The Rossman family of Claverack, Columbia county, New York, descend from Johannes Roseman, who came from Germany to the town of Livingston, Columbia county, 1709, with the German emigration early in the eighteenth century. He married and had two sons, George and Conrad, and four daughters.
(II) Conrad Rossman, son of Johannes Roseman, married and had children by first wife: Fite, Jacob, Jonas, who had two sons, Peter and Terry or George; daughters, Mrs. Petrie, Mrs. Cone, Mrs. Prinder and Mrs. Brizer; by second marriage he had five sons and one daughter: Conrad, Hendrick, Phillip, Adam, Samuel or Tobias, Hannah.
(III) Fite, son of Conrad Rossman, was born 1743, died 1831. He was a farmer of the town of Claverack, Columbia county, near the village of Martindale. He married Ann Ham, of Pine Plains, New York. Children:
- Peter, of further mention.
- John, died 1829; married Esther Hoffman.
- Frederick, born 1775, died 1850; married Cornelia Van Deusen and had two sons: Stephen, married and had Edward and Augustus; Josephus, married and had three daughters, Gertrude, Caroline and Margaret.
- Jacob, born 1785, died 1854; married, 1812, Nancy M. Latting; had three sons and three daughters: Allen, Richard, Refine, Ann, Phoebe, Harriet. Refine had Richard, Allen, Refine, Mary.
- Margaret.
- Catherine.
(IV) Peter, son of Fite and Ann (Ham) Rossman, married Alida Van Deusen and had children:
- Fite, married and had Mary and Robert.
- Daniel, of further mention.
- Robert, married and had John, Gerald, Harriet, Alida.
- Elizabeth.
(V) Daniel, son of Peter and Alida (Van Deusen) Rossman, was born at Martindale, town of Claverack, Columbia county, New York, December 15, 1800, died there April 9, 1845. He was a farmer and an honored citizen. He was for two years deacon of the Dutch Reformed church, and in politics a Whig. He married, March 28, 1826, Charlotte Bortle, born May 18, 1803, died January 30, 1898. She descended from Michael Norton, a captain in Washington's army in 1776; married Elizabeth Esselelyn. Their daughter, Rachel Horton, married John Bortle. Their daughter, Charlotte Bortle, married Daniel Rossman. Children:
- Frances E., married Dr. Thomas T. Calkins; she is now a resident of New York City.
- Rachel A., married Abram F. Philip, of Philmont.
- Louisa, died in childhood.
- Sarah, born August 6, 1833, died July 31, 1854.
- Katherine M.
- Emily, born November 18, 1837, died October 8, 1858.
- Bethia.
- Louisa, married, October 28, 1888, John A. Nichols, who was born August 28, 1831, and died December 22, 1905.
(VI) Daniel P., son of Daniel and Charlotte (Bortle) Rossman, was born February 5, 1846. He is now a resident of Claverack. He married Laura M. Fielder, born January 28, 1852, died February 26, 1898. Children:
- Frank, born October 27, 1876, died October 9, 1902.
- Florence, March 8, 1879, died January 16, 1907; married, April 19, 1902, Arthur Le Grand Doty.