He married Sarah Martha Ball . Sarah Martha Ball was born at Edinburgh, Midlothian, Scotland Abt 1692 daughter of Joseph Matthaus Ball and Elizabeth Julia Rommey .
They were the parents of 10
children:
Marion Kerr
born Abt 1707.
John Kerr
born Abt 1710.
Elizabeth Kerr
born Abt 1711.
Samuel Kerr
born Abt 1715.
William Kerr
born Abt 1716.
Andrew Kerr
born Abt 1718.
David Kerr
born Abt 1719.
Eleanor Kerr
born Abt 1720.
Letice Kerr
born 7 Jan 1724.
James Kerr
born Abt 1725.