PENNSYLVANIA AND DELAWARE 299 



and General Roberdeau, securing a leave of absence from 

 the Congress, with his private fortune established a fort An Ardent 

 in Bedford County as protection against the Indians and 

 worked a lead mine there. At the close of the war he 

 retired from business as well as from public life, and 

 settled down in Alexandria, Virginia, where he was fre- 

 quently in the habit of entertaining General Washiugtou. 

 He died in 1795. 



His son, Isaac, grandson of the emigrant of that name, 

 early showed a love for engineering and received the best 

 kind of technical education which the times afforded. 

 In 1791 he acted as assistant engineer in laying out the 

 city of Washington, and later was engaged in canal con- 

 struction in Pennsylvania. In 1813 he was appointed 

 topographical engineer in the regular army, with the 

 rank of major. In this capacity he had charge of the 

 survey which laid out the boundary line between Canada 

 and the United States under the treaty of Ghent. He 

 organized the bureau of topographical engineers in the 

 War Department, in 1818, and remained as its chief until 

 his death in 1829. 



Among the records of Christ Episcopal Church, of Christ 

 Philadelphia, occur the following names of Huguenot Records 

 parents ( first entries alone being given ) : Le Tort, 

 James, 1709 ; Le Boyteau, William, 1711 ; Voyer, Peter, 

 1713 ; Tripeo, Frederick, 1713 ; Chevalier, Peter, 1712 ; 

 Garrigues, Francis, 1721 ; Durell, Moses, 1731 ; Fleury, 

 Peter, 1731 ; Le Dru, Noel, 1732 ; Pinnard, Joseph, 1733 ; 

 Eenardet, James, 1733 j. Doz, Andrew ; Duche, Jacob, 

 1734; Boyer, James, 1734; Bonnett, John, 1736; Gar- 

 rigues, Peter, 1736 ; Doutell, Michael, 1737 ; Hodnett, 

 John, 1737,; Boudinot, Elias, 1738; Bruud, John, 1738; 

 Purdieu, Guilliam, 1738 ; La Eue, John, 1739 ; Le 

 Shemile, Peter, 1741 ; Le Gay, Jacob, 1744 ; Votaw, Paul 

 Isaac, 1747 ; Dui^eeu, Daniel, 1747 ; de Prefontain, Peter, 

 1754 ; Vidal, Stephen, 1754 ; Couche, Daniel, 1756 ; 

 Paca, John, 1758 ; Le Dieu, Lewis, 1758 ; Lacallas, 



