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Mary Lewis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Butler-County, Ohio
Our Model Tree links this Mary Lewis across the 1920, 1930 and 1940 US Censuses in Butler-County, Ohio (XGBoost, ~Confirmed) — first a spouse (b.~1896), then head of a 5-person household.
Age 44
b. ~1896
Female
Spouse
Born: New Jersey
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Butler-County, Ohio |
| Surname | Lewis |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | New Jersey |
| 1935 Residence (City) | City of Middletown |
| 1935 Residence (County) | Butler |
| Additional Details | |
| Highest Grade | C 4 |
| 1935 Residence | Same house |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Township / Ward | City Of Middletown |
| Est. Birth Year | ~1896 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Anne Lewis | Daughter | — | 16 | ~1924 |
| Carroll Lewis | Head | — | 45 | ~1895 |
| Carroll Lewis | Son | — | 18 | ~1922 |
| William Lewis | Son | — | 8 | ~1932 |
| Mary Lewis | Spouse | — | 44 | ~1896 |
Census Appearances
1920
Hamilton, Ohio
Spouse, age 24
Hamilton, Ohio · implied b. ~1896 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | New Jersey |
| Father's Birthplace | New York |
| Occupation | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | New York |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Hamilton, Ohio
Spouse, age 34
Hamilton, Ohio · implied b. ~1896 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | New Jersey |
| Age at First Marriage | 22 |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Butler-County, Ohio
Spouse, age 44
Butler-County, Ohio · implied b. ~1896 — 5 household members
| Surname | Lewis |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | New Jersey |
| 1935 Residence (City) | City of Middletown |
| 1935 Residence (County) | Butler |
| Highest Grade | C 4 |
| 1935 Residence | Same house |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
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 Lewis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Lewis
Spouse · 1940 · age 44 · b. ~1896 · Ohio
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Butler-County, Ohio
Open full size
1940 US Federal Census — Butler-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03034-00516)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Raymond Lindsay | 42 | Head | Truck Driver | Ohio |
| 2 | La Verne Lindsay | 43 | Wife | Clerk | Tennessee |
| 3 | La Verne Lindsay | 23 | Daughter | — | Iowa |
| 4 | Ruth Lindsay | 18 | Daughter | — | Iowa |
| 5 | Paul Lindsay | 16 | Son | — | Iowa |
| 6 | Viola Troutman | 51 | Head | Office Clerk | Ohio |
| 7 | Francis Mccomas | 39 | Nephew | — | Ohio |
| 8 | J. Mccomas | 14 | Nephew | — | Ohio |
| 9 | William Gravenstein | 75 | Lodger | — | Ohio |
| 10 | Goldie Gravenstein | 28 | Lodger | — | Ohio |
| 11 | Jerry Gravenstein | 31 | Lodger | Office Clerk | Ohio |
| 12 | Linda Seabold | 64 | Head | — | Ohio |
| 13 | Marguerite Fuency | 51 | Head | House Keeper | Ohio |
| 14 | Katy Fuency | 53 | Sister | Office Clerk | Ohio |
| 15 | Samuel Evans | 59 | Head | Electric Operator | Ohio |
| 16 | Florence Evans | 61 | Sister | Secretary | Ohio |
| 17 | Lizzie Evans | 87 | Mother | — | Massachusetts |
| 18 | Ethel Evans | 29 | Daughter | — | Ohio |
| 19 | Minnie Greter | 73 | Head | Music Teacher | Ohio |
| 20 | Emma Greter | 68 | Sister | — | Ohio |
| 21 | Edward R. Smith | 32 | Husband | Office Clerk | Ohio |
| 22 | Mary E. Smith | 35 | Wife | — | Ohio |
| 23 | David Smith | 3 | Grand nephew | — | Ohio |
| 24 | Delia Weber | 72 | Head | — | Eire |
| 25 | Ruth Seabold | 48 | Lodger | Office Clerk | Ohio |
| 26 | Russel M. Pierron | 45 | Head | Doctor | Ohio |
| 27 | Evangeline Pierron | 45 | Wife | — | Ohio |
| 28 | Bettie Hur | 17 | Niece | — | Texas |
| 29 | Bertha Little | 61 | Mother in law | Milliner | Ohio |
| 30 | Carroll Lewis | 45 | Head | Minister | Ohio |
| 31 | Mary Lewis THIS PERSON | 44 | Wife | — | New Jersey |
| 32 | Carroll Jr. Lewis | 18 | Son | — | Ohio |
| 33 | Anne Lewis | 16 | Daughter | — | Ohio |
| 34 | William Lewis | 8 | Son | — | Ohio |
| 35 | Ira Shane | 57 | Head | Custodian | Ohio |
| 36 | Susan Shane | 54 | Wife | — | Ohio |
| 37 | John Carmody | 27 | Son in law | Clerk Office | Ohio |
| 38 | Margaret Carmody | 22 | Wife | — | Ohio |
| 39 | John R. Carmody | 2 | Grand son | — | Ohio |
| 40 | Charles Schauck | 43 | Head | Chief Clerk | 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)