Daughter of John Simpson and Annie Mariah McDade Simpson Pemberton.

Married to Harry Smith DeMoss on January 18, 1921 in Johnson County, Arkansas.

Harry and Mary were the parents of:
Jessie Geneva DeMoss Moring
Infant Son DeMoss
John William DeMoss
Harry Smith DeMoss Jr
Jeannie L DeMoss Bragdon
Delma Lee DeMoss Brewer
Paul Vernon DeMoss
James Edward DeMoss
**********************************
1910 United States Federal Census
Name: Mary Simpson
Age in 1910: 10
Birth Year: abt 1900
Birthplace: Arkansas
Home in 1910: Prairie, Johnson, Arkansas
Street: Rad From Spadra to Montana
Race: White
Gender: Female
Relation to Head of House: Daughter
Marital status: Single
Father's name: John Simpson
Father's Birthplace: Scotland
Mother's name: Annie Simpson
Mother's Birthplace: Arkansas
Native Tongue: English
Attended School: Yes
Able to Read: Yes
Able to Write: Yes
Household Members:
Name Age
John Simpson 39
Annie Simpson 32
Thresa Simpson 15
Johnie Simpson 12
Mary Simpson 10
Willie Simpson 7
Harry Simpson 1

Arkansas, County Marriages Index, 1837-1957
Name: Harry De Moss
Gender: Male
Age: 30
Birth Year: abt 1891
Residence: Clarksville, Johnson, Arkansas
Spouse's name: Mary Simpson
Spouse's Gender: Female
Spouse's Age: 21
Spouse's Residence: Clarksville, Johnson, Arkansas
Marriage Date: 18 Jan 1921
Marriage License Date: 17 Jan 1921
Marriage County: Johnson
Event Type: Marriage
FHL Film Number: 1027109

1930 United States Federal Census
Name: Mary Demoss
Birth Year: abt 1901
Gender: Female
Race: White
Birthplace: Arkansas
Marital status: Married
Relation to Head of House: Wife
Homemaker?: Yes
Home in 1930: Madison, Grant, Arkansas
Dwelling Number: 19
Family Number: 19
Age at first Marriage: 21
Attended School: No
Able to Read and Write: Yes
Father's Birthplace: Scotland
Mother's Birthplace: Arkansas
Able to Speak English: Yes
Household Members:
Name Age
H S Demoss 39
Mary Demoss 29
Geneva Demoss 10
John Demoss 4
H S Demoss 2
J C Pemberton 72
Annie Pemberton 56

1900 United States Federal Census
Name: John Simpson
Age: 30
Birth Date: Aug 1869
Birthplace: Scotland
Home in 1900: Coal Hill, Johnson, Arkansas
Street: Railroad Street
Sheet Number: 8
Number of Dwelling in Order of Visitation: 161
Family Number: 173
Race: White
Gender: Male
Immigration Year: 1890
Relation to Head of House: Head
Marital status: Married
Spouse's name: Anna Simpson
Marriage Year: 1894
Father's Birthplace: Scotland
Mother's Birthplace: Scotland
Years in US: 12
Naturalization: Na
Occupation: Coal Miner
Months Not Employed: 1
Can Read: Yes
Can Write: Yes
Can Speak English: Yes
House Owned or Rented: R
Farm or House: H
Household Members:
Name Age
John Simpson 30
Anna Simpson 24
Sarah Simpson 5
John T Simpson 3