When she was about 22, she married Robert Wilson on April 1, 1740, in Charles County, Maryland. Their children and life together are described in detail in the section on Robert and Mary Wilson.
In 1743, she was mentioned in her father's will as Mary Wilson and received a part of his personal property.
Mary died June 27, 1790 in Montgomery County, Maryland.
Bowles Plantation (Bowls, Bowlesley) was a plantation on the Potomac River near Pickawaxon Creek in Charles County, Maryland. Sarah Bonner inherited it from William Bowles who had inherited it from his father Edward Bowles. Sarah left it to her son, Joseph Douglas.