He married Mary Calvert Abt 1736 at of Ulster, Kildare, Ireland . Mary Calvert was born at Carrickfergus, Carrickfergus, County Antrim, Ireland 1678 .
They were the parents of 18
children:
Thomas Whiteside
born 1685.
William Whiteside, I
born 1700.
William Franklin Whiteside
born 1710.
William Whiteside
born 1710.
Thomas Jr Whiteside
born Abt 1710.
Sarah Whiteside
born 1723.
Moses Whiteside
born 1725.
William White
born Abt 1726.
Thomas Whiteside
born 1727.
Robert Whiteside
born 1728.
Ann Whiteside
born 1729.
Abraham Whiteside
born Abt 1730.
Lettice Whiteside
born 1737.
Letilia Whiteside
born 1737.
William Moses Whiteside
born Abt 1758.
John W Whitesides
born Abt 1762.
Thomas Whiteside
born Abt 1835.
Alfred W Whiteside
born 1840.
Thomas Whiteside died 1764 at Augusta, Virginia .
Mary Calvert died at VA .