She was born 27 April 1714 in Queen Anne's Parish, Maryland. 
Mary Mullican was born or baptized 27 April 1714 , the daughter of James Mullican and Charity Belt.
Mary Mullikin was born 27 Jan 1713/14 in Queen Anne Parish, Prince George's County, Maryland 
Mary was the daughter of James Mullikin, who was born about 1681, in Calvert County (now Prince George's County), Maryland and who died 25 Apr 1740 in Prince George's County, Maryland - Probate (Age ~ 59 years)
Mary's mother was Charity Belt, born in 1686 in All Hallow's Parish, Anne Arundel County, Maryland, d. Aft 1772, Prince George's County, Maryland - Account (Age > 87 years) Her parents were married in 1708 in Prince George's County, Maryland 
On 21 April 1730 in All Hallows Parish, South River, Anne Arundel County, she married Samuel Norwood .
On 21 April 1730 in Prince George's County, Maryland, Mary married Samuel Norwood, b. 1707, All Hallow's Parish, Anne Arundel County, Maryland 
1737 Will of Elizabeth Lamb
Mary Norwood and her mother Charity Mullakin are named in the will of Charity's mother Elizabeth Lamb of Anne Arundel County. The will was made 1 August 1737 and proved 14 Dec 1737. 
To sons John, Joseph, Benjamin and Jeremiah Belt, 20s. each,
to daus. Charity Mullakin, Sarah Harwood and Margaret Watkins, 20s. each.
to son-in-law Nicholas Watkins, ex... 25.
to granddau. Mary Norwood, personalty.
to grandson Nicholas Watkins and hrs., entire estate; shd. sd. grandson die before he attains age of 20, estate to pass to two granddaus. Elizabeth and Anne Watkins,
Test: Samuel Smith, George Taylor, Edward Scott. 21. 815.
1756 Death of Samuel
Samuel died in 1756 in Anne Arundel County. Her death date has not yet been found.
Genealogies show two children:
James, born 1731
Samuel, born 1736.
Unsourced Children Attached on WikiTree
Mary Mulliken has been shown as the mother of Benjamin Isaac Norred, born 1735. No sourcing has been found to confirm this relationship.Day-1904 22:48, 28 April 2018 (UTC)
Samuel Norwood is said to have been born in 1669,  which would make him aged 61 at the time of his marriage to a 16 year old girl. Such a "May and December" relationship was not unheard of, but needs further research for confirmation!Day-1904 05:30, 11 August 2017 EDT)
It may be possible to confirm family relationships with Mary by comparing test results with other carriers of her mitochondrial DNA.
However, there are no known mtDNA test-takers in her direct maternal line.
It is likely that these autosomal DNA test-takers will share DNA with Mary:
A false link between this Maryland Norwood family and a Virginia-South Carolina Norwood family occurred when a Samuel from that family, born 1714 was attached to Mary Mullikin as his mother, but born the same year. That Samuel has been disconnected.