John Blanchard was born on 3 Jul 1677 in Charlestown, Suffolk Co., Massachusetts. He was baptized on 25 Sep 1681 in 1st Church, Charlestown, Suffolk Co., Massachusetts. He died on 10 Apr 1750 in Billerica, Middlesex Co., Massachusetts. He was a tailor in Billerica, Middlesex Co., Massachusetts. He was married to Mary Crosby on 7 Aug 1701 in Billerica, Middlesex Co., Massachusetts.

Mary Crosby was born on 23 Nov 1680 in Billerica, Middlesex Co., Massachusetts. She died on 7 May 1748 in Billerica, Middlesex Co., Massachusetts. Children were:

i. Mary Blanchard was born on 18 Aug 1702 in Billerica, Middlesex Co., Massachusetts.
ii. Hannah Blanchard was born on 24 Oct 1704 in Billerica, Middlesex Co., Massachusetts. She died on 7 Sep 1763 in Bedford, Middlesex Co., Massachusetts.
iii. Rachel Blanchard was born on 2 Feb 1706/7 in Billerica, Middlesex Co., Massachusetts.
iv. Abigail Blanchard was born on 23 Jan 1708/9 in Billerica, Middlesex Co., Massachusetts.
v. Sarah Blanchard was born on 5 Jun 1711 in Billerica, Middlesex Co., Massachusetts. She died on 8 Jun 1711 in Billerica, Middlesex Co., Massachusetts.
vi. Sarah Blanchard was born on 23 May 1712 in Billerica, Middlesex Co., Massachusetts. She died on 16 Apr 1713 in Billerica, Middlesex Co., Massachusetts.
vii. John Blanchard was born on 15 Mar 1713/14 in Billerica, Middlesex Co., Massachusetts. He died on 18 Mar 1713/14 in Billerica, Middlesex Co., Massachusetts.
viii. John Blanchard Jr. was born on 15 Feb 1714/15 in Billerica, Middlesex Co., Massachusetts. He died on 27 Jul 1756 in Billerica, Middlesex Co., Massachusetts.
ix. Lt. Samuel Blanchard.
x. David Blanchard was born on 20 Mar 1719/20 in Billerica, Middlesex Co., Massachusetts. He died on 21 Jun 1793 in Woburn, Middlesex Co., Massachusetts. He was buried in Precinct Burying Ground cemetery, Burlington, Middlesex Co., Massachusetts.
xi. Benjamin Blanchard was born on 5 Jul 1722 in Billerica, Middlesex Co., Massachusetts.
xii. Simon Blanchard was born on 16 Mar 1725/26 in Billerica, Middlesex Co., Massachusetts. He died on 20 Apr 1796 in Billerica, Middlesex Co., Massachusetts. He was buried in Old South cemetery, Billerica, Middlesex Co., Massachusetts. He was married to Rebecca Sheldon on 17 Dec 1746 in Billerica, Middlesex Co., Massachusetts.