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Margaret Black — 1940 US Census Record
Model Tree available1940 United States Federal Census · Richland-County, Ohio
Our Model Tree links this Margaret Black across the 1920, 1930 and 1940 US Censuses in Richland-County, Ohio (XGBoost, ~Confirmed), with identified parents Dean & Urma — first a daughter (b.~1915), then head of a 5-person household.
Age 25
b. ~1915
Female
Daughter
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Richland-County, Ohio |
| Surname | Black |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Mansfield |
| 1935 Residence (County) | Richland |
| Additional Details | |
| Occupation | School-Teacher |
| Industry | Grade School |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | School-Teacher |
| Township / Ward | Mansfield |
| 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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Dorothea Hayden | Other | — | 27 | ~1913 |
| Dean Black | Head | — | 57 | ~1883 |
| Mary Black | Daughter | — | 19 | ~1921 |
| Augusta Black | Other | — | 70 | ~1870 |
| Margaret Black | Daughter | — | 25 | ~1915 |
Census Appearances
1920
Richland, Ohio
Daughter, age 5
Richland, Ohio · implied b. ~1915 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Black |
| Given Name | Margaret |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | none |
| Can Read | No |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Richland, Ohio
Daughter, age 15
Richland, Ohio · implied b. ~1915 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Black |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Richland-County, Ohio
Daughter, age 25
Richland-County, Ohio · implied b. ~1915 — 5 household members
| Surname | Black |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Mansfield |
| 1935 Residence (County) | Richland |
| Occupation | School-Teacher |
| Industry | Grade School |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Black across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Dean Black (~0.92 confidence) and father Urma Black (~0.92 confidence) and father William Black (~0.92 confidence) and mother Grace Black (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Dean Black
b. ~1883
Source father
● Household
· direct · ~0.92
Father
Urma Black
b. ~1876
Source father
● Household
· direct · ~0.92
Father
William Black
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Grace Black
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Black
Daughter · 1940 · age 25 · b. ~1915 · Ohio
★ You are viewing this record
Sibling
Mary Black
Sibling · 1940 · age 19
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 — Richland-County, Ohio
Open full size
1940 US Federal Census — Richland-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03134-00697)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Francis J. Heninghaus | 34 | Head | Physician | Ohio |
| 42 | Mary Helen Heninghaus | 32 | Wife | Housework | Ohio |
| 43 | John Heninghaus | 2 | Son | — | Ohio |
| 44 | Aldine Gillion | 41 | Maid | Housework | Indiana |
| 45 | Joseph B. Montgomery | 45 | Head | Salesman | Virginia |
| 46 | Mary C. Montgomery | 37 | Wife | Housewife | Ohio |
| 47 | Frank G. Mitchell | 70 | Head | Mail-Carrier | Ohio |
| 48 | Nellie J. Mitchell | 66 | Wife | Housewife | Michigan |
| 49 | Walter J. Espley | 43 | Head | Accountant | Ohio |
| 50 | Dorothy Espley | 43 | Wife | Housewife | Ohio |
| 51 | Janice Espley | 16 | Daughter | — | Ohio |
| 52 | Glenn Hoover | 42 | Head | Salesman | Ohio |
| 53 | Gertrude Hoover | 34 | Wife | Housewife | Ohio |
| 54 | Amy Louise Hoover | 3 | Daughter | — | Ohio |
| 55 | Sarah D. Hoover | 1 | Daughter | — | Ohio |
| 56 | Mary Werty | 21 | Maid | Maid | Ohio |
| 57 | Samuel J. Matthes | 52 | Head | Civil Engineer | Indiana |
| 58 | Margaret Matthes | 37 | Wife | Housewife | Ohio |
| 59 | Arthur Smith | 35 | Head | Foreman | Ohio |
| 60 | Carlyn Smith | 29 | Wife | Housewife | Ohio |
| 61 | Linda Lee Smith | 2 | Daughter | — | Ohio |
| 62 | Inga Wolf | 18 | Maid | Maid | Germany |
| 63 | Dale Morris | 42 | Head | Accountant | Ohio |
| 64 | Katherine Morris | 38 | Wife | Housewife | Ohio |
| 65 | Robert A. Morris | 12 | Son | — | Ohio |
| 66 | James A. Dickson | 28 | Head | Florist | Ohio |
| 67 | Edna Dickson | 28 | Wife | Housewife | Ohio |
| 68 | Daniel R. Wolff | 51 | Head | Salesman | Ohio |
| 69 | Hazel M. Wolff | 48 | Wife | Housewife | Ohio |
| 70 | Betty E. Wolff | 23 | Daughter | Student | Ohio |
| 71 | Mary J. Wolff | 18 | Daughter | Student | Ohio |
| 72 | Dean Black | 57 | Head | Housewife | Ohio |
| 73 | Margaret Black THIS PERSON | 25 | Daughter | School-Teacher | Ohio |
| 74 | Mary L. Black | 19 | Daughter | Student | Ohio |
| 75 | Augusta Black | 70 | Mother-in-law | Housework | Ohio |
| 76 | Dorothea Hayden | 27 | Lodger | School Teacher | Indiana |
| 77 | Charles Newlon | 62 | Head | Machinist | Ohio |
| 78 | Mary Newlon | 53 | Wife | Housewife | Ohio |
| 79 | Robert Calmes | 41 | Head | Truck Driver | Ohio |
| 80 | Pearl Calmes | 37 | Wife | Housewife | New York |
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)