MW
Mattie Walker — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Lake-County, Indiana
Our Model Tree links this Mattie Walker across the 1930 and 1940 US Censuses in Lake-County, Indiana (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 7-person household.
Age 14
b. ~1926
Female
Daughter
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lake-County, Indiana |
| Surname | Walker |
| Given Name | Mattie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Gary |
| 1935 Residence (County) | Lake |
| Additional Details | |
| Highest Grade | Hs 7 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Gary |
| 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 1940 census.
| Name | Relation to head | Relative to Mattie | Age | Birth yr |
|---|---|---|---|---|
| Mattie Walker | Daughter | — | 14 | ~1926 |
| Alphonso Walker | Son | — | 3 | ~1937 |
| Mattie Walker | Spouse | — | 39 | ~1901 |
| Dave Walker | Son | — | 11 | ~1929 |
| Dave Walker | Head | — | 39 | ~1901 |
| Mamie Walker | Daughter | — | 8 | ~1932 |
| Myrtle Walker | Daughter | — | 6 | ~1934 |
Census Appearances
1930
Lake, Indiana
Daughter, age 4
Lake, Indiana · implied b. ~1926 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Walker |
| Given Name | Mattie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Arkansas |
| Mother's Birthplace | Mississippi |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Lake-County, Indiana
Daughter, age 14
Lake-County, Indiana · implied b. ~1926 — 7 household members
| Surname | Walker |
| Given Name | Mattie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Gary |
| 1935 Residence (County) | Lake |
| Highest Grade | Hs 7 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 Mattie Walker across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mattie Walker
Daughter · 1940 · age 14 · b. ~1926 · Indiana
★ You are viewing this record
Sibling
Myrtle Walker
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alphonso Walker
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mamie Walker
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dave Walker
Sibling · 1940 · age 11
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
1940 US Federal Census — Lake-County, Indiana
Open full size
1940 US Federal Census — Lake-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01121-00473)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Edward Dunlap | 12 | Son | — | Indiana |
| 42 | Jackie Dunlap | 4 | Son | — | Indiana |
| 43 | Volney Mccarthy | 26 | Son-in-law | Farmer | Arkansas |
| 44 | Wanda Mccarthy | 20 | Sister-in-law | — | Arkansas |
| 45 | Gus Thurman | 39 | Head | Moulder | Missouri |
| 46 | Inez Thurman | 34 | Wife | — | Kentucky |
| 47 | Thomas Thurman | 18 | Son | — | Indiana |
| 48 | Elizabeth Thurman | 17 | Daughter | — | Indiana |
| 49 | Julia Thurman | 15 | Daughter | — | Illinois |
| 50 | Lawrence Thurman | 12 | Son | — | Indiana |
| 51 | Augustus Thurman | 8 | Son | — | Indiana |
| 52 | James Thurman | 5 | Son | — | Indiana |
| 53 | Josephine Thurman | 7 | Daughter | — | Indiana |
| 54 | Mary Thurman | 3 | Daughter | — | Indiana |
| 55 | Kenneth Thurman | 1 | Son | — | Indiana |
| 56 | David Runyon | 50 | Head | Painter | Oklahoma |
| 57 | Ione Runyon | 50 | Wife | — | Kansas |
| 58 | Anita Taylor | 20 | Daughter | Office Girl | Indiana |
| 59 | Rosie Royston | 18 | Daughter | — | Indiana |
| 60 | Bettie Taylor | 2 | Granddaughter | — | Indiana |
| 61 | Lillie Hatton | 33 | Head | — | Mississippi |
| 62 | Robert Hatton | 16 | Son | — | Indiana |
| 63 | Clara Curtis | 18 | Ward | — | Indiana |
| 64 | Eleanor Evans | 17 | Ward | — | Indiana |
| 65 | Frances Evans | 12 | Ward | — | Indiana |
| 66 | Edmund Evans | 10 | Ward | — | Indiana |
| 67 | Thelma Evans | 19 | Ward | — | Indiana |
| 68 | Barbara Evans | 6 | Ward | — | Indiana |
| 69 | Jean Evans | 2 | Ward | — | Indiana |
| 70 | James Reese | 25 | Head | Janitor | Mississippi |
| 71 | Lillian Reese | 23 | Wife | — | Alabama |
| 72 | Richard Lawrence | 46 | Head | Laborer | S. Carolina |
| 73 | Berrie Lawrence | 39 | Wife | — | Mississippi |
| 74 | Dave Walker | 39 | Head | Chipper | Arkansas |
| 75 | Mattie Walker | 39 | Wife | — | Mississippi |
| 76 | Mattie Walker THIS PERSON | 14 | Daughter | — | Indiana |
| 77 | Dave Walker | 11 | Son | — | Indiana |
| 78 | Mamie Walker | 8 | Daughter | — | Indiana |
| 79 | Myrtle Walker | 6 | Daughter | — | Indiana |
| 80 | Alphonso Walker | 3 | Son | — | Indiana |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)