MW
Mary Willis — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Montgomery, Alabama
Our Model Tree links this Mary Willis across the 1920 and 1930 US Censuses in Montgomery, Alabama (XGBoost, ~Confirmed) — first a daughter (b.~1910), then head of a 7-person household.
Age 20
b. ~1910
Female
Daughter
Born: Alabama
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Montgomery, Alabama |
| Surname | Willis |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 20 |
| 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 | Porters Beat |
| Est. Birth Year | ~1910 |
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 |
|---|---|---|---|---|
| Nellie Willis | Daughter | — | 17 | ~1913 |
| Roshell Willis | Daughter | — | 11 | ~1919 |
| Mary Willis | Daughter | — | 20 | ~1910 |
| Josephine Willis | Daughter | — | 6 | ~1924 |
| J Willis | Head | — | 42 | ~1888 |
| James Willis | Son | — | 15 | ~1915 |
| Nellie Willis | Spouse | — | 32 | ~1898 |
Census Appearances
1920
Elmore, Alabama
Daughter, age 10
Elmore, Alabama · implied b. ~1910 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Willis |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | Black |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1930
Montgomery, Alabama
Daughter, age 20
Montgomery, Alabama · implied b. ~1910 — 7 household members
| Surname | Willis |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 20 |
| 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 |
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 Willis across 2 US Census years (1920 and 1930) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Willis
Daughter · 1930 · age 20 · b. ~1910 · Alabama
★ You are viewing this record
Sibling
Roshell Willis
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Josephine Willis
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Willis
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nellie Willis
Sibling · 1930 · age 17
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 — Montgomery, Alabama
Open full size
1930 US Federal Census — Montgomery, Alabama
Page Contents
48 people indexed on this census page (ia:1930:15thcensus44usce:0269)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | J T Willis | 42 | Head | Truck Driver | Alabama |
| 2 | Nellie Willis | 32 | Wife | — | Alabama |
| 3 | Mary Willis THIS PERSON | 20 | Daughter | — | Alabama |
| 4 | Nellie Willis | 17 | Daughter | — | Alabama |
| 5 | James Willis | 15 | Son | Laborer | Alabama |
| 6 | Roshell Willis | 11 | Daughter | — | Alabama |
| 7 | Josephine Willis | 6 | Daughter | — | Alabama |
| 8 | John Green | 56 | Head | Farmer | Alabama |
| 9 | Castella Green | 57 | Wife | — | Alabama |
| 10 | Emma Green | 15 | Daughter | Laborer | Alabama |
| 11 | Bernice Green | 12 | Daughter | Laborer | Alabama |
| 12 | John T Green | 10 | Son | Laborer | Alabama |
| 13 | Isaac Green | 8 | Son | — | Alabama |
| 14 | James Green | 4 | Son | — | Alabama |
| 15 | Sophia Green | 1 | Daughter | — | Alabama |
| 16 | Philip King | 23 | Head | Farmer | Alabama |
| 17 | Annie King | 22 | Wife | — | Alabama |
| 18 | Annie King | 4 | Daughter | — | Alabama |
| 19 | Philip Jr King | 2 | Son | — | Alabama |
| 20 | King | 0 | Son | — | Alabama |
| 22 | Rebecca | 23 | Wife | — | Alabama |
| 23 | Malowa | 5 | Son | — | Alabama |
| 25 | Willie | 2 | Daughter | — | Alabama |
| 26 | Isaac | 1 | Son | — | Alabama |
| 27 | W M King | 64 | Head | Farmer | Alabama |
| 28 | Betsy King | 58 | Wife | — | Alabama |
| 29 | James King | 14 | Son | Laborer | Alabama |
| 30 | Luke King | 12 | Daughter | Laborer | Alabama |
| 31 | Dock Barnett | 55 | Head | Farmer | Alabama |
| 32 | Mary Barnett | 55 | Wife | — | Alabama |
| 33 | Lee Barnett | 22 | Son | Laborer | Alabama |
| 34 | Charlie Willis | 72 | Head | Farmer | Alabama |
| 35 | Mary Willis | 68 | Wife | — | Alabama |
| 36 | Aggie Willis | 19 | Daughter | Laborer | Alabama |
| 37 | Lillie Willis | 18 | Daughter | Laborer | Alabama |
| 38 | Wm Raymould | 52 | Head | Farmer | Alabama |
| 39 | Love Raymould | 35 | Wife | — | Alabama |
| 40 | Ernest Raymould | 20 | Son | Laborer | Alabama |
| 41 | Willie Raymould | 16 | Son | Laborer | Alabama |
| 42 | Beatrice Raymould | 13 | Daughter | Laborer | Alabama |
| 43 | Eveline Raymould | 10 | Daughter | — | Alabama |
| 44 | John Raymould | 7 | Son | — | Alabama |
| 45 | Eva Mae Raymould | 4 | Daughter | — | Alabama |
| 46 | Thomas Raymould | 2 | Son | — | Alabama |
| 47 | Jeff Marks | 52 | Head | Farmer | Alabama |
| 48 | Mattie Marks | 16 | Daughter | Laborer | Alabama |
| 49 | Sarah Marks | 13 | Daughter | Laborer | Alabama |
| 50 | Thomas Marks | 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)