On 31 Mar 1776 Bertier received his PhD from the University of Nancy under the name, Claudius Antonius Bertier. Her used that version of his name frequently throughout his life.
A letter dated 28 May 1783 from Baron De Feriet in Versailles was received by Benjamin Franklin asking for a letter of recommendation for "M. Berthier" fils (son), who proposes to establish a commercial house in Philadelphia; his parents anxious that the young man should have one person in Philadelphia to whom he may apply for advice and assistance. "Une récommendation de M francklin Pour le sr. Berthier fils Negt de Nancy qui Passe a Philadelphie pour y Etablir une maison de Commerce." (A recommendation of Ms. Franklin For sr. Berthier Negt son of Nancy Goes to Philadelphia to establish a house of commerce.)
The 2 Oct 1784 The Pennsylvania Packet front page contains the first known advertisement for the Bertier fils aine store in Philadelphia.
Macpherson's 1785 Philadelphia directory give his business as "Fils Aîné" (Eldest Son) with owner as Bertier on Front between Market and Archer.
Bertier was a supporter of the arts in Philadelphia. He was a subscriber to William Brown's, flautist, "Three Rondos". The subcription of $2 and one each to Therese Bertier and Marie Bertier in Nantz. Article provides address in 1785 ad 1791:
"Mr. C. A. Bertier. [1785: Bertier, Fils Aine, 6, Front-street] 1791: C A. Bertier & Co., merchants, 4, No. Third St."
In 1791 Claude-Anotoine Bertier was among subscribers to a new theater to be built on Sixth Street in Philadelphia. One share was three hundred dollars and the theater opened in 1794.
On 29 Nov 1788 Bertier married Sarah Bartram, daughter of Isaac Bartram and granddaughter of John Bartram, the father of a American botany and co-founder of the American Philosophical Society with Benjamin Franklin. Dolley Payne, later to be Dolley Madison, First Lady of the United States, wrote a letter from Philadelphia in Dec 1788 where she referred to this marriage:
"A charming little girl of my acquaintance & a Quaker too ran off & was married to a Roman Catholic the other evening—thee may have seen her, Sally Bartram was her name."
During the summer of 1793 a fierce plague of yellow fever ran rampant through Philadelphia and Bertier fell victim to it. Elizabeth Drinker wrote in her journal:
"Sept. 14. The sickness in ye City by no means abated. Bertier, and others dead."
So many were dying common graves were used in city parks to bury the dead. By Nov 1793, his widow was printing notices for the estate in the Philadelphia paper once the plague had subsided.
On 31 Mar 1776 Bertier received his PhD from the University of Nancy under the name, Claudius Antonius Bertier. Her used that version of his name frequently throughout his life.
A letter dated 28 May 1783 from Baron De Feriet in Versailles was received by Benjamin Franklin asking for a letter of recommendation for "M. Berthier" fils (son), who proposes to establish a commercial house in Philadelphia; his parents anxious that the young man should have one person in Philadelphia to whom he may apply for advice and assistance. "Une récommendation de M francklin Pour le sr. Berthier fils Negt de Nancy qui Passe a Philadelphie pour y Etablir une maison de Commerce." (A recommendation of Ms. Franklin For sr. Berthier Negt son of Nancy Goes to Philadelphia to establish a house of commerce.)
The 2 Oct 1784 The Pennsylvania Packet front page contains the first known advertisement for the Bertier fils aine store in Philadelphia.
Macpherson's 1785 Philadelphia directory give his business as "Fils Aîné" (Eldest Son) with owner as Bertier on Front between Market and Archer.
Bertier was a supporter of the arts in Philadelphia. He was a subscriber to William Brown's, flautist, "Three Rondos". The subcription of $2 and one each to Therese Bertier and Marie Bertier in Nantz. Article provides address in 1785 ad 1791:
"Mr. C. A. Bertier. [1785: Bertier, Fils Aine, 6, Front-street] 1791: C A. Bertier & Co., merchants, 4, No. Third St."
In 1791 Claude-Anotoine Bertier was among subscribers to a new theater to be built on Sixth Street in Philadelphia. One share was three hundred dollars and the theater opened in 1794.
On 29 Nov 1788 Bertier married Sarah Bartram, daughter of Isaac Bartram and granddaughter of John Bartram, the father of a American botany and co-founder of the American Philosophical Society with Benjamin Franklin. Dolley Payne, later to be Dolley Madison, First Lady of the United States, wrote a letter from Philadelphia in Dec 1788 where she referred to this marriage:
"A charming little girl of my acquaintance & a Quaker too ran off & was married to a Roman Catholic the other evening—thee may have seen her, Sally Bartram was her name."
During the summer of 1793 a fierce plague of yellow fever ran rampant through Philadelphia and Bertier fell victim to it. Elizabeth Drinker wrote in her journal:
"Sept. 14. The sickness in ye City by no means abated. Bertier, and others dead."
So many were dying common graves were used in city parks to bury the dead. By Nov 1793, his widow was printing notices for the estate in the Philadelphia paper once the plague had subsided.