MD
Mary Devine — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Kossuth-County, Iowa
Our Model Tree links this Mary Devine across the 1930 and 1940 US Censuses in Kossuth-County, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1920), then head of a 8-person household.
Age 20
b. ~1920
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kossuth-County, Iowa |
| Surname | Devine |
| Given Name | Mary Jane |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Bancroft Town |
| 1935 Residence (County) | Kossuth |
| Additional Details | |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | C 3 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Bancroft Town |
| Est. Birth Year | ~1920 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Thomas Devine | Son | — | 16 | ~1924 |
| Margaret Devine | Daughter | — | 21 | ~1919 |
| Arthur Devine | Son | — | 15 | ~1925 |
| Mary Devine | Daughter | — | 20 | ~1920 |
| Kenneth Devine | Son | — | 22 | ~1918 |
| Emmett Devine | Son | — | 23 | ~1917 |
| John Devine | Son | — | 11 | ~1929 |
| Gillian Devine | Head | — | 47 | ~1893 |
Census Appearances
1930
Kossuth, Iowa
Daughter, age 10
Kossuth, Iowa · implied b. ~1920 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Devine |
| Given Name | Mary Elaine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Iowa |
| Age at First Marriage | 10 |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Wisconsin |
| Can Read/Write | Yes |
| Home Owned/Rented | No |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Kossuth-County, Iowa
Daughter, age 20
Kossuth-County, Iowa · implied b. ~1920 — 8 household members
| Surname | Devine |
| Given Name | Mary Jane |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Bancroft Town |
| 1935 Residence (County) | Kossuth |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | C 3 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Devine across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Devine
Daughter · 1940 · age 20 · b. ~1920 · Iowa
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Sibling
John Devine
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Emmett Devine
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kenneth Devine
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Devine
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Devine
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Devine
Sibling · 1940 · age 21
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 — Kossuth-County, Iowa
Open full size
1940 US Federal Census — Kossuth-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01173-00350)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Joe O Johnson | 66 | Head | Retired | Germany |
| 42 | Elmer Snyder | 25 | Son in law | Assistant | Iowa |
| 43 | Hilda Snyder | 25 | Daughter | — | Iowa |
| 44 | Elmer Jr Snyder | 1 | Son | — | Iowa |
| 45 | Enos B O Johnke | 48 | Head | Manager | Minnesota |
| 46 | Elizabeth Johnke | 48 | Wife | — | North Dakota |
| 47 | Norman Johnke | 20 | Son | — | North Dakota |
| 48 | John Ischem | 48 | Head | Electrician Carpenter | Iowa |
| 49 | Jessie Ischem | 33 | Wife | — | Minnesota |
| 50 | Violet Ischem | 12 | Daughter | — | Iowa |
| 51 | Mable Ischem | 8 | Daughter | — | Iowa |
| 52 | James Ischem | 6 | Son | — | Iowa |
| 53 | John Ischem | 4 | Son | — | Iowa |
| 54 | Priscilla Ischem | 1 | Daughter | — | Iowa |
| 55 | Dorothy Cylstra | 17 | Daughter | — | Minnesota |
| 56 | Henry Buckholt | 42 | Head | Truck Driver | Minnesota |
| 57 | Emory J Deitering | 31 | Head | Attendant | Iowa |
| 58 | Evelyn Deitering | 28 | Wife | — | Illinois |
| 59 | Joanne Deitering | 7 | Daughter | — | Iowa |
| 60 | Jane Deitering | 5 | Daughter | — | Iowa |
| 61 | Robert Deitering | 4 | Son | — | Iowa |
| 62 | Donald S Treese | 34 | Lodger | Attendant | Iowa |
| 63 | Otto J O Nemmers | 41 | Head | Painting | Iowa |
| 64 | Mary Ann Nemmers | 78 | Mother | — | Iowa |
| 65 | James F Sheridan | 76 | Head | Dealer | Illinois |
| 66 | Mayme Sheridan | 56 | Wife | — | Iowa |
| 67 | Betty Sheridan | 23 | Daughter | General Work | Iowa |
| 68 | Patricia Gillin | 20 | Daughter | — | Iowa |
| 69 | Gillian J Devine | 47 | Head | — | Wisconsin |
| 70 | Emmett Devine | 23 | Son | — | Iowa |
| 71 | Kenneth Devine | 22 | Son | — | Iowa |
| 72 | Margaret Devine | 21 | Daughter | — | Iowa |
| 73 | Mary Jane Devine THIS PERSON | 20 | Daughter | — | Iowa |
| 74 | Thomas Devine | 16 | Son | — | Iowa |
| 75 | Arthur Devine | 15 | Son | — | Iowa |
| 76 | John Devine | 11 | Son | — | Iowa |
| 77 | Charles M Baker | 56 | Head | Barber | Iowa |
| 78 | Ethel Baker | 52 | Wife | — | Iowa |
| 79 | Monica Baker | 25 | Daughter | Assistant | Iowa |
| 80 | Frank J Baker | 22 | Son | Salesman | Iowa |
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)