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Mary Arnold — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Sullivan-County, Indiana
Our Model Tree links this Mary Arnold across the 1920, 1930 and 1940 US Censuses in Sullivan-County, Indiana (XGBoost, ~Confirmed) — first a spouse (b.~1875), then head of a 4-person household.
Age 65
b. ~1875
Female
Spouse
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Sullivan-County, Indiana |
| Surname | Arnold |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 65 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Cass Township |
| 1935 Residence (County) | Sullivan |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Cass Township |
| 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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Kathrin Arnold | Daughter | — | 24 | ~1916 |
| Lewis Arnold | Head | — | 65 | ~1875 |
| Edward Arnold | Son | — | 22 | ~1918 |
| Mary Arnold | Spouse | — | 65 | ~1875 |
Census Appearances
1920
Sullivan, Indiana
Spouse, age 45
Sullivan, Indiana · implied b. ~1875 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Arnold |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Wales |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Welch |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Sullivan, Indiana
Other, age 55
Sullivan, Indiana · implied b. ~1875 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Arnold |
| Given Name | Mary E |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 20 |
| Father's Birthplace | Wales |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Sullivan-County, Indiana
Spouse, age 65
Sullivan-County, Indiana · implied b. ~1875 — 4 household members
| Surname | Arnold |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 65 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Cass Township |
| 1935 Residence (County) | Sullivan |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Arnold across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Arnold
Spouse · 1940 · age 65 · b. ~1875 · Indiana
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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 — Sullivan-County, Indiana
Open full size
1940 US Federal Census — Sullivan-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01097-00110)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Martha Hutchins | 82 | Mother | — | Indiana |
| 2 | Alex E. Rose | 38 | Head | Farmer | Indiana |
| 3 | Marie Rose | 40 | Wife | — | Indiana |
| 4 | Betty E. Rose | 13 | Daughter | — | Indiana |
| 5 | William A. Rose | 7 | Son | — | Indiana |
| 6 | John W. Walter | 43 | Head | Farmer | Indiana |
| 7 | Clara Walter | 53 | Wife | — | Indiana |
| 8 | Benjamin F. Jewell | 25 | Head | Laborer | Indiana |
| 9 | Lois Jewell | 25 | Wife | — | Indiana |
| 10 | Barbara L. Jewell | 7 | Daughter | — | Indiana |
| 11 | Shirley A. Jewell | 3 | Daughter | — | Indiana |
| 12 | Janice Jewell | 2 | Daughter | — | Indiana |
| 13 | Clarence Harlow | 45 | Head | Coal Miner | Indiana |
| 14 | Viola Harlow | 44 | Wife | — | Indiana |
| 15 | Ronald Harlow | 10 | Son | — | Indiana |
| 16 | Donald Harlow | 15 | Son | — | Indiana |
| 17 | Patricia Harlow | 10 | Daughter | — | Indiana |
| 18 | Thomas C. Enline | 73 | Head | Farmer | Indiana |
| 19 | May Enline | 62 | Wife | — | Indiana |
| 20 | John L. Enline | 68 | Brother | Farmer | Indiana |
| 21 | Fay Pringer | 41 | Daughter | Teacher | Indiana |
| 22 | Frank Arnold | 36 | Head | Switchman | Iowa |
| 23 | Hazel Arnold | 36 | Wife | — | Indiana |
| 24 | Russell Arnold | 14 | Son | — | Indiana |
| 25 | Frank Jr. Arnold | 14 | Son | — | Indiana |
| 26 | Patricia A. Arnold | 9 | Daughter | — | Indiana |
| 27 | William Harrison | 41 | Head | Factory Employee | Scotland |
| 28 | Margaret Harrison | 33 | Wife | — | Indiana |
| 29 | William Jr. Harrison | 12 | Son | — | Indiana |
| 30 | Lester Harrison | 11 | Son | — | Indiana |
| 31 | Evan Harrison | 8 | Son | — | Indiana |
| 32 | Mary E. Harrison | 2 | Daughter | — | Indiana |
| 33 | Lewis Arnold | 65 | Head | Laborer | Iowa |
| 34 | Mary Arnold THIS PERSON | 65 | Wife | — | Illinois |
| 35 | Kathrin R. Arnold | 24 | Daughter | Laborer | Indiana |
| 36 | Edward Arnold | 22 | Son | Nursery Worker | Indiana |
| 37 | Russell Arnold | 41 | Head | Laborer | Iowa |
| 38 | Edna Arnold | 37 | Wife | — | Indiana |
| 39 | Alice Arnold | 18 | Daughter | — | Indiana |
| 40 | Maxine Arnold | 17 | Daughter | — | Indiana |
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)