MR
Mary Richards — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Jefferson, Alabama
Our Model Tree links this Mary Richards across the 1930 and 1940 US Censuses in Jefferson, Alabama (XGBoost, ~Confirmed) — first a daughter (b.~1921), then head of a 10-person household.
Age 9
b. ~1921
Female
Daughter
Born: Alabama
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Jefferson, Alabama |
| Surname | Richards |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Georgia |
| Mother's Birthplace | Alabama |
| Additional Details | |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Township / Ward | Irondale Town |
| Est. Birth Year | ~1921 |
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 |
|---|---|---|---|---|
| Theresa Richards | Daughter | — | 14 | ~1916 |
| Lula Richards | Daughter | — | 12 | ~1918 |
| Mary Richards | Daughter | — | 9 | ~1921 |
| Mildred Richards | Daughter | — | 5 | ~1925 |
| Joseph Richards | Head | — | 47 | ~1883 |
| John Richards | Son | — | 18 | ~1912 |
| Daniel Richards | Son | — | 7 | ~1923 |
| Horace Richards | Son | — | 14 | ~1916 |
| Roy Richards | Son | — | 21 | ~1909 |
| Pearl Richards | Spouse | — | 41 | ~1889 |
Census Appearances
1930
Jefferson, Alabama
Daughter, age 9
Jefferson, Alabama · implied b. ~1921 — 10 household members
| Surname | Richards |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Georgia |
| Mother's Birthplace | Alabama |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1940
Jefferson-County, Alabama
Spouse, age 20
Jefferson-County, Alabama · implied b. ~1920 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Richardson |
| Given Name | Marie E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 20 |
| Marital Status | Married |
| Birthplace | Alabama |
| 1935 Residence (City) | Birmingham city |
| 1935 Residence (County) | Jefferson |
| Industry | 0 |
| Class of Worker | 0 |
| Income (1939) | 0 |
| Highest Grade | H 2 |
| 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 Richards across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Richards
Daughter · 1930 · age 9 · b. ~1921 · Alabama
★ You are viewing this record
Sibling
Lula Richards
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Richards
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Horace Richards
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Daniel Richards
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Theresa Richards
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mildred Richards
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Roy Richards
Sibling · 1930 · age 21
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:1930:15thcensus31usce:0791)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Herman Thompson | 22 | Head | Truck Driver | Alabama |
| 52 | Ethel Thompson | 20 | Wife | Laundress | Alabama |
| 53 | Herman Jr Thompson | 1 | Son | — | Alabama |
| 54 | Henry Woods | 49 | Head | Laborer | Alabama |
| 55 | Annie Woods | 48 | Wife | — | Alabama |
| 56 | Henry Jr Woods | 19 | Son | Laborer | Alabama |
| 57 | James Woods | 17 | Son | — | Alabama |
| 58 | John Woods | 12 | Son | — | Alabama |
| 59 | George Woods | 10 | Son | — | Alabama |
| 60 | Robert Woods | 8 | Son | — | Alabama |
| 61 | Willie Woods | 6 | Son | — | Alabama |
| 62 | Annie Woods | 4 | Daughter | — | Alabama |
| 63 | Mary Woods | 2 | Daughter | — | Alabama |
| 64 | Lula Woods | 1 | Daughter | — | Alabama |
| 65 | John Martin | 47 | Head | Molder | Alabama |
| 66 | Mary Martin | 48 | Wife | — | South Carolina |
| 67 | John Jr Martin | 20 | Son | Laborer | Mississippi |
| 68 | Lillie M Martin | 17 | Daughter | — | Alabama |
| 69 | Lucille Martin | 15 | Daughter | — | Alabama |
| 70 | Doris Martin | 13 | Daughter | — | Alabama |
| 71 | Clarence Davis | 23 | Head | Servant | Alabama |
| 72 | John Leman | 40 | Head | Truck Driver | Georgia |
| 73 | Annie Leman | 35 | Wife | Laundress | Alabama |
| 74 | Henry Woods | 39 | Head | Truck Driver | Alabama |
| 75 | Annie Woods | 33 | Wife | Laundress | Alabama |
| 76 | Howard Richards | 20 | Head | Machinist | Alabama |
| 77 | Ida Richards | 19 | Wife | — | Georgia |
| 78 | Howard Jr Richards | 1 | Son | — | Florida |
| 79 | John Mcneil | 21 | Head | Laborer | Alabama |
| 80 | Mary Mcneil | 18 | Wife | — | Alabama |
| 81 | Chester Mcneil | 1 | Son | — | Alabama |
| 82 | Lena Mcneil | 20 | Daughter | — | Alabama |
| 83 | John T Mcneil | 18 | Son | — | Alabama |
| 84 | Robert Mcneil | 16 | Son | — | Alabama |
| 85 | Roberta Mcneil | 14 | Daughter | — | Alabama |
| 86 | Joseph Richards | 47 | Head | Manager | Georgia |
| 87 | Pearl Richards | 41 | Wife | — | Alabama |
| 88 | Roy Richards | 21 | Son | Salesman | Alabama |
| 89 | John Richards | 18 | Son | Salesman | Alabama |
| 90 | Theresa Richards | 14 | Daughter | — | Alabama |
| 91 | Horace Richards | 14 | Son | — | Alabama |
| 92 | Lula Richards | 12 | Daughter | — | Alabama |
| 93 | Mary E Richards THIS PERSON | 9 | Daughter | — | Alabama |
| 94 | Daniel Richards | 7 | Son | — | Alabama |
| 95 | Mildred Richards | 5 | Daughter | — | Alabama |
| 96 | John W Bagley | 51 | Head | Machinist | Alabama |
| 97 | Emma Bagley | 45 | Wife | — | Alabama |
| 98 | Annie V Bagley | 16 | Daughter | — | Alabama |
| 99 | Irene V Bagley | 13 | Daughter | — | Alabama |
| 100 | John Jr Bagley | 11 | Son | — | 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)