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Hattie Martin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Jefferson-County, Iowa
Our Model Tree links this Hattie Martin across the 1920, 1930 and 1940 US Censuses in Jefferson-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1880), then head of a 2-person household.
Age 60
b. ~1880
Female
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Iowa |
| Surname | Martin |
| Given Name | Hattie E. |
| Relationship to Head | head |
| Sex | F |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Buchanan Twp. |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | H 1 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Buchanan Twp |
| Est. Birth Year | ~1880 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Hattie | Age | Birth yr |
|---|---|---|---|---|
| Hattie Martin | Head | — | 60 | ~1880 |
| Junior Martin | Son | — | 20 | ~1920 |
Census Appearances
1920
Jefferson, Iowa
Spouse, age 39
Jefferson, Iowa · implied b. ~1881 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Hattie |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Austria |
| Mother's Birthplace | Austria |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Jefferson, Iowa
Other, age 50
Jefferson, Iowa · implied b. ~1880 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Hattie |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 25 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Jefferson-County, Iowa
Head, age 60
Jefferson-County, Iowa · implied b. ~1880 — 2 household members
| Surname | Martin |
| Given Name | Hattie E. |
| Relationship to Head | head |
| Sex | F |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Buchanan Twp. |
| 1935 Residence (County) | Jefferson |
| Income (1939) | 0 |
| Highest Grade | H 1 |
| 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 Hattie Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Hattie Martin
Head · 1940 · age 60 · b. ~1880 · Iowa
★ 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, Iowa
Open full size
1940 US Federal Census — Jefferson-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01170-00027)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Henrietta M. Parsons | 58 | wife | — | Pennsylvania |
| 42 | Isabelle M. Parsons | 19 | daughter | — | Iowa |
| 43 | Thomas Dee Parsons | 18 | son | Farm Laborer | Iowa |
| 44 | Joe Bunda | 45 | head | Farmer | Iowa |
| 45 | Grace M. Bunda | 38 | wife | — | Canada-Eng |
| 46 | Joseph Bunda | 86 | father | — | Pennsylvania |
| 47 | Loyd C. Morgan | 38 | head | Foundry Worker | Iowa |
| 48 | Mary R. Morgan | 33 | wife | — | Iowa |
| 49 | Dolores Morgan | 8 | daughter | — | Iowa |
| 50 | Kenneth D. Morgan | 6 | son | — | Iowa |
| 51 | Jerry L. Morgan | 4 | son | — | Iowa |
| 52 | Donald R. Morgan | 3 | son | — | Iowa |
| 53 | Keith E. Morgan | 0 | son | — | Iowa |
| 54 | Alee Hiatt | 41 | head | Farmer | Iowa |
| 55 | Pauline A. Hiatt | 40 | wife | — | Oklahoma |
| 56 | Robert L. Hiatt | 19 | son | Farmer | Iowa |
| 57 | Mary L. Hiatt | 16 | daughter | — | Iowa |
| 58 | Lois Marie Hiatt | 11 | daughter | — | Iowa |
| 59 | Edward E. Hiatt | 9 | son | — | Iowa |
| 60 | John S. Kane | 76 | head | — | Wisconsin |
| 61 | Ella L. Kane | 70 | wife | — | Illinois |
| 62 | J. B. Emry | 48 | head | Farmer | Iowa |
| 63 | Lillie C. Emry | 49 | wife | — | Iowa |
| 64 | Loyd B. Emry | 15 | son | — | Iowa |
| 65 | Joseph Schillerstrom | 24 | head | Farm Laborer | Iowa |
| 66 | Schillerstrom | 23 | wife | — | Iowa |
| 67 | Schillerstrom | 2 | daughter | — | Iowa |
| 68 | William S. Brereton | 54 | head | Farmer | Iowa |
| 69 | Ida H. Brereton | 55 | wife | — | Iowa |
| 70 | Glenn R. Brereton | 20 | son | Farmer | Iowa |
| 71 | Lucille M. Brereton | 18 | daughter | — | Iowa |
| 72 | Dorothy L. Brereton | 15 | daughter | — | Iowa |
| 73 | Betty Jean Brereton | 13 | daughter | — | Iowa |
| 74 | Hattie E. Martin THIS PERSON | 60 | head | — | Illinois |
| 75 | Junior Swan Martin | 20 | son | Farm Laborer | Iowa |
| 76 | Frank Slafer | 46 | head | Farmer | Iowa |
| 77 | Marjorie Slafer | 33 | wife | — | Iowa |
| 78 | Kathryn Slafer | 13 | daughter | — | Iowa |
| 79 | Marilyn Slafer | 8 | daughter | — | Iowa |
| 80 | Samuel Slafer | 45 | head | Farmer | Iowa |
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)