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Bertha Martin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Jefferson-County, Illinois
Our Model Tree links this Bertha Martin across the 1920, 1930 and 1940 US Censuses in Jefferson-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1886), then head of a 5-person household.
Age 54
b. ~1886
Female
Spouse
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Illinois |
| Surname | Martin |
| Given Name | Bertha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Elk Prairie |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Elk Prairie |
| Est. Birth Year | ~1886 |
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 Bertha | Age | Birth yr |
|---|---|---|---|---|
| Warren Martin | Son | — | 19 | ~1921 |
| Roy Martin | Son | — | 19 | ~1921 |
| Harold Martin | Head | — | 58 | ~1882 |
| Bertha Martin | Spouse | — | 54 | ~1886 |
| Ray Martin | Son | — | 20 | ~1920 |
Census Appearances
1920
Jefferson, Illinois
Spouse, age 34
Jefferson, Illinois · implied b. ~1886 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Bertha E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Jefferson, Illinois
Other, age 44
Jefferson, Illinois · implied b. ~1886 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Bertha |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 18 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Jefferson-County, Illinois
Spouse, age 54
Jefferson-County, Illinois · implied b. ~1886 — 5 household members
| Surname | Martin |
| Given Name | Bertha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Elk Prairie |
| 1935 Residence (County) | Jefferson |
| Highest Grade | H 4 |
| 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 Bertha 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
Bertha Martin
Spouse · 1940 · age 54 · b. ~1886 · 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 — Jefferson-County, Illinois
Open full size
1940 US Federal Census — Jefferson-County, Illinois
Page Contents
31 people indexed on this census page (nara:1940:m-t0627-00816-00164)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Edward Wilson | 25 | Son | Laborer | Illinois |
| 42 | Glendall Wilson | 17 | Son | Laborer | Illinois |
| 43 | Newel Rowe | 32 | Head | Farmer | Illinois |
| 44 | Minnie Rowe | 26 | Wife | — | Illinois |
| 45 | Jerry Rowe | 5 | Son | — | Illinois |
| 46 | Ruby Rowe | 52 | Mother | — | Illinois |
| 47 | Eunice Rowe | 12 | Sister | — | Illinois |
| 48 | Mervin Martin | 30 | Head | Farmer | Illinois |
| 49 | Neta Martin | 25 | Wife | — | Illinois |
| 50 | Dotty Mae Martin | 4 | Daughter | — | Illinois |
| 51 | Ernie Lee Martin | 2 | Son | — | Illinois |
| 52 | Lue Danley | 48 | Head | Farmer | Illinois |
| 53 | Velma Danley | 42 | Wife | — | Illinois |
| 54 | Mary Odle | 69 | Head | — | Illinois |
| 55 | Golden Odle | 35 | Daughter | — | Illinois |
| 56 | Marion Odle | 14 | Son | — | Illinois |
| 57 | Leroy Odle | 12 | Son | — | Illinois |
| 58 | Arley Kelly | 39 | Head | Miner | Illinois |
| 59 | Reva Kelly | 33 | Wife | — | Illinois |
| 60 | Dwight Kelly | 15 | Son | — | Illinois |
| 61 | Bobby Kelly | 12 | Son | — | Illinois |
| 62 | Linda Kelly | 3 | Daughter | — | Illinois |
| 63 | Ronnie Kelly | 2 | Son | — | Illinois |
| 64 | Donald Kelly | 2 | Daughter | — | Illinois |
| 65 | Hoppy Newell | 69 | Head | Retired | Illinois |
| 66 | Grace Newell | 64 | Wife | — | Illinois |
| 67 | Harold Martin | 58 | Head | Farmer | Illinois |
| 68 | Bertha Martin THIS PERSON | 54 | Wife | — | Illinois |
| 69 | Ray Martin | 20 | Son | — | Illinois |
| 70 | Roy Martin | 19 | Son | — | Illinois |
| 71 | Warren Martin | 19 | Son | — | Illinois |
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)