MS
Mary Sims — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Jefferson, Alabama
Our Model Tree links this Mary Sims across the 1930 and 1940 US Censuses in Jefferson, Alabama (XGBoost, ~Confirmed) — first a daughter (b.~1916), then head of a 10-person household.
Age 14
b. ~1916
Female
Daughter
Born: Alabama
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Jefferson, Alabama |
| Surname | Sims |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Township / Ward | Tarrant City |
| Est. Birth Year | ~1916 |
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.
10 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Lillian Sims | Daughter | — | 16 | ~1914 |
| Augustus Sims | Head | — | 47 | ~1883 |
| Brenda Sims | Daughter | — | 20 | ~1910 |
| Alice Sims | Daughter | — | 10 | ~1920 |
| Ruth Sims | Daughter | — | 6 | ~1924 |
| Martha Sims | Daughter | — | 8 | ~1922 |
| James Sims | Son | — | 12 | ~1918 |
| Mary Sims | Daughter | — | 14 | ~1916 |
| Mary Sims | Other | — | 43 | ~1887 |
| Augustus Sims | Son | — | 22 | ~1908 |
Census Appearances
1930
Jefferson, Alabama
Daughter, age 14
Jefferson, Alabama · implied b. ~1916 — 10 household members
| Surname | Sims |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Can Read/Write | Yes |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1940
Jefferson-County, Alabama
Daughter, age 23
Jefferson-County, Alabama · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Simms |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | Birmingham City |
| 1935 Residence (County) | Jefferson |
| Occupation | Maid |
| Industry | Private Home |
| Class of Worker | PW |
| Hours Worked | 30 |
| Income (1939) | 210 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
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 Sims across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Sims
Daughter · 1930 · age 14 · b. ~1916 · Alabama
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Sibling
Ruth Sims
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Sims
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lillian Sims
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Brenda Sims
Sibling · 1930 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Augustus Sims
Sibling · 1930 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Sims
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Martha Sims
Sibling · 1930 · age 8
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 — Jefferson, Alabama
Open full size
1930 US Federal Census — Jefferson, Alabama
Page Contents
50 people indexed on this census page (ia:1930:15thcensus2usce:0401)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Alice Hadden | 53 | Head-H | — | Indiana |
| 2 | Martha Hadden | 25 | Daughter | — | Illinois |
| 3 | William Hadden | 23 | Son | — | Illinois |
| 4 | Alice Hadden | 20 | Daughter | — | Illinois |
| 5 | Gladys Hadden | 19 | Daughter | — | Alabama |
| 6 | Ruth Hadden | 15 | Daughter | — | Alabama |
| 7 | Hannah Hadden | 12 | Daughter | — | Alabama |
| 8 | W. B. Bridges | 32 | Head | Agent | Tennessee |
| 9 | Lillian Bridges | 32 | Wife-H | — | Alabama |
| 10 | Mary Lou Bridges | 11 | Daughter | — | Alabama |
| 11 | W. B. Jr. Bridges | 3 | Son | — | Alabama |
| 12 | W. B. Bridges | 40 | Head | Merchant | Alabama |
| 13 | Lillian Bridges | 33 | Wife-H | — | Pennsylvania |
| 14 | W. B. Jr. Bridges | 13 | Son | — | Alabama |
| 15 | William H. Knight | 57 | Head | Farmer | Alabama |
| 16 | Augusta Knight | 47 | Private School | Music Teacher | Missouri |
| 17 | Jane S. Knight | 3 | Daughter | — | Alabama |
| 18 | James H. Thomas | 76 | Head | Farmer | North Carolina |
| 19 | Adelle Thomas | 55 | Wife-H | — | Alabama |
| 20 | Eula Benton | 34 | Servant | Chauffeur | Alabama |
| 21 | Milton Nelson | 29 | Head | Manager | Alabama |
| 22 | Myrtle Nelson | 25 | Wife-H | — | Alabama |
| 23 | Milton Jr. Nelson | 2 | Daughter | — | Alabama |
| 24 | Arthur Nelson | 22 | Son | Mechanic | Alabama |
| 25 | Frederick Mayer | 57 | Head | — | Illinois |
| 26 | Amelia Mayer | 43 | Wife-H | — | Illinois |
| 27 | Thomas Clarke | 34 | Head | Agent | Illinois |
| 28 | Lillian Clarke | 30 | Wife-H | — | Illinois |
| 29 | Augustus Sims | 47 | Head | Farmer | Alabama |
| 30 | Mary Sims | 43 | Wife-H | — | Alabama |
| 31 | Augustus Jr. Sims | 22 | Son | Laborer | Alabama |
| 32 | Brenda Sims | 20 | Daughter | Laborer | Alabama |
| 33 | Lillian Sims | 16 | Daughter | — | Alabama |
| 34 | Mary Sims THIS PERSON | 14 | Daughter | — | Alabama |
| 35 | James Sims | 12 | Son | — | Alabama |
| 36 | Alice Sims | 10 | Daughter | — | Alabama |
| 37 | Martha Sims | 8 | Daughter | — | Alabama |
| 38 | Ruth Sims | 6 | Daughter | — | Alabama |
| 39 | Robert Kaplan | 62 | Head | Merchant | Alabama |
| 40 | Rose E. Kaplan | 58 | Wife-H | Partner | Tennessee |
| 41 | Miles Edward Kaplan | 52 | Poultry | Dealer | Florida |
| 42 | Catherine Sister Kaplan | 19 | Boarder | Saleswoman | Alabama |
| 43 | John E. Goulden | 48 | Head | Operator | North Carolina |
| 44 | Bessie S. Goulden | 33 | Wife-H | — | North Carolina |
| 45 | Harold H. Goulden | 7 | Son | — | Alabama |
| 46 | George Leonard | 24 | Head | Store Keeper | Alabama |
| 47 | Elizabeth D. Leonard | 18 | Wife-H | — | Alabama |
| 48 | Elizabeth D. Leonard | 0 | Daughter | — | Alabama |
| 49 | Sam Curtis | 34 | Servant | Chauffeur | Alabama |
| 50 | Cora Curtis | 37 | Servant | Cook | Alabama |
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)