Margaret was born before 1809. She is the daughter of Stephen Lloyd and Sarah. She was christened at Saint Andrew, Holborn on 16 Jul 1809.
"England Births and Christenings, 1538-1975," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:NYNW-SFS : 11 February 2018, Margaret Lloyd, 16 Jul 1809); citing , index based upon data collected by the Genealogical Society of Utah, Salt Lake City; FHL microfilm 374,356.
It may be possible to confirm family relationships with Margaret by comparing test results with other carriers of her ancestors' 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 Margaret: