Joseph Jonas born May 5, 1792 Exeter, Devon, England (Source: Jessop, W. S. Coat of Many Colors. 1951 Available: http://www.eclipse.co.uk/exeshul/susser/joseph/jessophistory1.htm
Two different sources differ on marriage date to Rachel Mendes Seixas LDS Church Batch #8931233 Source no. 1553615 says marriage was December 10, 1823, Philadelphia
Jonathon Cardoza in correspondence to me stated it is February 10, 1823 Philadelphia He may have forgotten to type the "1".
Joseph Jonas died May 4, 1869, Springhill, AL (Source: Coat of Many Colors)
Rachel Mendes was born January 11, 1801 and died February 19, 1827. (Source: Stern, Malcolm, H. Americans of Jewish Descent. "Family Tree of Seixas". p. 191.
After her death Joseph married Martha Oppenheim. They had 4 children.
Joseph Jonas was the son of Benjamin Jonas born abt 1765 Teignmouth, Devon, England died May 17, 1846 in Cincinnati. (Source: The Occident and American Jewish Advocate. The Jews in Ohio. Available: http://www.jewish-history.com/Occident/volume1/feb1844/ohio.html
Brnjmin Jonas had another son, Abraham born 1801 Exeter, Devon, England, died June, 1864 in Quicy Adams, IL He was a friend of Abraham Lincoln. He married Lucia Orah Mende Seixas (sister of Rachel) ab5 1824 in Cincinnati. She died June 15, 1825 in Cincinnati. After her death Abraham married Louisa Block daughter of Jacob Block and sister of Eleazer and Abraham Block.