MH
Margaret Hart — 1940 US Census Record
Model Tree available1940 United States Federal Census · Marion-County, Indiana
Our Model Tree links this Margaret Hart across the 1920, 1930 and 1940 US Censuses in Marion-County, Indiana (XGBoost, ~Confirmed), with identified parents Frank & James — first a daughter (b.~1915), then head of a 4-person household.
Age 25
b. ~1915
Female
Daughter
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Indiana |
| Surname | Hart |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Occupation | Typist |
| Industry | State Highway |
| Class of Worker | GW |
| Hours Worked | 44 |
| Income (1939) | 1300 |
| Highest Grade | H-4 |
| 1935 Residence | Same house |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Typist |
| Township / Ward | Indianapolis |
| Est. Birth Year | ~1915 |
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 |
|---|---|---|---|---|
| Helen Hart | Spouse | — | 56 | ~1884 |
| James Hart | Head | — | 68 | ~1872 |
| James Hart | Son | — | 22 | ~1918 |
| Margaret Hart | Daughter | — | 25 | ~1915 |
Census Appearances
1920
Marion, Indiana
Daughter, age 2
Marion, Indiana · implied b. ~1918 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hart |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Marion, Indiana
Daughter, age 14
Marion, Indiana · implied b. ~1916 — 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 | 14 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Marion-County, Indiana
Daughter, age 25
Marion-County, Indiana · implied b. ~1915 — 4 household members
| Surname | Hart |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Occupation | Typist |
| Industry | State Highway |
| Class of Worker | GW |
| Hours Worked | 44 |
| Income (1939) | 1300 |
| Highest Grade | H-4 |
| 1935 Residence | Same house |
| 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 Margaret Hart across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Frank Hart (~0.92 confidence) and father James Hart (~0.92 confidence) and father James Hart (~0.92 confidence) and mother Helen Hart (~0.92 confidence) and mother Martha Hart (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Frank Hart
b. ~1872
Source father
● Household
· direct · ~0.92
Father
James Hart
b. ~1880
Source father
● Household
· direct · ~0.92
Father
James Hart
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Helen Hart
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Martha Hart
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Hart
Daughter · 1940 · age 25 · b. ~1915 · Indiana
★ You are viewing this record
Sibling
James Hart
Sibling · 1940 · age 22
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
40 people indexed on this census page (nara:1940:m-t0627-01125-00839)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Harold Schaffner | 35 | Head | Machinist | Indiana |
| 42 | Mary Schaffner | 38 | Wife | — | Indiana |
| 43 | Ann Schaffner | 4 | Daughter | — | Indiana |
| 44 | Robert Schaffner | 3 | Son | — | Indiana |
| 45 | Frank Scharlan | 30 | Head | Meter-Reader | Illinois |
| 46 | Helen Scharlan | 29 | Wife | Clerk | Indiana |
| 47 | Michael W. Welch | 49 | Head | Fireman | Indiana |
| 48 | Henrietta Welch | 47 | Wife | — | Indiana |
| 49 | Bud Beeler | 29 | Son-in-law | Jeweler | Indiana |
| 50 | Dorothy Beeler | 27 | Daughter | — | Indiana |
| 51 | Diane Beeler | 1 | Grand daughter | — | Indiana |
| 52 | Deanna Beeler | 1 | Grand daughter | — | Indiana |
| 53 | John A. Mcginty | 48 | Head | Automobile Dealer | Indiana |
| 54 | Loretta Mcginty | 45 | Wife | — | Illinois |
| 55 | Mary Mcginty | 26 | Daughter | Secretary | Indiana |
| 56 | Roger A. Jones | 39 | Head | Foreman | Kansas |
| 57 | Ruth Jones | 37 | Wife | — | Illinois |
| 58 | Raymond Jones | 15 | Son | — | Illinois |
| 59 | Marilyn Jones | 8 | Daughter | — | Illinois |
| 60 | Carl Whitford | 53 | Head | Fireman | Indiana |
| 61 | Martha Whitford | 53 | Wife | — | Indiana |
| 62 | Morris Culbertson | 24 | Head | Heat Treat | Ohio |
| 63 | Delpha Culbertson | 21 | Wife | Cashier | Indiana |
| 64 | August Enderlin | 26 | Head | Production Manager | Indiana |
| 65 | Joan Enderlin | 25 | Wife | — | Wisconsin |
| 66 | August Jr. Enderlin | 5 | Son | — | Indiana |
| 67 | Eugene Enderlin | 2 | Son | — | Indiana |
| 68 | Misinformed | None | — | — | — |
| 69 | James E. Hart | 68 | Head | Clerk | Indiana |
| 70 | Helen Hart | 56 | Wife | — | Indiana |
| 71 | Margaret Hart THIS PERSON | 25 | Daughter | Typist | Indiana |
| 72 | James Jr. Hart | 22 | Son | Clerk | Indiana |
| 73 | Herman Garnett | 38 | Head | Record Maker | Indiana |
| 74 | Helen Garnett | 33 | Wife | Typist | Indiana |
| 75 | William Sinclair | 8 | Step son | — | Indiana |
| 76 | Marie Kimberlin | 52 | Mother-in-law | Typist | Indiana |
| 77 | Janet Engelhart | 15 | Sister-in-law | — | Indiana |
| 78 | Kenneth Dunn | 25 | Head | Topper | Indiana |
| 79 | Grace Dunn | 25 | Wife | — | Indiana |
| 80 | James Dunn | 2 | Son | — | Indiana |
Pedigree Summary
Margaret + 1 sibling
Gen 1 · 5 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)