Thomas married Margaret Cosin on 2 Jul 1618 in Sempringham, Lincolnshire, England. Margaret (daughter of William Cosin and Agnes Hirst) was born in 1597 in Sempringham, South Kesteven, Lincolnshire, England; was christened on 20 Jun 1598 in Darlton, Bassetlaw, Nottingham, England; died in Jan 1629 in Sempringham, South Kesteven, Lincolnshire, England; was buried on 16 Jan 1650 in Sempringham, South Kesteven, Lincolnshire, England. [Group Sheet] [Family Chart]

1. Elizabeth Buckminster was christened on 17 Aug 1628 in Sempringham, Lincoln, England.
2. James Buckminster was born in 1618 in Sempringham with Pointon and Birthorpe, Lincolnshire, England; died before 1718 in ,,, America.
3. Lawrence Buckminster was born in 1619; was christened on 12 Sep 1619 in Sempringham, Lincoln, England; died on 4 Jul 1646 in Will proved in England; was buried in 1646 in Boston, Suffolk, Massachusetts, United States.
4. Alice Buckminster was born about 1621 in Sempringham,Lincs.,ENG; was christened on 2 Sep 1621 in Sempringham, Lincolnshire, England; died before 1721 in America.
5. Anne Buckminster was born in 1621 in Sempringham with Pointon and Birthorpe, Lincolnshire, England; was christened on 2 Sep 1621 in Sempringham with Pointon and Birthorpe, Lincolnshire, England, United Kingdom.
6. Hannah Buckminster was born in 1622 in Sempringham, Pointon, Lincolnshire, England; was christened in 1622 in Sempringham, Pointon, Lincolnshire, England.
7. Joseph Buckminster was born on 8 Aug 1624 in Sempringham with Pointon and Birthorpe, Lincolnshire, England; was christened on 8 Aug 1624 in Sempringham, Lincoln, England; died on 4 Nov 1624 in Sempringham, Lincoln, England.
8. Margaret Buckminster was born in 1629 in Sempringham with Pointon and Birthorpe, Lincolnshire, England, United Kingdom; was christened on 24 Jan 1629 in Sempringham, Middlesex, England.