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Martha Long — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Henry-County, Illinois
Our Model Tree links this Martha Long across the 1930 and 1940 US Censuses in Henry-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1899), then head of a 7-person household.
Age 41
b. ~1899
Female
Spouse
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Henry-County, Illinois |
| Surname | Long |
| Given Name | Martha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Western Township |
| 1935 Residence (County) | Henry |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | H 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Western Township |
| Est. Birth Year | ~1899 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Martha | Age | Birth yr |
|---|---|---|---|---|
| Albin Peterson | Other | — | 51 | ~1889 |
| Jean Long | Daughter | — | 14 | ~1926 |
| Martha Long | Spouse | — | 41 | ~1899 |
| Francis Long | Daughter | — | 16 | ~1924 |
| Mary Long | Daughter | — | 17 | ~1923 |
| Dale Long | Son | — | 12 | ~1928 |
| John Long | Head | — | 46 | ~1894 |
Census Appearances
1930
Henry, Illinois
Spouse, age 32
Henry, Illinois · implied b. ~1898 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Long |
| Given Name | Martha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 24 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Henry-County, Illinois
Spouse, age 41
Henry-County, Illinois · implied b. ~1899 — 7 household members
| Surname | Long |
| Given Name | Martha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Western Township |
| 1935 Residence (County) | Henry |
| Class of Worker | 0 |
| Highest Grade | H 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 Martha Long across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Martha Long
Spouse · 1940 · age 41 · b. ~1899 · Illinois
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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 — Henry-County, Illinois
Open full size
1940 US Federal Census — Henry-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00812-00715)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Willie Woolley | 14 | Son | — | Illinois |
| 42 | Anna Woolley | 81 | Mother | — | Illinois |
| 43 | Charles Howard | 27 | Head | Farmer | Illinois |
| 44 | Ruth Howard | 32 | Wife | — | Kansas |
| 45 | Melvin Derrickson | 50 | Head | Farmer | Illinois |
| 46 | Alvin Derrickson | 43 | Brother | Farmer | Illinois |
| 47 | Bessie Derrickson | 40 | Sister | — | Illinois |
| 48 | Louis Borlick | 18 | Head | Laborer | Missouri |
| 49 | Emil Hemmuburg | 79 | Head | — | Sweden |
| 50 | Sigfrid Hemmuburg | 46 | Son | Farmer | Illinois |
| 51 | Esther A Hemmuburg | 40 | Daughter | — | Illinois |
| 52 | Floyd Mink | 20 | Hired Hand | Laborer | Missouri |
| 53 | Ernest Anderson | 33 | Head | Farmer | Illinois |
| 54 | Ruth M Anderson | 30 | Wife | — | Illinois |
| 55 | Dwight G Anderson | 3 | Son | — | Illinois |
| 56 | Martin Hillbloom | 51 | Head | Farmer | Illinois |
| 57 | Viola Hillbloom | 39 | Wife | — | Sweden |
| 58 | Rosalie Sandahl | 16 | Daughter | — | Illinois |
| 59 | William Sandahl | 12 | Son | — | Illinois |
| 60 | Leon Hillbloom | 58 | Brother | Laborer | Illinois |
| 61 | John Dunnam | 61 | Head | Farmer | Illinois |
| 62 | Harry Dunnam | 59 | Brother | Farmer | Illinois |
| 63 | Maude Dunnam | 56 | Sister in law | — | Illinois |
| 64 | John Long | 46 | Head | Farmer | Illinois |
| 65 | Martha Long THIS PERSON | 41 | Wife | — | Illinois |
| 66 | Mary Anna Long | 17 | Daughter | — | Illinois |
| 67 | Francis Long | 16 | Daughter | — | Illinois |
| 68 | Jean Long | 14 | Daughter | — | Illinois |
| 69 | Dale Long | 12 | Son | — | Illinois |
| 70 | Albin Peterson | 51 | Hired Hand | Laborer | Sweden |
| 71 | Wilfred Morrison | 47 | Head | Farmer | Illinois |
| 72 | Helen Morrison | 46 | Wife | — | Kansas |
| 73 | Mildred Johnson | 20 | Maid | Maid | Illinois |
| 74 | Robert Johnson | 46 | Hired Hand | Laborer | Sweden |
| 75 | Marie Johnson | 37 | Wife | — | Illinois |
| 76 | Elmer Johnson | 17 | Son | Farmer | Illinois |
| 77 | Carl Johnson | 15 | Son | — | Illinois |
| 78 | Willard Johnson | 14 | Son | — | Illinois |
| 79 | Thomas Kerr | 77 | Head | Farmer | Illinois |
| 80 | Nellie Kerr | 55 | Daughter | — | Illinois |
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)