EW
Effie Williams — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Marion-County, Indiana
Our Model Tree links this Effie Williams across the 1930 and 1940 US Censuses in Marion-County, Indiana (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 5-person household.
Age 15
b. ~1925
Female
Daughter
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Indiana |
| Surname | Williams |
| Given Name | Effie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | Hs 1 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Indianapolis |
| Est. Birth Year | ~1925 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Effie | Age | Birth yr |
|---|---|---|---|---|
| Carrie Oldham | Spouse | — | 22 | ~1918 |
| Carmen Oldham | Daughter | — | 2 | ~1938 |
| Effie Williams | Daughter | — | 15 | ~1925 |
| Curtis Oldham | Other | — | 26 | ~1914 |
| Ella Eaton | Head | — | 37 | ~1903 |
Census Appearances
1930
Marion, Indiana
Daughter, age 5
Marion, Indiana · implied b. ~1925 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Effie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Kentucky |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Marion-County, Indiana
Daughter, age 15
Marion-County, Indiana · implied b. ~1925 — 5 household members
| Surname | Williams |
| Given Name | Effie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Class of Worker | 0 |
| Highest Grade | Hs 1 |
| 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 Effie Williams across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Effie Williams
Daughter · 1940 · age 15 · b. ~1925 · Indiana
★ You are viewing this record
Sibling
Carmen Oldham
Sibling · 1940 · age 2
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 — Marion-County, Indiana
Open full size
1940 US Federal Census — Marion-County, Indiana
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01131-00944)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ida Davis | 22 | Daughter | Maid | Indiana |
| 2 | George D. Watts | 70 | Head | Laborer | Kentucky |
| 3 | Byrdie Watts | 40 | Wife | — | Tennessee |
| 4 | David J. Cantrell | 24 | Head | Bus Boy | Tennessee |
| 5 | Josephine Cantrell | 24 | Wife | — | Alabama |
| 6 | Donald Cantrell | 5 | Son | — | Indiana |
| 7 | David V. Jr. Cantrell | 1 | Son | — | Indiana |
| 8 | Norman Oldham | 27 | Head | Service Man | Indiana |
| 9 | Mary D. Oldham | 21 | Wife | — | Indiana |
| 10 | Sharon Oldham | 0 | Daughter | — | Indiana |
| 11 | Mack Clay | 56 | Head | Laborer | Kentucky |
| 12 | Robert Ford | 45 | Lodger | Laborer | Illinois |
| 14 | George Wallers | 67 | Head | — | Alabama |
| 15 | Ada Wallers | 62 | Wife | — | Alabama |
| 16 | Shirley Wallers | 2 | Daughter | — | Indiana |
| 17 | Arthur D. Upshaw | 39 | Head | Fireman | Tennessee |
| 18 | Ora L. Upshaw | 34 | Wife | — | Tennessee |
| 19 | Jerome Herrell | 27 | Brother | Service Man | Tennessee |
| 20 | Ella Eaton | 37 | Head | Cook | Alabama |
| 21 | Effie Williams THIS PERSON | 15 | Daughter | — | Indiana |
| 22 | Curtis Oldham | 26 | Brother | Porter | Tennessee |
| 23 | Carrie Oldham | 22 | Wife | — | Indiana |
| 24 | Carmen Oldham | 2 | Daughter | — | Indiana |
| 25 | Cute Thomas | 52 | Head | Laborer | Alabama |
| 26 | Leila Mae Thomas | 52 | Wife | — | Tennessee |
| 27 | Robert Rice | 45 | Head | Laborer | Kentucky |
| 28 | Vitalis Rice | 41 | Wife | — | Indiana |
| 29 | Pauline Rice | 22 | Daughter | Maid | Indiana |
| 30 | Robert Rice | 20 | Son | New Worker | Indiana |
| 31 | Lucille Rice | 18 | Daughter | New Worker | Indiana |
| 32 | August Rice | 16 | Son | New Worker | Indiana |
| 33 | Linnie Rice | 11 | Daughter | — | Indiana |
| 34 | Harold Rice | 9 | Son | — | Indiana |
| 35 | Denver Rice | 7 | Son | — | Indiana |
| 36 | Mildred Rice | 5 | Daughter | — | Indiana |
| 37 | Rosetta Rice | 3 | Daughter | — | Indiana |
| 38 | Don Rice | 2 | Son | — | Indiana |
| 39 | Marva Rice | 0 | Daughter | — | Indiana |
| 40 | Oscar Simmons | 42 | Head | Laborer | Kentucky |
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)