ML
Margaret Lewis — 1940 US Census Record
Model Tree available1940 United States Federal Census · St.-Louis-City-County, Missouri
Our Model Tree links this Margaret Lewis across the 1920, 1930 and 1940 US Censuses in St.-Louis-City-County, Missouri (XGBoost, ~Confirmed), with identified parents Robert & Robert — first a daughter (b.~1917), then head of a 7-person household.
Age 23
b. ~1917
Female
Daughter
Born: Missouri
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Louis-City-County, Missouri |
| Surname | Lewis |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | St. Louis (city) |
| 1935 Residence (County) | St. Louis City |
| Additional Details | |
| Occupation | Secretary |
| Industry | Drug Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1600 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Occupation | Secretary |
| Township / Ward | St Louis City |
| Est. Birth Year | ~1917 |
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 Margaret | Age | Birth yr |
|---|---|---|---|---|
| Jean Lewis | Daughter | — | 14 | ~1926 |
| Margaret Lewis | Daughter | — | 23 | ~1917 |
| Patricia Lewis | Daughter | — | 11 | ~1929 |
| John Lewis | Head | — | 51 | ~1889 |
| Patrick Buckley | Other | — | 78 | ~1862 |
| Kenneth Lewis | Son | — | 18 | ~1922 |
| Margaret Lewis | Spouse | — | 51 | ~1889 |
Census Appearances
1920
St Louis, …
Daughter, age 2
St Louis, Missouri · implied b. ~1918 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Can Write | No |
| Speaks English | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1930
St Louis, …
Daughter, age 12
St Louis, Missouri · implied b. ~1918 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Can Read/Write | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
St.-Louis-City-County, Missouri
Daughter, age 23
St.-Louis-City-County, Missouri · implied b. ~1917 — 7 household members
| Surname | Lewis |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | St. Louis (city) |
| 1935 Residence (County) | St. Louis City |
| Occupation | Secretary |
| Industry | Drug Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1600 |
| Highest Grade | Hs 4 |
| 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 Margaret Lewis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Robert Lewis (~0.92 confidence) and father Robert Lewis (~0.92 confidence) and father John Lewis (~0.92 confidence) and mother Margaret Lewis (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Robert Lewis
b. ~1884
Source father
● Household
· direct · ~0.92
Father
Robert Lewis
b. ~1885
Source father
● Household
· direct · ~0.92
Father
John Lewis
b. ~1889
Source father
● Household
· direct · ~0.92
Mother
Margaret Lewis
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Lewis
Daughter · 1940 · age 23 · b. ~1917 · Missouri
★ You are viewing this record
Sibling
Patricia Lewis
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jean Lewis
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kenneth Lewis
Sibling · 1940 · age 18
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-City-County, Missouri
Open full size
1940 US Federal Census — St.-Louis-City-County, Missouri
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02209-00719)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | John F. Mckernan | 39 | Son | Clerk | Missouri |
| 42 | Daniel Duggan | 65 | Boarder | Grave Digger | Ireland |
| 43 | Chas. J. Sr. Mcgray | 40 | Head | Clerk | Missouri |
| 44 | Ellen M. Mcgray | 40 | Wife | Stenographer | Missouri |
| 45 | Mary Ellen Mcgray | 15 | Daughter | — | Missouri |
| 46 | Chas. J. Jr. Mcgray | 14 | Son | Student | Missouri |
| 47 | Mary Mcgray | 71 | Mother | — | Missouri |
| 48 | John F. Lewis | 51 | Head | Truck Driver | Missouri |
| 49 | Margaret Lewis | 51 | Wife | — | Missouri |
| 50 | Margaret Lewis THIS PERSON | 23 | Daughter | Secretary | Missouri |
| 51 | Kenneth Lewis | 18 | Son | Clerk | Missouri |
| 52 | Jean Lewis | 14 | Daughter | — | Missouri |
| 53 | Patricia Lewis | 11 | Daughter | — | Missouri |
| 54 | Patrick Buckley | 78 | Father in law | — | Missouri |
| 55 | Sophia Plew | 44 | Head | — | Missouri |
| 56 | Herman Plew | 15 | Son | — | Missouri |
| 57 | Giles Plew | 13 | Son | — | Arizona |
| 58 | Marie Friedrichs | 82 | Mother | — | Germany |
| 59 | Leonard H. Raftery | 39 | Brother | Switchman | Missouri |
| 60 | Sylvester Raftery | 47 | Head | Painter | Missouri |
| 61 | Lillian Raftery | 42 | Wife | — | Missouri |
| 62 | Lawrence Raftery | 22 | Son | Painter | Missouri |
| 63 | Catherine Raftery | 21 | Daughter | Instructor | Missouri |
| 64 | Emmett Raftery | 18 | Son | Apprentice Painter | Missouri |
| 65 | Joseph Raftery | 15 | Son | — | Missouri |
| 66 | Lillian Raftery | 14 | Daughter | — | Missouri |
| 67 | Mary Jane Raftery | 12 | Daughter | — | Missouri |
| 68 | Richard Raftery | 8 | Son | — | Missouri |
| 69 | James Raftery | 6 | Son | — | Missouri |
| 70 | Gerald Raftery | 5 | Son | — | Missouri |
| 71 | Charles Raftery | 2 | Son | — | Missouri |
| 72 | George Tubessing | 49 | Head | Salesman | Missouri |
| 73 | Elizabeth Tubessing | 46 | Wife | — | Illinois |
| 74 | Betty Jane Tubessing | 16 | Daughter | — | Missouri |
| 75 | Robert Tubessing | 8 | Son | — | Missouri |
| 76 | Richard Tubessing | 8 | Son | — | Missouri |
| 77 | Dorothy Roodman | 23 | Boarder | Stenographer | Missouri |
| 78 | Judy Roodman | 1 | Boarder | — | Missouri |
| 79 | Louise Gabriel | 63 | Lundress | — | Illinois |
| 80 | Alexander Mcnab | 45 | Head | Salesman | Scotland |
Related Census Records
Pedigree Summary
Margaret + 3 siblings
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)