MC
Mattie Clark — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Trumbull-County, Ohio
Our Model Tree links this Mattie Clark across the 1930 and 1940 US Censuses in Trumbull-County, Ohio (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 7-person household.
Age 12
b. ~1928
Female
Daughter
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Trumbull-County, Ohio |
| Surname | Clark |
| Given Name | Mattie |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Trumbull |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Weathersfield |
| Est. Birth Year | ~1928 |
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 Mattie | Age | Birth yr |
|---|---|---|---|---|
| George Clark | Head | — | 53 | ~1887 |
| Mattie Clark | Daughter | — | 12 | ~1928 |
| Harry Clark | Son | — | 17 | ~1923 |
| Elias Clark | Daughter | — | 15 | ~1925 |
| George Clark | Son | — | 19 | ~1921 |
| James Clark | Son | — | 31 | ~1909 |
| Mattie Clark | Spouse | — | 51 | ~1889 |
Census Appearances
1930
Trumbull, Ohio
Daughter, age 3
Trumbull, Ohio · implied b. ~1927 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Mattie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Trumbull-County, Ohio
Daughter, age 12
Trumbull-County, Ohio · implied b. ~1928 — 7 household members
| Surname | Clark |
| Given Name | Mattie |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Trumbull |
| Highest Grade | No 5 |
| 1935 Residence | Ohio |
| 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 Mattie Clark across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mattie Clark
Daughter · 1940 · age 12 · b. ~1928 · Ohio
★ You are viewing this record
Sibling
James Clark
Sibling · 1940 · age 31
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elias Clark
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harry Clark
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Clark
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 — Trumbull-County, Ohio
Open full size
1940 US Federal Census — Trumbull-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03159-00629)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Claudia Green | 29 | daughter | — | Ohio |
| 42 | Otis Green | 6 | grand son | — | Ohio |
| 43 | George P. Clark | 53 | head | Laborer | Tennessee |
| 44 | Mattie Clark | 51 | wife | — | Tennessee |
| 45 | James S. Clark | 31 | son | Laborer | Tennessee |
| 46 | George Clark | 19 | son | New Worker | Ohio |
| 47 | Harry Clark | 17 | son | — | Ohio |
| 48 | Elias Clark | 15 | daughter | — | Ohio |
| 49 | Mattie Clark THIS PERSON | 12 | daughter | — | Ohio |
| 50 | Joseph P. Misel | 35 | head | Chargeman Furnace | Pennsylvania |
| 51 | Clara B. Misel | 23 | wife | — | Ohio |
| 52 | James Rounsley | 29 | head | Warehouse Laborer | Ohio |
| 53 | Anna Rounsley | 25 | wife | — | Ohio |
| 54 | Betty Rounsley | 7 | daughter | — | Ohio |
| 55 | Pauline Rounsley | 5 | daughter | — | Ohio |
| 56 | James Jr. Rounsley | 2 | son | — | Ohio |
| 57 | Enoch Morgan | 40 | head | Laborer | Pennsylvania |
| 58 | Mary Morgan | 37 | wife | — | Ohio |
| 59 | Thomas Morgan | 2 | son | — | Ohio |
| 60 | James Mckeehan | 12 | step son | — | Ohio |
| 61 | William S. Rounsley | 56 | head | Laborer | Pennsylvania |
| 62 | Mable Rounsley | 31 | wife | — | Ohio |
| 63 | Arlene Rounsley | 11 | daughter | — | Ohio |
| 64 | Clyde E. Fink | 6 | step son | — | Ohio |
| 65 | Joseph W. Roth | 37 | head | Stationary Engineer | Ohio |
| 66 | Ora Roth | 37 | wife | — | Ohio |
| 67 | Joseph Roth | 18 | son | New Worker | Ohio |
| 68 | Wanda Roth | 14 | daughter | — | Ohio |
| 69 | Dale Roth | 12 | son | — | Ohio |
| 70 | Dana Roth | 8 | daughter | — | Ohio |
| 71 | Edm. Della Penna | 39 | head | — | Pennsylvania |
| 72 | James Penna | 17 | son | — | Ohio |
| 73 | Alice Penna | 16 | daughter | — | Ohio |
| 74 | Lois Penna | 14 | daughter | — | Ohio |
| 75 | Edward Penna | 13 | son | — | Ohio |
| 76 | Charles Penna | 12 | son | — | Ohio |
| 77 | Jean Penna | 11 | daughter | — | Ohio |
| 78 | Harriet Penna | 9 | daughter | — | Ohio |
| 79 | Delores Penna | 5 | daughter | — | Ohio |
| 80 | Louis Penna | 3 | son | — | Ohio |
Related Census Records
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)