LS
Lucy Smith — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Ottawa-County, Oklahoma
Our Model Tree links this Lucy Smith across the 1920, 1930 and 1940 US Censuses in Ottawa-County, Oklahoma (XGBoost, ~Confirmed) — first a head (b.~1881), then head of a 2-person household.
Age 59
b. ~1881
Female
Head
Born: Oklahoma
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Ottawa-County, Oklahoma |
| Surname | Smith |
| Given Name | Lucy |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 59 |
| Marital Status | Widowed |
| Birthplace | Oklahoma |
| 1935 Residence (City) | Sand Springs |
| 1935 Residence (County) | Tulsa |
| Additional Details | |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Oklahoma |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
| Township / Ward | Council House |
| Est. Birth Year | ~1881 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Lucy | Age | Birth yr |
|---|---|---|---|---|
| Christine Cummings | Daughter | — | 37 | ~1903 |
| Lucy Smith | Head | — | 59 | ~1881 |
Census Appearances
1920
Ottawa, Oklahoma
Head, age 39
Ottawa, Oklahoma · implied b. ~1881 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Lucy |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Widowed |
| Birthplace | Oklahoma |
| Father's Birthplace | Oklahoma |
| Mother's Birthplace | Oklahoma |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
1930
Ottawa, Oklahoma
Head, age 50
Ottawa, Oklahoma · implied b. ~1880 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Lucy |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Widowed |
| Birthplace | Oklahoma |
| Age at First Marriage | 20 |
| Father's Birthplace | Oklahoma |
| Mother's Birthplace | Oklahoma |
| Occupation | Farmer |
| Industry | General |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
1940
Ottawa-County, Oklahoma
Head, age 59
Ottawa-County, Oklahoma · implied b. ~1881 — 2 household members
| Surname | Smith |
| Given Name | Lucy |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 59 |
| Marital Status | Widowed |
| Birthplace | Oklahoma |
| 1935 Residence (City) | Sand Springs |
| 1935 Residence (County) | Tulsa |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Oklahoma |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
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 Lucy Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Lucy Smith
Head · 1940 · age 59 · b. ~1881 · Oklahoma
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Ottawa-County, Oklahoma
Open full size
1940 US Federal Census — Ottawa-County, Oklahoma
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03321-00171)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Myrtle Faye Brokaw | 12 | Daughter | — | Oklahoma |
| 2 | Lucy Smith THIS PERSON | 59 | Head | — | Oklahoma |
| 3 | Christine Cummings | 37 | Daughter | — | Oklahoma |
| 4 | Maxine (Or) | 16 | Granddaughter | — | Oklahoma |
| 5 | Donald (Or) | 12 | Grandson | — | Oklahoma |
| 6 | Leroy | 5 | Grandson | — | Oklahoma |
| 7 | James Mingo | 35 | Head | Farmer | Oklahoma |
| 8 | Tony | 33 | Brother | — | Oklahoma |
| 9 | Victor | 27 | Brother | Lineman Helper | Oklahoma |
| 10 | Fred | 19 | Brother | Soil Conservation | Oklahoma |
| 11 | Clifford Young | 43 | Head | Truck Driver | Oklahoma |
| 12 | Ora | 37 | Wife | — | Oklahoma |
| 13 | James John D. | 13 | Son | — | Oklahoma |
| 14 | Henry Heard | 28 | Head | General Laborer | Missouri |
| 15 | Rhoda | 45 | Mother | — | Arkansas |
| 16 | Elmer Cunningham | 36 | Head | General Laborer | Oklahoma |
| 17 | Della | 53 | Wife | — | Missouri |
| 18 | Valerius Nora | 58 | Mother | — | Missouri |
| 19 | Claude Mathis | 41 | Head | Shoveler | Oklahoma |
| 20 | Nellie | 34 | Wife | — | Missouri |
| 21 | Earl | 17 | Son | — | Oklahoma |
| 22 | Claude Jr. | 14 | Son | — | Oklahoma |
| 23 | Vesta | 11 | Daughter | — | Oklahoma |
| 24 | Genevieve | 9 | Daughter | — | Oklahoma |
| 25 | Sue Carol | 6 | Daughter | — | Oklahoma |
| 26 | Willard | 4 | Son | — | Oklahoma |
| 27 | Othelia | 2 | Daughter | — | Oklahoma |
| 28 | Charlie Evers | 38 | Head | Mule Skinner | Oklahoma |
| 29 | Rhoda | 37 | Wife | — | Missouri |
| 30 | Lester Hill | 14 | Son | — | Oklahoma |
| 31 | Betty Jane | 12 | Daughter | — | Oklahoma |
| 32 | Eugene Evers | 7 | Son | — | Oklahoma |
| 33 | Jackie | 5 | Son | — | Colorado |
| 34 | Elbert Cunningham | 26 | Head | — | Oklahoma |
| 35 | Albert | 29 | Brother | — | Oklahoma |
| 36 | Elie Davis | 71 | Head | — | Illinois |
| 37 | Martha Ann | 68 | Wife | — | Illinois |
| 38 | Russell Cunningham | 24 | Head | Truck Driver | Oklahoma |
| 39 | Ida Bell | 18 | Wife | — | Oklahoma |
| 40 | Charles R. | 3 | Son | — | Oklahoma |
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)