MT
Margaret Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Jefferson-County, Ohio
Our Model Tree links this Margaret Thomas across the 1920, 1930 and 1940 US Censuses in Jefferson-County, Ohio (XGBoost, ~Confirmed) — first a head (b.~1875), then head of a 4-person household.
Age 65
b. ~1875
Female
Head
Born: Wales
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Ohio |
| Surname | Thomas |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 65 |
| Marital Status | Widowed |
| Birthplace | Wales |
| 1935 Residence (City) | Steubenville |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | No 7 |
| Birth Country | Wales |
| Birthplace (normalized) | wales |
| Township / Ward | Steubenville |
| Est. Birth Year | ~1875 |
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 |
|---|---|---|---|---|
| Bronwen Dunlevy | Daughter | — | 40 | ~1900 |
| Anna Dunlevy | Daughter | — | 19 | ~1921 |
| Margaret Thomas | Head | — | 65 | ~1875 |
| Roscoe Dunlevy | Other | — | 46 | ~1894 |
Census Appearances
1920
Jefferson, Ohio
Spouse, age 45
Jefferson, Ohio · implied b. ~1875 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Wales |
| Year of Immigration | 1887 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Wales |
| Mother's Birthplace | Wales |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Welsh |
| Birth Country | Wales |
| Year of Naturalization | 1900 |
| Birthplace (normalized) | wales |
1930
Jefferson, Ohio
Other, age 55
Jefferson, Ohio · implied b. ~1875 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Margaret |
| Relationship to Head | Mother-in-law |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Widowed |
| Birthplace | Wales |
| Naturalization Status | Naturalized |
| Year of Immigration | 1896 |
| Age at First Marriage | 21 |
| Father's Birthplace | Wales |
| Mother's Birthplace | Wales |
| Occupation | none |
| Can Read/Write | Yes |
| Mother Tongue | Welsh |
| Birth Country | Wales |
| Birthplace (normalized) | wales |
1940
Jefferson-County, Ohio
Head, age 65
Jefferson-County, Ohio · implied b. ~1875 — 4 household members
| Surname | Thomas |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 65 |
| Marital Status | Widowed |
| Birthplace | Wales |
| 1935 Residence (City) | Steubenville |
| Naturalization Status | Naturalized |
| Highest Grade | No 7 |
| Birth Country | Wales |
| Birthplace (normalized) | wales |
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 Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Margaret Thomas
Head · 1940 · age 65 · b. ~1875 · 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-t0627-03091-00898)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Howard Fraley | 4 | Son | — | Same house |
| 42 | Adam Fred Roth | 73 | Father in law | — | Switzerland |
| 43 | Jacob J. Fraley | 62 | Head | 24 | Ohio |
| 44 | Blemma G. Fraley | 62 | Wife | — | Ohio |
| 45 | David W. Ruble | 58 | Head | 48 | West Virginia |
| 46 | Abbie Ruble | 66 | Wife | — | West Virginia |
| 47 | Rita E. Wells | 41 | Step daughter | — | West Virginia |
| 48 | Carlos J. Ruble | 32 | Son | 32 | West Virginia |
| 49 | Margaret B. Hartley | 6 | Grand dau | — | West Virginia |
| 50 | Margaret Thomas THIS PERSON | 65 | Head | — | Wales |
| 51 | Roscoe A. Dunlevy | 46 | Son in law | 60 | Ohio |
| 52 | Bronwen Dunlevy | 40 | Daughter | — | Pennsylvania |
| 53 | Anna Mae Dunlevy | 19 | Daughter | — | Ohio |
| 54 | Frank E. Grubbs | 62 | Head | 16 | Pennsylvania |
| 55 | Lillian E. Grubbs | 55 | Wife | — | Ohio |
| 56 | Louise Kuhns | 35 | Daughter | 44 | Ohio |
| 57 | J. Dale Kuhns | 14 | Grand son | — | Ohio |
| 58 | Joseph A. Cox | 40 | Head | 24 | Pennsylvania |
| 59 | Clara B. Cox | 34 | Wife | 16 | Ohio |
| 60 | James A. Dodds | 48 | Head | — | Pennsylvania |
| 61 | Bessie M. Dodds | 50 | Wife | — | Ohio |
| 62 | James A. Jr. Dodds | 16 | Son | — | Ohio |
| 63 | Letitia D. Spence | 56 | Head | — | Ohio |
| 64 | Louise Gussman | 50 | Lodger | Registered Nurse | Pennsylvania |
| 65 | Nellie A. Costello | 27 | Lodger | Registered Nurse | Pennsylvania |
| 66 | Sue Jane Phillips | 27 | Lodger | 48 | Ohio |
| 67 | Irene E. James | 22 | Lodger | Nurse'S Aid | West Virginia |
| 68 | Charles G. Maley | 29 | Head | 40 | Ohio |
| 69 | Helen S. Maley | 25 | Wife | 44 | Pennsylvania |
| 70 | Sarah J. Knowles | 67 | Head | — | Ohio |
| 71 | James W. Montgomery | 29 | Head | 48 | Ohio |
| 72 | Ruth S. Montgomery | 26 | Wife | — | Ohio |
| 73 | Walter J. Montgomery | 2 | Son | — | Ohio |
| 74 | Elizabeth M. Ely | 52 | Head | — | Ohio |
| 75 | Jay G. Mcclain | 59 | Head | 44 | Ohio |
| 76 | Matilda Mcclain | 57 | Wife | — | Ohio |
| 77 | Anna M. Mcclain | 21 | Daughter | 14 | Ohio |
| 78 | Harold J. Mcclain | 16 | Son | — | Ohio |
| 79 | Forest L. Dawson | 55 | Head | 32 | Ohio |
| 80 | Carrie M. Dawson | 59 | Wife | — | Ohio |
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)