MC
Margaret Clark — 1940 US Census Record
Model Tree available1940 United States Federal Census · Marion-County, Indiana
Our Model Tree links this Margaret Clark across the 1920, 1930 and 1940 US Censuses in Marion-County, Indiana (XGBoost, ~Confirmed), with identified parents Arthur & Arthur — first a daughter (b.~1920), then head of a 6-person household.
Age 20
b. ~1920
Female
Daughter
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Indiana |
| Surname | Clark |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Occupation | Stenographer |
| Industry | Real Estate |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 60 |
| Highest Grade | H-4 |
| 1935 Residence | Same house |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Stenographer |
| Township / Ward | Indianapolis |
| Est. Birth Year | ~1920 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Martha Clark | Daughter | — | 17 | ~1923 |
| Margaret Clark | Daughter | — | 20 | ~1920 |
| Barbara Clark | Daughter | — | 5 | ~1935 |
| Arthur Clark | Head | — | 48 | ~1892 |
| Marshall Tucker | Other | — | 55 | ~1885 |
| Etta Clark | Spouse | — | 47 | ~1893 |
Census Appearances
1920
Marion, Indiana
Other, age
Marion, Indiana · implied b. ~1920 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Margaret L. |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| 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 10
Marion, Indiana · implied b. ~1920 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Margaret F |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| 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 20
Marion-County, Indiana · implied b. ~1920 — 6 household members
| Surname | Clark |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Occupation | Stenographer |
| Industry | Real Estate |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 60 |
| 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 Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Arthur Clark (~0.92 confidence) and father Arthur Clark (~0.92 confidence) and mother Etta Clark (~0.92 confidence) and mother Ella Clark (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Arthur Clark
b. ~1875
Source father
● Household
· direct · ~0.92
Father
Arthur Clark
b. ~1892
Source father
● Household
· direct · ~0.92
Mother
Etta Clark
b. ~1893
Source mother
● Household
· direct · ~0.92
Mother
Ella Clark
b. ~1893
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Clark
Daughter · 1940 · age 20 · b. ~1920 · Indiana
★ You are viewing this record
Sibling
Barbara Clark
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Martha Clark
Sibling · 1940 · age 17
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-t0627-01129-00868)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Sandra May Faus | 1 | Daughter | — | Indiana |
| 42 | Dorman True | 54 | Head | Collection Manager | Kentucky |
| 43 | Elsie True | 54 | Wife | — | Kentucky |
| 44 | James Alexander | 59 | Head | Laborer | Kentucky |
| 45 | Gertrude Alexander | 49 | Wife | Saleslady | Kentucky |
| 46 | Joseph Knight | 59 | Head | Painter | Tennessee |
| 47 | Minnie Knight | 46 | Wife | — | Indiana |
| 48 | William Prichard | 72 | Head | Proprietor | Indiana |
| 49 | Vina Prichard | 71 | Wife | — | Indiana |
| 50 | Riley Devings | 44 | Head | Molder | Indiana |
| 51 | Edna Devings | 44 | Wife | — | Indiana |
| 52 | Sandra Sue Devings | 5 | Daughter | — | Indiana |
| 53 | Harry Tilson | 26 | Head | Musician | Indiana |
| 54 | Ethel Tilson | 26 | Wife | — | Indiana |
| 55 | Marsha Tilson | 2 | Daughter | — | Indiana |
| 56 | Starr Tilson | 0 | Son | — | Indiana |
| 57 | Charles Sims | 33 | Head | Plumber | Indiana |
| 58 | Gertrude Sims | 31 | Wife | — | Indiana |
| 59 | Peggy Ann Sims | 10 | Daughter | — | Indiana |
| 60 | Frank Brodhecker | 50 | Head | Special Clerk | Indiana |
| 61 | Sarah Ernest | 65 | Lodger | Housekeeper | Kentucky |
| 62 | Harold Callon | 32 | Head | Machine Operator | Indiana |
| 63 | Gertrude Callon | 32 | Wife | — | Indiana |
| 64 | Robert Callon | 5 | Son | — | Indiana |
| 65 | Michael Callon | 3 | Son | — | Indiana |
| 66 | Marilyn Callon | 1 | Daughter | — | Indiana |
| 67 | Anna Lansaw | 71 | Aunt | Dishwasher | Indiana |
| 68 | Arthur G. Clark | 48 | Head | Yardmaster | Indiana |
| 69 | Etta Clark | 47 | Wife | — | Indiana |
| 70 | Margaret Clark THIS PERSON | 20 | Daughter | Stenographer | Indiana |
| 71 | Martha Clark | 17 | Daughter | — | Indiana |
| 72 | Barbara Jean Clark | 5 | Daughter | — | Indiana |
| 73 | Marshall Tucker | 55 | Brother-in-law | Laborer | Indiana |
| 74 | Clayton Schultz | 38 | Head | Clerk | Indiana |
| 75 | Yvonne Schultz | 30 | Wife | Asst. Operator | Indiana |
| 76 | Nathaniel Schultz | 8 | Son | — | Indiana |
| 77 | John Schultz | 6 | Son | — | Indiana |
| 78 | Ira Deckin | 31 | Head | Laborer | New York |
| 79 | Della Deckin | 24 | Wife | — | Indiana |
| 80 | Robert Deckin | 4 | Son | — | Indiana |
Pedigree Summary
Margaret + 2 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)