MH
Margaret Hart — 1940 US Census Record
Model Tree available1940 United States Federal Census · St.-Louis-County, Missouri
Our Model Tree links this Margaret Hart across the 1920, 1930 and 1940 US Censuses in St.-Louis-County, Missouri (XGBoost, ~Confirmed), with identified parents Roy & Roy — first a daughter (b.~1916), then head of a 4-person household.
Age 24
b. ~1916
Female
Daughter
Born: Nebraska
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Louis-County, Missouri |
| Surname | Hart |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Nebraska |
| 1935 Residence (City) | Webster Groves City |
| 1935 Residence (County) | St. Louis |
| Additional Details | |
| Occupation | Stenographer |
| Industry | Advertising Co. |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 236 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
| Occupation | Stenographer |
| Township / Ward | Webster Groves City |
| Est. Birth Year | ~1916 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Hart | Daughter | — | 24 | ~1916 |
| Clem Hart | Daughter | — | 21 | ~1919 |
| Roy Hart | Head | — | 48 | ~1892 |
| Clarissa Hart | Spouse | — | 50 | ~1890 |
Census Appearances
1920
St Louis, …
Daughter, age 3
St Louis, Missouri · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hart |
| Given Name | Margaret |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Nebraska |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1930
St Louis, …
Daughter, age 14
St Louis, Missouri · implied b. ~1916 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hart |
| Given Name | Margaret H. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Nebraska |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Can Read/Write | Yes |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1940
St.-Louis-County, Missouri
Daughter, age 24
St.-Louis-County, Missouri · implied b. ~1916 — 4 household members
| Surname | Hart |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Nebraska |
| 1935 Residence (City) | Webster Groves City |
| 1935 Residence (County) | St. Louis |
| Occupation | Stenographer |
| Industry | Advertising Co. |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 236 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
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 Hart across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Roy Hart (~0.92 confidence) and father Roy Hart (~0.92 confidence) and mother Clarissa Hart (~0.92 confidence) and mother Gladis Hart (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Roy Hart
b. ~1892
Source father
● Household
· direct · ~0.92
Father
Roy Hart
b. ~1893
Source father
● Household
· direct · ~0.92
Mother
Clarissa Hart
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Gladis Hart
b. ~1891
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Hart
Daughter · 1940 · age 24 · b. ~1916 · Missouri
★ You are viewing this record
Sibling
Clem Hart
Sibling · 1940 · age 21
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-t0627-02149-00743)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles Callan | 49 | Head | Teacher | Michigan |
| 2 | Florence Callan | 50 | Wife | — | Michigan |
| 3 | Lawrence Callan | 25 | Son | Commercial Advertiser | Missouri |
| 4 | Helen Callan | 21 | Daughter | — | Missouri |
| 5 | Virginia Frank | 23 | Daughter | Saleslady | Missouri |
| 6 | Cedric Frank | 31 | Son in law | Compounder | Missouri |
| 7 | Olive Veil | 72 | Head | — | Missouri |
| 8 | Josephine Giles | 54 | Maid | Maid | Mississippi |
| 9 | Thornton Smalley | 46 | Head | Credit Man | Illinois |
| 10 | Dora Smalley | 46 | Wife | Book-Keeper | Missouri |
| 11 | Anna Merivether | 70 | Mother-in-law | — | Missouri |
| 12 | Joseph Kilturg | 47 | Head | Office Manager | Illinois |
| 13 | Elizabeth Kilturg | 45 | Wife | — | Illinois |
| 14 | Marilyn Kilturg | 20 | Daughter | — | Minnesota |
| 15 | Joseph Kilturg | 13 | Son | — | Illinois |
| 16 | Cecil C. Connelly | 43 | Head | Dentist | Texas |
| 17 | Dorothy Connelly | 34 | Wife | — | Texas |
| 18 | C. Clayton Connelly | 10 | Son | — | Missouri |
| 19 | Patricia Connelly | 9 | Daughter | — | Missouri |
| 20 | Roy Beck | 61 | Head | Interviewer | Missouri |
| 21 | Lora Beck | 51 | Wife | — | Missouri |
| 22 | Alan Beck | 30 | Son | Advertising Manager | Missouri |
| 23 | Martha Lynn Beck | 18 | Daughter | Pbx Operator | Missouri |
| 24 | Brother Clyde | None | M | General Practice | — |
| 25 | Russell Henderson | 65 | Head | — | Minnesota |
| 26 | Louisa Henderson | 58 | Wife | — | Missouri |
| 27 | Roy P. Hart | 48 | Head | Civil Engineer | Missouri |
| 28 | Clarissa Hart | 50 | Wife | — | Missouri |
| 29 | Margaret Hart THIS PERSON | 24 | Daughter | Stenographer | Nebraska |
| 30 | Clem At. Hart | 21 | Daughter | — | Missouri |
| 31 | Ben Schmidtke | 35 | Head | Minister | Missouri |
| 32 | Opal Schmidtke | 35 | Wife | — | Arkansas |
| 33 | Charmae Schmidtke | 1 | Daughter | — | Missouri |
| 34 | Marjorie Hearin | 16 | Maid | Maid | Missouri |
| 35 | Void Hearin | None | — | — | — |
| 36 | Edward Lutgeret | 48 | Head | Salesman | Missouri |
| 37 | Emma Lutgeret | 44 | Wife | — | Missouri |
| 38 | Robert Lutgeret | 14 | Son | — | Missouri |
| 39 | Richard Lutgeret | 9 | Son | — | Missouri |
| 40 | Wilbur Pritchard | 47 | Head | Salesman | Michigan |
Pedigree Summary
Margaret + 1 sibling
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)