MC
Mary Carney — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Jefferson-County, Ohio
Our Model Tree links this Mary Carney across the 1930 and 1940 US Censuses in Jefferson-County, Ohio (XGBoost, ~Confirmed) — first a spouse (b.~1916), then head of a 6-person household.
Age 24
b. ~1916
Female
Spouse
Born: Ohio
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Ohio |
| Surname | Carney |
| Given Name | Mary |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Steubenville City |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Steubenville 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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Doris Carney | Daughter | — | 2 | ~1938 |
| Mary Carney | Daughter | — | ~1940 | |
| George Carney | Son | — | 4 | ~1936 |
| Lester Carney | Son | — | 6 | ~1934 |
| Mary Carney | Spouse | — | 24 | ~1916 |
| Lester Carney | Head | — | 29 | ~1911 |
Census Appearances
1930
Jefferson, Ohio
Daughter, age 13
Jefferson, Ohio · implied b. ~1917 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kearney |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | West Virginia |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Jefferson-County, Ohio
Spouse, age 24
Jefferson-County, Ohio · implied b. ~1916 — 6 household members
| Surname | Carney |
| Given Name | Mary |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Steubenville City |
| 1935 Residence (County) | Jefferson |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 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 Mary Carney across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Carney
Spouse · 1940 · age 24 · b. ~1916 · Ohio
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Jefferson-County, Ohio
Open full size
1940 US Federal Census — Jefferson-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03091-00287)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary Blaschek | 27 | wife | — | Pennsylvania |
| 2 | Eugene Paul Blaschek | 1 | son | — | Pennsylvania |
| 3 | Raymond Martin | 47 | head | Laborer | Ohio |
| 4 | Stella Martin | 39 | wife | House Keeper | Ohio |
| 5 | Joseph Dzakich | 54 | head | Laborer | Yugoslavia |
| 6 | Victoria Dzakich | 45 | wife | — | Poland |
| 7 | Sophia Golas | 18 | head | Maid | Pennsylvania |
| 8 | Genevieve Golas | 15 | step-daughter | After School | Pennsylvania |
| 9 | Hattie Rose Golas | 13 | step-daughter | House Work | Pennsylvania |
| 10 | Anthony Golas | 11 | step-son | — | Ohio |
| 11 | Phillip Katich | 44 | head | Laborer | Yugoslavia |
| 12 | Anna Katich | 47 | wife | — | Ohio |
| 13 | Phillip Jr Katich | 16 | son | News Boy | Ohio |
| 14 | Rose Katich | 13 | daughter | — | Ohio |
| 15 | Henry Katich | 11 | son | — | Ohio |
| 16 | Emma Katich | 6 | daughter | — | Ohio |
| 17 | Michael Simakin | 49 | head | Oiler | Czechoslovakia |
| 18 | Anna Simakin | 47 | wife | — | Czechoslovakia |
| 19 | Margaret Jane Simakin | 19 | daughter | Maid | Ohio |
| 20 | Donald (Ken) Walker | 28 | son-in-law | — | Ohio |
| 21 | Anna Mary Walker | 24 | daughter | — | Ohio |
| 22 | Lester Carney | 29 | head | Janitor | N. Carolina |
| 23 | Mary Carney THIS PERSON | 24 | wife | — | Ohio |
| 24 | Lester Harris Carney | 6 | son | — | Ohio |
| 25 | George Raymond Carney | 4 | son | — | Ohio |
| 26 | Doris Jeanne Carney | 2 | daughter | — | Ohio |
| 27 | Mary Alice Carney | 0 | daughter | — | Ohio |
| 28 | Lamanuel Carney | 37 | head | Truck Driver | N. Carolina |
| 29 | Louise Carney | 35 | wife | Janitress | Ohio |
| 30 | Lamanuel Jr. Carney | 11 | son | — | Ohio |
| 31 | Chesley Carney | 9 | son | — | Ohio |
| 32 | Azella Johnson | 42 | sister-in-law | Mender | N. Carolina |
| 33 | Clarence Mowder | 33 | head | Oiler | W. Virginia |
| 34 | Carma Mowder | 31 | wife | — | Ohio |
| 35 | William Mowder | 9 | son | — | W. Virginia |
| 36 | James Mowder | 6 | son | — | W. Virginia |
| 37 | Marlene Mowder | 4 | daughter | — | Ohio |
| 38 | Andrew Jr Brondos | 34 | head | Gasoline Station Attend. | W. Virginia |
| 39 | Pauline Brondos | 27 | wife | — | Ohio |
| 40 | Andy Sr Brondos | 55 | father | Helping | Czechoslovakia |
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)