

Hercules Mulligan-Ran a haberdashery in New York City during the War which catered to British officers, and all during the occupation of that community by the British was a spy for George Washington.  Washington cleared him of suspicion of Loyalism by having breakfast with him the day after the evacuation by the British of New York in 1783.

Father Eustache Lotbiniere who served as chaplain to one of two Continental regiments, known as Congress’ Own, of French Canadiens.

Nurse Mary Waters’, an Irish immigrant, work in the Continental Army hospitals was praised by Surgeon General Benjamin Rush.

Thomas Fitzsimons served as a Pennsylvania militia company commander during the Trenton campaign.  Later in the War he helped found the Pennsylvania state navy.  After the War he was one of the two Catholic signers of the U.S. Constitution in 1787

Colonel Thomas Moore led a Philadelphia regiment in the War.

Colonel Morgan Connor served as Adjutant General of the Continental Army in 1777.

Major John Doyle led a group of elite riflemen during the War.

The list could go on at considerable length.  Figures on how many Catholics served in the Continental Army or the American militias is speculative as records of religious affiliations were not normally kept.  The British sometimes noted that a large number of Irish Catholic immigrants were enlisted in the Continental Army and that Gaelic was frequently heard in American camps.  From anecdotal evidence my guess would be at least five percent, far in excess of the Catholic percentage of the population.

The foreign volunteers who came to fight for our freedom were overwhelmingly Catholic, including LaFayette,  Duportail and Pulaski.  Of course the French troops were almost all Catholic, and there were tens of thousands of them who saw service in the US.  Catholic Spain was also allied with the Americans during the Revolution.  The first mass in Boston was a funeral mass for a French soldier, with members of the Continental Congress in attendance.  Washington on occasion attended mass during the War along with other Founding Fathers.

After the War Washington paid tribute to the role Catholics played in the American Revolution:

As mankind become more liberal they will be more apt to allow that all those who conduct themselves as worthy members of the community are equally entitled to the protection of civil government. I hope ever to see America among the foremost nations in examples of justice and liberality. And I presume that your fellow-citizens will not forget the patriotic part which you took in the accomplishment of their Revolution, and the establishment of their government; or the important assistance which they received from a nation in which the Roman Catholic faith is professed.

Archbishop John Carroll, the first Catholic bishop in the independent United States, and the brother of Daniel Carroll, a signer of the Constitution, and cousin of Charles Carroll of Carollton who signed the Declaration of Independence, summed up Catholic participation in the Revolution:

Their blood flowed as freely (in proportion to their numbers) to cement the fabric of independence as that of any of their fellow-citizens: They concurred with perhaps greater unanimity than any other body of men, in recommending and promoting that government, from whose influence America anticipates all the blessings of justice, peace, plenty, good order and civil and religious liberty.

More to explorer

Bob Hope and the Mayflower Compact

Under the Julian Calendar in effect at the time, the Mayflower Compact was signed on November 11, 1620.  Under the Gregorian Calendar


  1. Indeed, I haven’t read the comments, but this takes me immediately back to the Vietnam era. Peter Paul and Mary recorded this, and if I remember my research at the time it was an old English folk song titled “Gone the Rainbow, Gone the Dove”. I suspect it long predates the Revolutionary War. We had a folk group, “Group Therapy” who used words similar, to PP&M (which are all over the web). It is and was a gorgeous tune with moving words adaptable to a father, husband or son. – Oh fond, melancholy memories.

  2. Oh, yes. I take Catholic’s part in the founding of the country for granted. Ask any 4th degree Knight.

  3. Stars and Stripes Forever on the Fourth. I’m honored.

    Anyway, it’s just as well. Naming a kid Hercules Mulligan would just be an unfair leg up in life.

  4. Did not Fray Junipero Serra send money to the Americans, as did the society ladies of Havana.

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