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George Rogers Clark Flag

The George Rogers Clark Flag is a red and green striped banner in the model of American Flags commonly associated with George Rogers Clark, although Colonel Clark did not campaign under these colors. The “Clark” flag was made in Vincennes, Indiana, and likely flew over Fort Sackville even before Clark arrived.

On 12 November 1778, Vincennes resident François Bosseron recorded the following items under the heading "1778 fournie au Capne Helm pour les Compagne des Etats":[1]

  • Paid to St. Marie for 5 ells of red serge for the company flag at 9 livres; 45 livres
  • Paid to M. Dajenett for 334 ells of green serge at 10 livres; 37 Livres 10
  • Paid to Madame Goderre for the making of the flag; 25 Livres


This flag was designed by Captain Leonard Helm, who held Fort Sackville until forced to surrender to Lieutenant Governor Henry Hamilton. Although historians are not sure exactly what it looked like, most US flags were based on the “stripes of rebellion.” Helm’s design was clear enough that Hamilton recognized two on his approach to Vincennes, one on a boat and one on the fort.[4] One of these may have been Bosseron's flag, although Father Pierre Gibault may have brought a flag with him.[5] Captain Helm had earlier brought an American flag to Ouiatenon, so it seems likely he would have also brought one to Vincennes. When Hamilton took the fort, he allowed Helm to take down "the continental flag" before raising the British flag.[6]

Clark flag displayed inside the George Rogers Clark National Historic Park

The choice of a red and green flag instead of red and white flag remains a mystery. It is possible that there simply was not enough white serge available in Vincennes at the time. It is worth noting, however, that whereas Colonel Clark had offered a red (war) or white (peace) belt to Indians in Cahokia, Captain Helm presented the Wabash Indians with a red or green belt.[7] On December 27 at Vincennes, a Piankeshaw chief presented Lt-Gov Hamilton with red and green wampum, which was said to represent the Wabash River.[8] The stripes, themselves, were a defining feature of American flags even before the Revolution, and many military banners used by Americans featured stripes of differing colors.[9] Records describe flags similar or identical to this in the 13 colonies.[10] It is possible that Busseron ordered the banner for his own militia unit in Vincennes, when they declared for the Americans.

Which flag Clark’s men actually rallied around is not known. In his memoir, he says he had 10 or 12 sets of colors when they took Vincennes. Some theorize that he probably marched under the flag of Virginia, his home state, but Lt-Gov Henry Hamilton refers to several "American" flags in his journal entries as he leads his expedition down the Wabash River, including a "rebel flag" he received at Ouiatenon on 4 December. When Clark arrived in Vincennes on 23 February 1779, he used many banners to give the impression of a large army. Clark's Captain Bowman notes in his journal that an "American flag" was raised over Ft Sackville on 25 February 1778, but does not describe it.

Presentation room at Locust Grove, Clark's final residence.

Of all the flags which may have been used during Clark's Illinois campaign, the 13-striped, red and green banner is the only banner historically documented, and was one of the first “American Flags” flown in the modern State of Indiana. The pattern has been flown by Indiana National Guard units deployed in both Iraq and Afghanistan.[11] Even though Clark, himself, probably never used it, the flag bears his name and is sold by flag retailers as a "George Rogers Clark flag." It is often flown at events in Indiana and Illinois to represent Clark's historic ties with those states. A red and green flag is still flown at the George Rogers Clark National Historic Park, and at the Locust Grove plantation near Louisville, Kentucky, where George Rogers Clark died.


  1. Somes, pg 75, records this same transaction, but gives the date as 2 November 1780. He speculates that the flag was made for the campaign of Augustin de La Balme. However, Busseron's original ledger clearly dates the transactions in 1778. It is in the Lasselle Collection, V91, Manuscripts Division, Indiana State Library.
  2. English translation in Shaw, V25 p237
  3. The word Busseron uses for flag is "pavillon," which might imply a national standard or ensign. See Barnhart, pg 201, fn 43. See also entry in Wiktionary.
  4. Hamilton's journal, 17 December 1778, "on my approach to St. Vincennes, was not a little surprized to see… the American flag at the same time being displayed on the Fort."
  5. Hamilton's Journal, 14 October 1778 (see External Links).
  6. Barnhart, 202
  7. Hamilton's journal, 14 October 1778 (evening)
  8. Hamilton's journal, 27 December 1778
  9. Mastai, pg 25
  10. Mastai, pg 25, quotes a record of a Philadelphia ship in 1775 listing "A Union Flagg, Green and Red, 13 stripes."
  11. The Hoosier Patriot, March 2010


  • Barnhart, John D. and Riker, Dorothy L. Indiana to 1816. The Colonial Period. ©1971, Indiana Historical Society. ISBN 0-87195-109-6
  • Mastai, Boleslaw and Marie-Louise D'Otrange 'The Stars and the Stripes. The American Flag as Art and as History from the Birth of the Republic to the Present' ©1973. Alfred A. Knopf, New York. ISBN 0-394-47217-9
  • Shaw, Janet P. (editor) Account Book of Francis Bosseron Edited by Janet P. Shaw 1929. In the original French and in translation.
  • Somes, Joseph Henry VandeBurgh. Old Vincennes Graphic Books, New York. 1962. LCCN 62-18417.

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