Henry Casimir de Rham

Henry Casimir de Rham (15 July 1785 – October 1873) was a Swiss–American merchant and diplomat.

Henry Casimir de Rham was born on 15 July 1785 in Giez, Switzerland.

[5] After the War of 1812 he entered business relationship with Isaac Iselin Roulet.

[6] In July 1822 de Rham was appointed to be one of the first two Swiss consuls to the United States[3] by the Federal Diet of Switzerland.

[2] Through his son Charles, he was a grandfather of Elise De Rham (1850–1879), who married John Jay Pierrepont; Charles de Rham (1854–1933), who married Emily Hone Foster; Henry Casimir de Rham (1855–1916),[12] who married Anna Tayloe Warren and Georgina Louise Berryman; and William de Rham (1857–1881).