MC
Mary Cobb — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Madison, Alabama
Our Model Tree links this Mary Cobb across the 1930 and 1940 US Censuses in Madison, Alabama (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 7-person household.
Age 4
b. ~1926
Female
Daughter
Born: Alabama
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Madison, Alabama |
| Surname | Cobb |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Additional Details | |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Township / Ward | Precinct 12 |
| Est. Birth Year | ~1926 |
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.
7 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Cobb | Daughter | — | 4 | ~1926 |
| Annie Cobb | Spouse | — | 34 | ~1896 |
| Joe Cobb | Son | — | 6 | ~1924 |
| Arthur Cobb | Head | — | 47 | ~1883 |
| Annie Cobb | Daughter | — | 8 | ~1922 |
| James Cobb | Son | — | 2 | ~1928 |
| Arthur Cobb | Son | — | 13 | ~1917 |
Census Appearances
1930
Madison, Alabama
Daughter, age 4
Madison, Alabama · implied b. ~1926 — 7 household members
| Surname | Cobb |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1940
Madison-County, Alabama
Daughter, age 14
Madison-County, Alabama · implied b. ~1926 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cobb |
| Given Name | Myrtle |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Madison |
| Industry | S |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Alabama |
| 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 Cobb across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Cobb
Daughter · 1930 · age 4 · b. ~1926 · Alabama
★ You are viewing this record
Sibling
Arthur Cobb
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Cobb
Sibling · 1930 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Annie Cobb
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joe Cobb
Sibling · 1930 · age 6
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 — Madison, Alabama
Open full size
1930 US Federal Census — Madison, Alabama
Page Contents
50 people indexed on this census page (ia:1930:15thcensus37usce:0372)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Thomas Stephens | 60 | Head | Stock Dealer | Alabama |
| 52 | Lula Stephens | 52 | Wife | — | Tennessee |
| 53 | Lula Stephens | 22 | Daughter | — | Alabama |
| 54 | Lucile Stephens | 19 | Daughter | — | Alabama |
| 55 | Marion Hudson | 38 | Head | Minister | Alabama |
| 56 | Sophie Hudson | 30 | Wife | — | Alabama |
| 57 | Marion Hudson | 8 | Son | — | Alabama |
| 58 | Ruth Hudson | 6 | Daughter | — | Alabama |
| 59 | Grace Hudson | 4 | Daughter | — | Alabama |
| 60 | Mary Hudson | 2 | Daughter | — | Alabama |
| 61 | St. Clair Garner | 41 | Head | Teacher | Georgia |
| 62 | Alma Garner | 44 | Wife | Teacher | Georgia |
| 63 | Roy Garner | 17 | Son | — | Georgia |
| 64 | Dorothy Garner | 15 | Daughter | — | Georgia |
| 65 | Virginia Garner | 11 | Daughter | — | Georgia |
| 66 | Lucile Garner | 9 | Daughter | — | Georgia |
| 67 | Martha Garner | 7 | Daughter | — | Georgia |
| 68 | St. Clair Jr. Garner | 4 | Son | — | Georgia |
| 69 | Thomas Garner | 2 | Son | — | Georgia |
| 70 | Dwight Garner | 0 | Son | — | Georgia |
| 71 | B. Homer | 41 | Head | Stock Dealer | Alabama |
| 72 | Flossie Homer | 35 | Wife | — | Alabama |
| 73 | B. Jr. Homer | 10 | Son | — | Alabama |
| 74 | Joe Homer | 8 | Son | — | Alabama |
| 75 | Jack Homer | 5 | Son | — | Alabama |
| 76 | Billie Homer | 3 | Son | — | Alabama |
| 77 | Nat Gayle | 57 | Head | Farmer | Alabama |
| 78 | Clara Gayle | 45 | Wife | — | Alabama |
| 79 | Bessie Gayle | 25 | Daughter | Retail Clerk | Alabama |
| 80 | John Gayle | 22 | Son | — | Alabama |
| 81 | George Gayle | 18 | Son | — | Alabama |
| 82 | Lula Gayle | 15 | Daughter | — | Alabama |
| 83 | George Gayle | 82 | Father | — | Alabama |
| 84 | Arthur Cobb | 47 | Head | Farmer | Alabama |
| 85 | Annie J. Cobb | 34 | Wife | — | Alabama |
| 86 | Arthur Jr. Cobb | 13 | Son | — | Alabama |
| 87 | Annie Cobb | 8 | Daughter | — | Alabama |
| 88 | Joe Cobb | 6 | Son | — | Alabama |
| 89 | Mary Cobb THIS PERSON | 4 | Daughter | — | Alabama |
| 90 | James Cobb | 2 | Son | — | Alabama |
| 91 | St. Clair Davis | 43 | Head | Retail Merchant | Alabama |
| 92 | Lula Davis | 40 | Wife | — | Alabama |
| 93 | St. Clair Jr. Davis | 17 | Son | — | Alabama |
| 94 | Robert Davis | 14 | Son | — | Alabama |
| 95 | Lula Davis | 11 | Daughter | — | Alabama |
| 96 | Mary Davis | 8 | Daughter | — | Alabama |
| 97 | Joe Davis | 5 | Son | — | Alabama |
| 98 | Thomas Hill | 59 | Head | Farmer | Illinois |
| 99 | Lula Hill | 55 | Wife | — | Alabama |
| 100 | Thomas Jr. Hill | 22 | 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)