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Mary Blackwell — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Lawrence, Mississippi
Our Model Tree links this Mary Blackwell across the 1930 and 1940 US Censuses in Lawrence, Mississippi (XGBoost, ~Confirmed) — first a daughter (b.~1922), then head of a 9-person household.
Age 8
b. ~1922
Female
Daughter
Born: Mississippi
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Lawrence, Mississippi |
| Surname | Blackwell |
| Given Name | Mary L. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Mississippi |
| Father's Birthplace | Mississippi |
| Mother's Birthplace | Mississippi |
| Additional Details | |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
| Township / Ward | Beat 1 Pt Of |
| Est. Birth Year | ~1922 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
9 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| J Blackwell | Son | — | 17 | ~1913 |
| Harley Blackwell | Son | — | 10 | ~1920 |
| Mamie Blackwell | Other | — | 43 | ~1887 |
| Louie Blackwell | Son | — | 15 | ~1915 |
| Robert Blackwell | Son | — | 3 | ~1927 |
| A Blackwell | Head | — | 46 | ~1884 |
| Lucille Blackwell | Daughter | — | 13 | ~1917 |
| Mary Blackwell | Daughter | — | 8 | ~1922 |
| Elliott Blackwell | Son | — | 12 | ~1918 |
Census Appearances
1930
Lawrence, Mississippi
Daughter, age 8
Lawrence, Mississippi · implied b. ~1922 — 9 household members
| Surname | Blackwell |
| Given Name | Mary L. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Mississippi |
| Father's Birthplace | Mississippi |
| Mother's Birthplace | Mississippi |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
1940
Lawrence-County, Mississippi
Daughter, age 18
Lawrence-County, Mississippi · implied b. ~1922 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Blackwell |
| Given Name | Marguerite |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Mississippi |
| 1935 Residence (City) | Beat 1 |
| 1935 Residence (County) | Lawrence |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Mary Blackwell across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Blackwell
Daughter · 1930 · age 8 · b. ~1922 · Mississippi
★ You are viewing this record
Sibling
Harley Blackwell
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elliott Blackwell
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Louie Blackwell
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
J Blackwell
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Blackwell
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lucille Blackwell
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Lawrence, Mississippi
Open full size
1930 US Federal Census — Lawrence, Mississippi
Page Contents
50 people indexed on this census page (ia:1930:15thcensus1153unit:1138)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Mary M. | 7 | daughter | — | Mississippi |
| 52 | S. W. Jr. | 5 | son | — | Mississippi |
| 53 | Ab Arnold | 65 | Head | Farmer | Mississippi |
| 54 | Ruby Arnold | 12 | daughter-H | — | Mississippi |
| 55 | Katherine Arnold | 9 | daughter | — | Mississippi |
| 56 | R. H. Dickson | 15 | Head | Laborer | Mississippi |
| 57 | A. S. Blackwell | 46 | Head | Farmer | Mississippi |
| 58 | Mamie Blackwell | 43 | wife-H | — | Mississippi |
| 59 | J. Blackwell | 17 | son | Laborer | Mississippi |
| 60 | Louie Blackwell | 15 | son | Laborer | Mississippi |
| 61 | Lucille Blackwell | 13 | daughter | Laborer | Mississippi |
| 62 | Elliott Blackwell | 12 | son | Laborer | Mississippi |
| 63 | Harley Blackwell | 10 | son | — | Mississippi |
| 64 | Mary L. Blackwell THIS PERSON | 8 | daughter | — | Mississippi |
| 65 | Robert Blackwell | 3 | son | — | Mississippi |
| 66 | Elbert May | 62 | Head | Farmer | Mississippi |
| 67 | Adrene May | 50 | wife-H | — | Louisiana |
| 68 | Edell May | 17 | daughter | Laborer | Mississippi |
| 69 | Pinkey May | 15 | daughter | Laborer | Mississippi |
| 70 | Roan Ready | 36 | Head | Farmer | Mississippi |
| 71 | Ella M. Ready | 29 | wife-H | — | Alabama |
| 72 | Wilma Ready | 9 | daughter | — | Mississippi |
| 73 | Gladys Ready | 5 | daughter | — | Tennessee |
| 74 | Martha Ready | 2 | daughter | — | Mississippi |
| 75 | Zella M. Ready | 1 | daughter | — | Mississippi |
| 76 | Lella G. Ready | 0 | daughter | — | Mississippi |
| 77 | Lella Davis | 23 | niece | Nurse | Louisiana |
| 78 | William Powell | 35 | Head | Laborer | Alabama |
| 79 | Mary Powell | 49 | wife-H | — | France |
| 80 | Jim Sibley | 40 | Head | Farmer | Mississippi |
| 81 | Frankie Sibley | 42 | wife-H | — | Mississippi |
| 82 | Johnie May | 28 | Head | Farmer | Mississippi |
| 83 | Elizabeth May | 25 | wife-H | — | Mississippi |
| 84 | Robert May | 6 | son | — | Mississippi |
| 85 | Flora May | 4 | daughter | — | Mississippi |
| 86 | Eula May | 2 | daughter | — | Mississippi |
| 87 | Ollie May | 1 | son | — | Mississippi |
| 88 | Head Cordie | 29 | — | Farmer | Mississippi |
| 89 | Mary Cordie | 24 | wife-H | — | Mississippi |
| 90 | Vernonia Cordie | 4 | daughter | — | Mississippi |
| 91 | Adah Cordie | 2 | daughter | — | Mississippi |
| 92 | Charlie Cordie | 0 | son | — | Mississippi |
| 93 | Head George | 23 | — | Farmer | Mississippi |
| 94 | Ruby George | 14 | wife-H | — | Alabama |
| 95 | Isam Sanders | 52 | Head | Farmer | Tennessee |
| 96 | Christine Sanders | 22 | wife-H | — | Mississippi |
| 97 | Dewitt Sanders | 20 | son | Laborer | Mississippi |
| 98 | Bishop Sanders | 17 | son | Laborer | Mississippi |
| 99 | Leon Sanders | 10 | son | — | Mississippi |
| 100 | Beulah Sanders | 7 | daughter | — | Mississippi |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)