Isaac Mendes Seixas

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Isaac Mendes Seixas

Birthdate: (72)
Birthplace: Lisbon, Lisbon District, Portugal
Death: Died in Newport, Newport, Rhode Island, United States
Immediate Family:

Son of Abraham Mendes Seixas and Abigail Seixas
Husband of Unkn. Mendes Seixas and Rachel Franks Seixas
Father of Abraham Seixas; Abigail Judah; Moses Mendes Mendes; Rev. Gershom Mendes Seixas; Benjamin Mendes Seixas and 3 others
Brother of Judith Mendes and Rebecca (Ribca) Mendes Seixas

Occupation: Founder of the American branch of the Seixas family, who was at various times a merchant in New York, Connecticut, Rhode Island, and New Jersey; endenized NY by 1738
Managed by: Nate Hoffman
Last Updated:

About Isaac Mendes Seixas

Since Isaac is described in his father Abraham's 1738 will as "now a single man" and since Abraham leaves him "only £50 for reasons known to myself," I am led to believe that Isaac may have divorced a first wife against the will of the family. Isaac would not be entitled to any inheritance, except for the £30 year from his brothers-in-law, unless he remarried. -Judith

In 1738 (age 30) (the year of his father's death) Isaac, hoping to profit from Caribbean trade, set sail for the West Indies. According to the Jewish Encyclopedia, Isaac came to the U.S. via Barbados, settling in NY. During the Revolution, the Seixas clan fled from the British in NY (1776) and settled in Stratford, CT. Isaac later moved to Newport, RI.

Caused an uproar in New York's Sephardic elite by marring an Askenazi Jew. See Leo Hershkowitz & Isidore S. Meyer, eds., Letters of the Franks Family (1733-1748): The Lee Max Friedman Collection of American Jewish Colonial Correspondence (Waltham, Mass.: American Jewish Historical Soc.), pp. 75-76.

Issac did not invite any of his relatives to the wedding and his Uncle Rodrigo Pacheco (Benjamin Mendes) was "displeased" according to abigail Levy Franks in a letter to her son Naphtali, half sister to Rachel.

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Isaac Mendes Seixas's Timeline

September 5, 1709
Lisbon, Lisbon District, Portugal
November 1741
Age 32
New York, New York, United States
November 17, 1742
Age 33
New York, United States
March 28, 1744
Age 34
New York, New York, United States
January 14, 1746
Age 36
New York, New York, United States
January 17, 1747
Age 37
Newport, Newport, RI, USA
March 14, 1750
Age 40
New York, NY, USA
November 24, 1752
Age 43
Stratford, CT, USA
Age 46