LJ
Lucille Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · St.-Louis-County, Missouri
Our Model Tree links this Lucille Johnson across the 1930 and 1940 US Censuses in St.-Louis-County, Missouri (XGBoost, ~Confirmed) — first a daughter (b.~1927), then head of a 10-person household.
Age 13
b. ~1927
Female
Daughter
Born: Missouri
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Louis-County, Missouri |
| Surname | Johnson |
| Given Name | Lucille |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Meramec Township |
| 1935 Residence (County) | St. Louis |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Township / Ward | Meramec Township |
| Est. Birth Year | ~1927 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Lucille | Age | Birth yr |
|---|---|---|---|---|
| Marie Johnson | Daughter | — | 18 | ~1922 |
| Lucille Johnson | Daughter | — | 13 | ~1927 |
| Sylvester Johnson | Head | — | 70 | ~1870 |
| Henry Johnson | Other | — | 13 | ~1927 |
| Joe Johnson | Son | — | 17 | ~1923 |
| Milton Johnson | Son | — | 21 | ~1919 |
| Birdie Johnson | Son | — | 19 | ~1921 |
| Henry Johnson | Son | — | 33 | ~1907 |
| Rolla Johnson | Son | — | 32 | ~1908 |
| Ophelia Johnson | Spouse | — | 61 | ~1879 |
Census Appearances
1930
St Louis, …
Daughter, age 4
St Louis, Missouri · implied b. ~1926 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Lucille |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
St.-Louis-County, Missouri
Daughter, age 13
St.-Louis-County, Missouri · implied b. ~1927 — 10 household members
| Surname | Johnson |
| Given Name | Lucille |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Meramec Township |
| 1935 Residence (County) | St. Louis |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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 Lucille Johnson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Lucille Johnson
Daughter · 1940 · age 13 · b. ~1927 · Missouri
★ You are viewing this record
Sibling
Joe Johnson
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rolla Johnson
Sibling · 1940 · age 32
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Milton Johnson
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Birdie Johnson
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marie Johnson
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Henry Johnson
Sibling · 1940 · age 33
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 — St.-Louis-County, Missouri
Open full size
1940 US Federal Census — St.-Louis-County, Missouri
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02151-00738)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lee Rogers | 2 | Grandson | — | Missouri |
| 42 | A. J. Griffith | 58 | Head | Laborer | Missouri |
| 43 | George Riley | 55 | Head | Farmer | Missouri |
| 44 | Mary A. Riley | 53 | Wife | — | Missouri |
| 45 | Ferdinand Riley | 22 | Son | Laborer | Missouri |
| 46 | Joseph Riley | 22 | Son | Laborer | Missouri |
| 47 | Leonard Riley | 20 | Son | Carpenter Apprentice | Missouri |
| 48 | Mary M. Riley | 17 | Daughter | — | Missouri |
| 49 | Robert Riley | 15 | Son | Farm Laborer | Missouri |
| 50 | Raymond Riley | 13 | Son | — | Missouri |
| 51 | Thomas Riley | 10 | Son | — | Missouri |
| 52 | Melvin Walker | 46 | Head | Caretaker | Illinois |
| 53 | Edna Walker | 36 | Wife | — | Illinois |
| 54 | Doris Walker | 15 | Daughter | — | Illinois |
| 55 | Martha Walker | 14 | Daughter | — | Illinois |
| 56 | Warren Walker | 5 | Son | — | Illinois |
| 57 | Lorran Walker | 0 | Son | — | Missouri |
| 58 | George Hawkins | 70 | Head | — | Missouri |
| 59 | Nellie Hawkins | 50 | Wife | — | Missouri |
| 60 | Viola Hawkins | 25 | Daughter | — | Missouri |
| 61 | Nellie Hawkins | 26 | Daughter | — | Missouri |
| 62 | Phillip Hawkins | 24 | Son | — | Missouri |
| 63 | Victor Hawkins | 22 | Son | Truck Loader | Missouri |
| 64 | Jessie Hawkins | 19 | Daughter | — | Missouri |
| 65 | George Hawkins | 16 | Son | Farm Laborer | Missouri |
| 66 | Ona Hawkins | 13 | Son | — | Missouri |
| 67 | Sylvester S. Johnson | 70 | Head | — | Missouri |
| 68 | Ophelia Johnson | 61 | Wife | — | Missouri |
| 69 | Henry Johnson | 33 | Son | Laborer | Missouri |
| 70 | Rolla Johnson | 32 | Son | Laborer | Missouri |
| 71 | Milton Johnson | 21 | Son | Farm Laborer | Missouri |
| 72 | Birdie Johnson | 19 | Son | Laborer | Missouri |
| 73 | Marie Johnson | 18 | Daughter | House Work | Missouri |
| 74 | Joe Robert Johnson | 17 | Son | Laborer | Missouri |
| 75 | Lucille Johnson THIS PERSON | 13 | Daughter | — | Missouri |
| 76 | Henry Jr. Johnson | 13 | Grandson | — | Missouri |
| 77 | Henry Jefferson | 69 | Head | Laborer | Missouri |
| 78 | Ida Jefferson | 62 | Wife | — | Missouri |
| 79 | Frank Clucas | 78 | Head | Retired | Missouri |
| 80 | Lulu Walker | 47 | Daughter | — | Missouri |
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)