John Baptiste Carone Brognard was born about 1761 in Salino Province of Franche Comté; Jurisdiction of Besancon in France. He was educated for the profession of medicine in Paris. At the age of eighteen years, and a little before he graduated in medicine, he entered the French military service as a volunteer, and was commissioned as a sergeant in a corps of grenadiers. He came to America with his corps during the Revolution. Medical men being in demand, he was detailed to surgeon's duty in the medical staff, in the Legion of the Duke de Lauzun(1) and continued in the service to the close of the war.

Having nearly served his time in the corps to which he was attached and being determined to settle in America, he sought a release from further service. That he might not be obliged to return to France with his comrades in arms, his mother sent him money to purchase his discharge. The following is a copy:

MILITARY DISCHARGE
"We the undersigned certify to all whom it may concern that we have given a full discharge to the within named John Baptiste Brognard to go wheresoever he sees fit. Said Brognard is Sergeant in the Grenadier Company in the Corps of Foreign Volunteers of Lauzun, a native of Salino in the Province of Franche Comté in the Jurisdiction of Besancon, aged twenty-two years, five feet, seven inches in height, oval face, aquiline nose, black eyes, chestnut hair and eye brows, a scar under his right eye and slightly marked with Small Pox.
Done at Wilmington the first day of the Month of May, 1783. Trentman.

The said Brognard has served very faithfully in the Corps since the 13th Nov 1778, until this time and has obtained his discharge by the payment of Three Hundred Pounds which he has paid into the treasury of the Corps."

Being now released from military obligations he gave himself to the pursuit of his profession in civil life. He first settled in Burlington, his mother in France supplying him with funds necessary for his support, until he was established in practice.

He married Sarah Smith of Burlington, to whom he had become attached, while in the military service, his betrothal to whom was the leading motive for his settlement in this country. He soon became distinguished as a physician and surgeon and acquired a large and profitable practice, possessing in an eminent degree the confidence of the people. He did not long remain in Burlington, but removed to Black Horse, (now Columbus) where he spent the remainder of his life. He died on the 17th of April, 1823, aged about sixty-two. His remains, with those of his son Frank, were buried in the Friends' burying place at Mansfield. No monument.

Footnote
1. This legion upon its arrival at Newport, July 10th, 1780, Irving says, was especially admired, having gained reputation in the preceding year by the capture of Senegal. The American struggle had inspired in many of the young French nobility a feeling of adventure and romance, and they sought this new field for the exercise of the traditional heroic and chivalrous courage of their fathers.

Copied exactly from the out-of-copyright book:
Stephen Wickes, and Jonathan Dickinson, "History of Medicine in New Jersey: And of Its Medical Men, from the Settlement of the Province to A.D. 1800" (M.R. Dennis & Company, 1879), 164-166.
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Additional sources for the information displayed on the NSSAR Patriot & Grave Record:
1. Stephen Wickes, and Jonathan Dickinson, "History of Medicine in New Jersey: And of Its Medical Men, from the Settlement of the Province to A.D. 1800" (M.R. Dennis & Company, 1879), 164-166.
2. John Baptiste Brognard, Revolutionary War pension file on Fold3.com (https://www.fold3.com/image/13927884 : accessed 21 September 2015).
Includes marriage to Mary Herd, and relationship to daughter Maria Dunphy.
3. True American (Trenton, New Jersey), Mortuary Notice, published Monday, 13 September 1813, Vol. XIII, Iss. 653, pg. 3; GenealogyBank.com. "Died on the 2d inst. in her twenty-first year, Miss SARAH BROGNARD, eldest daughter of Dr. John Brognard, of Burlington county, who is represented as one of the most amiable of her sex." 2d inst. would refer to 2 September 1813, the second day on the month published. Age 21 would make her born about 1792.
4. UNITED STATES GAZETTE, Whole Number Vol. LVIII, No. 7761, New Series Vol. VI, No. 915, Monday, 19 March 1821, Page-Brognard marriage, page 2, col. 6. "MARRIED. On Thursday evening, the 15th inst. by J. N. Barker, Esq. Dr. ASAHEL C. PAGE, to Miss MARY LOUISA, daughter of Dr. John Brognard, all of Blackhorse, New Jersey."
5. J. T. White, The National Cyclopædia of American Biography: Being the History of the United States as Illustrated in the Lives of the Founders, Builders, and Defenders of the Republic, and of the Men and Women who are Doing the Work and Moulding the Thought of the Present Time, Volume 17 (1921), 325.
"Abram Okie married Abigail the daughter of Jean Baptiste Carone Brognard who was born in Salino Province of Franche Comte France in 1761 He enlisted as a volunteer in the Grenadier Corps of the Due de Lauzun and served in America in the Revolutionary War"
6. Boston Daily Advertiser (10 May 1822) and [Boston] Weekly Messenger (16 May 1822); online at GenealogyBank.com. "DIED. At Black Horse, Burlington County, (NJ.) 5th April, Mr. Joseph Brognard, son of Dr. Brognard, of that place, and long a respectable merchant of Philadelphia, from which he removed for the benefit of his health."