Joseph Cossart
M, b. 1788
- Joseph Cossart was born in 1788 in Co Antrim, Northern Ireland.
- He was the son of Dr Christian Frederick Cossart and Ann Gordon.
- Joseph went to school in Dublin. In his late teens he was excluded from Gracehill for 'misbehaviour' [perhaps his early marriage to Susan Davidson]. He lived in Galgorm, and despite pleas to be allowed to visit his widowed mother in the old family house was never re-admitted. When his father died all Joseph received from the will was a feather bed and his wearing apparel. He had numerous descendants but there appears to be none of the Cossart name left in Ireland.
Joseph was however, named as Executor of his mother Ann Gordon's will made in 1830. - Joseph Cossart married Susan Davidson circa 1805.
- When Joseph Cossart's son Henry died in Australia in 1878, Joseph's occupation was given as a carpenter.
Children of Joseph Cossart and Susan Davidson
- Susan Cossart b. circa 1806
- Alexander Cossart b. 1813, d. March 1887
- Henry Cossart+ b. 1814, d. 11 January 1878
- Joseph Cossart b. 1817, d. March 1882
Joseph Cossart
M, b. 1772, d. circa 1788
- Joseph Cossart was born in 1772.
- He was the son of Dr Christian Frederick Cossart and Ann Gordon.
- Joseph Cossart died circa 1788 in Ireland. He died at the age of 16 from a "putrid fever" while at school in Dublin.
Joseph Cossart
M, b. 1817, d. March 1882
- Joseph Cossart was born in 1817.
- He was the son of Joseph Cossart and Susan Davidson.
- Between 1848 and 1864 His name appears on a list of Griffiths Valuation of Ireland Index Extracts 1848-1864. He has land at Gloonan, Ahoghill, Co Antrim. He is listed as the Occupier of a house in Gloonan, the Leassor being Rev Robert W Rowan. His brother Alexander held land at Ballykennedy and Gracehill, Ahoghill.
- His death was recorded with the Northern Ireland Registration District in the March 1882 Quarter. The record shows he was 65 years old at the time of his death.
Judith Cossart
F, b. 12 January 1603, d. 18 February 1684
- Charts: Descendants of Thomas Cossart
- Judith Cossart was born on 12 January 1603 in France.
- She was the daughter of Jacques Cossart and Marguerite Toustain.
- At the age of 33 years, 6 months and 4 days, Judith Cossart married Alexis Le Conte on 16 July 1636 in Parish of St. Maclou, Rouen. Alexis was a widower.
- On 4 June 1650,her husband, Alexis Le Conte died.
- Judith Cossart died on 18 February 1684 at age 81.
Children of Judith Cossart and Alexis Le Conte
- Jean Le Conte b. 21 June 1637, d. 5 September 1637
- Judith Le Conte b. 5 September 1637, d. before 1642
- Alexis Le Conte b. 1638, d. 1688
- Judith Le Conte b. 21 April 1642, d. 8 September 1643
- Daniel Le Conte b. 21 January 1645, d. after 1665
Judith Cossart
F, b. 1650
- Charts: Descendants of Thomas Cossart
- Judith Cossart was born in 1650.
- She was the daughter of Bourgeois Jacques Cossart Third and Judith Congnard.
- Judith Cossart married Isaac Le Boulanger circa 1670.
Children of Judith Cossart and Isaac Le Boulanger
- Jacques Le Boulanger b. 1672
- Suzanne Le Boulanger b. 1674
- Pierre Le Boulanger b. 1676
- Judith Le Boulanger b. 1681
- Madeleine Le Boulanger b. 1684
Judith Cossart Fifth
F, b. 1705, d. 1705
- Charts: Descendants of Thomas Cossart
- Judith Cossart Fifth died in 1705 in Holland.
- She was baptized in 1705 in Holland.
- She was the daughter of Jean Cossart Ninth and Judith Faneuil.
Judith Cossart Fourth
F, b. 1658
- Charts: Descendants of Thomas Cossart
- Judith Cossart Fourth was born in 1658 in France.
- She was the daughter of David Cossart and Marguerite Congnard.
- Judith Cossart Fourth immigrated in 1669 with David Cossart and Marguerite Congnard. David and Marguerite fled to Ireland before the Revocation with their family of seven children and established themselves in Dublin. Another three children were born there.
- Judith Cossart Fourth witnessed the baptism of Solomon Cossart on 15 February 1670 in French Church of Dublin; His sponsors were his uncle Isaac Cossart, cousin David Daussy and elder sister Judith Cossart.
Judith Cossart Second
F, b. 25 January 1637, d. 23 March 1641
- Charts: Descendants of Thomas Cossart
- Judith Cossart Second was born on 25 January 1637 in France.
- She was the daughter of Pierre Cossart Third and Marie Baudouyn.
- Judith Cossart Second died on 23 March 1641 in France at age 4.
Judith Cossart Sixth
F, b. 1710
- Charts: Descendants of Thomas Cossart
- Judith Cossart Sixth was baptized in 1710 in Holland.
- She was the daughter of Jean Cossart Ninth and Judith Faneuil.
Laurence Cossart
M, b. 1544, d. before 1611
- Charts: Descendants of Thomas Cossart
- Laurence Cossart was born in 1544 in France.
- He was the son of Sieur de Boscbestre Jehan Cossart and Jacquette Puchot.
- Laurence Cossart married Jehan Le Heurteur circa 1563. They had and one daughter.
- Laurence Cossart died before 1611.
Laurence Cossart
M, b. 1537
- Charts: Descendants of Thomas Cossart
- Laurence Cossart was born in 1537.
- He was the son of Bourgeois Thomas Cossart Second and Anne Baillart.
Bourgeois Laurent Cossart
M, b. 1552
- Charts: Descendants of Thomas Cossart
- Bourgeois Laurent Cossart was born in 1552 in France.
- He was the son of Sieur de Boscbestre Jehan Cossart and Jacquette Puchot.
- At the age of 37 years, Bourgeois Laurent Cossart married Judith Conteux on 5 August 1589.
Children of Bourgeois Laurent Cossart and Judith Conteux
- Marie Cossart b. 1587
- Madeline Cossart b. 1588
- Jehan Cossart b. 1589
- Michelle Cossart b. 1590
Leland Cossart
M, b. 1843, d. 1898
- Charts: Descendants of Thomas Cossart
- Leland Cossart was born in 1843 in Portugal.
- He was the son of Peter Cossart Second and Jane Edwards.
- In 1870, after their father's Peter Cossart's death, Charles and Leland took over the firm of Cossart, Gordon & Co. When Leland died in 1898, Charles became the senior partner.
- Like his brother Charles Leland had a keen interest in plants. He owned a home high up on a hilliside "This Quinta was constructed in the beginning of the 14th century, when a Dr, Gordon, born in London, came to live to Madeira and decided to build a home in Monte. In 1871 Gordon sold his Quinta to Leland Cossart. On July 24th, 1899, Luis Rocha Machado bought the Quinta" "One morning I was walking on the terrace in front of Mr. Leland Cossart's house in Madeira, at an elevation of close upon 2000 feet above the sea" a position perfect for growing ferns and camelias - In Mr Leland Cossart's beautiful and extensive grounds many rare and curious plants and trees from all parts of the world are to be seen (introduced by Mrs Webster Gordon). "This quinta is celebrated for its beautiful camellias, and Mrs Leland Cossart has some fine Australian treeferns growing in the open air."
- Leland Cossart died in 1898.
Leslie Dunlop Cossart 
M, b. 18 November 1906, d. 1971
- Leslie Dunlop Cossart was born on 18 November 1906 in Queensland.
- He was the son of Sidney Joseph Cossart and Ivy Agnes Louisa Smith.
- At the age of 23 years, Leslie Dunlop Cossart married Isabelle Catherine Platt, daughter of Horace H Platt and Ruby Olive Hutton, in 1930 in New South Wales.
- Leslie Dunlop Cossart began military service. WW2.
- On 8 April 1954 Leslie Dunlop Cossart and Isabelle Catherine Platt lived in Vaucluse, New South Wales.
- Leslie Dunlop Cossart died in 1971 in Newtown, New South Wales.
Leslie Roy Cossart
M, b. 6 August 1902, d. 1973
- Leslie Roy Cossart was also known as Roy.
- He was born on 6 August 1902 in Queensland.
- He was the son of Albert Leslie Cossart and Mary Anne Batch.
- He was an accountant, Queensland National Bank.
- Leslie Roy Cossart died in 1973 in Queensland.
Louise Cossart
F, b. 1552
- Charts: Descendants of Thomas Cossart
- Louise Cossart was born in 1552.
- She was the daughter of Bourgeois Thomas Cossart Second and Marie du Champ.
Luc Cossart
M, b. 1648
- Luc Cossart was born in 1648 in France.
- He was the son of Estienne Cossart Third and Esther du Mesnil.
- At the age of 26 years, Luc Cossart married Jeanne Montier, daughter of Jean Montier and Jeanne Le Sueur, on 17 June 1674.
- "In 1684 Luc Cossart fled Holland, and some of his offspring are included in the list of Huguenots, refugees residing at Frankfurt, Germany, where a large family was raised."
Children of Luc Cossart and Jeanne Montier
- Pierre Cossart b. circa 1675
- Jean Luc Cossart+ b. circa 1677
- Jeanne Cossart b. circa 1679
- Jean Cossart b. circa 1680
Lucy Cossart
F, b. 1810
- Charts: Descendants of Thomas Cossart
- Lucy Cossart was born in 1810 in Ireland.
- She was the daughter of John Cossart Fourth and Elizabeth Crosthwait.
Lucy Eva Cossart 
F, b. 6 November 1881, d. 23 May 1945
- Lucy Eva Cossart was born on 6 November 1881 in Queensland, Australia.
- She was the daughter of James Cossart and Rhoda Bidgood.
- Lucy Eva Cossart attended school in Boonah State School.
- She attended school in Ipswich Girls Grammar.
- At the age of 25 years, 7 months and 27 days, Lucy Eva Cossart married Emmanuel Raymond, son of Robert Raymond and Rosanna Williams, on 3 July 1907 in Queensland. A Wedding Notice appeared in the "Brisbane Courier" on Saturday, 6 July 1907 regarding the wedding. It read:-
RAYMOND-COSSART-On Wednesday July 3 at the Methodist Church Boonah by the Rev Jas. H Heston, Emanuel Raymond second son of the late Robt. Raymond Ipswich to Lucy Eva the eldest daughter of Mr and Mrs James Cossart "Bona Vista" Dugandan. - Lucy Eva Cossart died on 23 May 1945 in Queensland at age 63.
Children of Lucy Eva Cossart and Emmanuel Raymond
- James Arthur Raymond+ b. 11 March 1909
- Marjorie Rhoda Raymond+ b. 20 March 1911
- Ralph Cossart Raymond+ b. 28 November 1912, d. 11 October 1982
- Ivan Robert Raymond+ b. 1 April 1914
Ludwig or Louis Cossart
M, b. 13 March 1741, d. 7 January 1807
- Ludwig or Louis Cossart was born on 13 March 1741 in Vaud, Switzerland.
- He was the son of Heinrich Frederic Cossart and Amalia Faillard.
- Ludwig or Louis Cossart died on 7 January 1807 in Eustonia, Russia, at age 65.
Lydia Beatrice Cossart
F, b. 19 April 1875, d. 18 October 1876
- Lydia Beatrice Cossart was born on 19 April 1875 in Perseverance, Queensland, Australia.
- She was the daughter of Joseph Cossart and Sarah Ann (Annie) Bidgood.
- Lydia Beatrice Cossart died on 18 October 1876 in Perseverance, Queensland, at age 1.
- Lydia was buried on 20 October 1876 in Toowong Cemetery.
Madeline Cossart
F, b. 1572
- Charts: Descendants of Thomas Cossart
- Madeline Cossart was born in 1572.
- She was the daughter of Thomas Cossart the Third, Sueur de Franqueville and Jeanne de Bauquemare.
Madeline Cossart
F, b. 1588
- Charts: Descendants of Thomas Cossart
- Madeline Cossart was baptized in 1588.
- She was the daughter of Bourgeois Laurent Cossart and Judith Conteux.
Margaret Cossart
F, b. 1910
- Charts: Descendants of Thomas Cossart
- Margaret Cossart was born in 1910.
- She was the daughter of Charles Blandy Cossart and Maria Anne di Bianchi.
Margaret Cossart
F, b. 1722
- Charts: Descendants of Thomas Cossart
- Margaret Cossart was born in 1722 in County Cork, Ireland.
- She was the daughter of Pierre Cossart Tenth and Elizabeth Perdriau.
- Margaret Cossart married George Carleton circa 1745 in Ireland. George was "of Dublin", the fifth son of John Carleton the High Sheriff of Tipperary in 1717.
- In 1784Margaret Cossart was named as a beneficiary of Pierre Cossart Thirteenth's will. It provided that his wife Elizabeth (nee Roberts) "should have the use of all his plate for life" and that "in case my children die before my wife, I leave her one-third of all my substance, on-third to my brother Isaac of London, and the other third between my three sisters, Margaret Carelton, Elizabeth Baker and Suzanne Lapp."
Children of Margaret Cossart and George Carleton
- Susan Carleton b. circa 1747
- John Carleton b. circa 1750
- Peter Carleton b. circa 1755
- George Frederick Carleton b. circa 1770
Margaret Cossart Second
F, b. 1809
- Charts: Descendants of Thomas Cossart
- Margaret Cossart Second was born in 1809 in Ireland.
- She was the daughter of John Cossart Fourth and Elizabeth Crosthwait.
- At the time of the 30 March 1851 census Margaret Cossart Second was living in the household of William Cossart Second in Middlesex. He was shown as the head of the family born Dublin in 1811. Living with him were his sisters Mary, born Dublin 1809, and Margaret born Dublin 1810, as well as his daughter Elizabeth Jane, born 1844 in Marlebone.
Marguerite Cossart Fifth
F, b. 6 July 1697
- Charts: Descendants of Thomas Cossart
- Marguerite Cossart Fifth was baptized on 6 July 1697 in Holland.
- She was the daughter of Isaac Cossart Second and Suzanne Cornelie de la Fontaine.
Marguerite Cossart Fourth
F, b. 1636
- Charts: Descendants of Thomas Cossart
- Marguerite Cossart Fourth was born in 1636.
- She was the daughter of Pierre Jean Cossart and Elizabeth Reine Carey.
Marie Cossart
F, b. 1535
- Charts: Descendants of Thomas Cossart
- Marie Cossart was born in 1535.
- She was the daughter of Bourgeois Thomas Cossart Second and Anne Baillart.
Marie Cossart
F, b. 1587
- Charts: Descendants of Thomas Cossart
- Marie Cossart was born in 1587.
- She was the daughter of Bourgeois Laurent Cossart and Judith Conteux.