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Bertha Martin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Piatt-County, Illinois
Our Model Tree links this Bertha Martin across the 1930 and 1940 US Censuses in Piatt-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1897), then head of a 8-person household.
Age 43
b. ~1897
Female
Spouse
Born: Kentucky
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Piatt-County, Illinois |
| Surname | Martin |
| Given Name | Bertha |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Willow Branch |
| Additional Details | |
| Highest Grade | H2 |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Township / Ward | Willow Branch |
| Est. Birth Year | ~1897 |
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 Bertha | Age | Birth yr |
|---|---|---|---|---|
| Bertha Martin | Spouse | — | 43 | ~1897 |
| Laverne Martin | Daughter | — | 19 | ~1921 |
| Bernice Martin | Daughter | — | 16 | ~1924 |
| Elbert Martin | Head | — | 44 | ~1896 |
| William Martin | Son | — | 18 | ~1922 |
| Joan Martin | Daughter | — | 5 | ~1935 |
| Imogene Martin | Daughter | — | 12 | ~1928 |
| Louise Martin | Daughter | — | 10 | ~1930 |
Census Appearances
1930
Piatt, Illinois
Spouse, age 33
Piatt, Illinois · implied b. ~1897 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Bertha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Age at First Marriage | 24 |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read/Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Piatt-County, Illinois
Spouse, age 43
Piatt-County, Illinois · implied b. ~1897 — 8 household members
| Surname | Martin |
| Given Name | Bertha |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Willow Branch |
| Highest Grade | H2 |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
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 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Bertha Martin
Spouse · 1940 · age 43 · b. ~1897 · 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 — Piatt-County, Illinois
Open full size
1940 US Federal Census — Piatt-County, Illinois
Page Contents
36 people indexed on this census page (nara:1940:m-t0627-00867-00386)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Rosa Maria Hough | 6 | daughter | — | Illinois |
| 42 | Gary Hough | 1 | son | — | Illinois |
| 43 | Emmett Johnson | 29 | head | Farmer | Illinois |
| 44 | Lois Johnson | 27 | wife | — | Illinois |
| 45 | Barbara Johnson | 9 | daughter | — | Illinois |
| 46 | Joseph Barnhart | 68 | head | Farmer | Illinois |
| 47 | Emma Barnhart | 57 | wife | — | Illinois |
| 48 | Junko Remmers | 62 | head | Farmer | Illinois |
| 49 | Helen Remmers | 44 | wife | — | Illinois |
| 50 | Harford Remmers | 13 | son | — | Illinois |
| 51 | Floyd Remmers | 10 | son | — | Illinois |
| 52 | Elbert Martin | 44 | head | Farmer | Illinois |
| 53 | Bertha Martin THIS PERSON | 43 | wife | — | Kentucky |
| 54 | Laverne Martin | 19 | daughter | — | Illinois |
| 55 | William Martin | 18 | son | — | Illinois |
| 56 | Bernice Martin | 16 | daughter | — | Illinois |
| 57 | Imogene Martin | 12 | daughter | — | Illinois |
| 58 | Louise Martin | 10 | daughter | — | Illinois |
| 59 | Joan Martin | 5 | daughter | — | Illinois |
| 64 | Chester Buchanan | 42 | head | Farm Laborer | Kentucky |
| 65 | Grace Buchanan | 41 | wife | — | Kentucky |
| 66 | Zenimon Buchanan | 20 | son | Farm Laborer | Kentucky |
| 67 | Edith Buchanan | 19 | daughter | Housekeeper | Kentucky |
| 68 | Trilby Buchanan | 16 | daughter | — | Kentucky |
| 69 | Nova Buchanan | 14 | daughter | — | Kentucky |
| 70 | Earl S. Carney | 43 | head | Farmer | Kentucky |
| 71 | Goldine Carney | 37 | wife | — | Indiana |
| 72 | James Carney | 15 | son | — | Illinois |
| 73 | Eva Carney | 6 | daughter | — | Illinois |
| 74 | Edward Welsh | 64 | head | Farmer | Illinois |
| 75 | Elizabeth Welsh | 58 | wife | — | Illinois |
| 76 | Phyllis Welsh | 14 | granddaughter | — | Illinois |
| 77 | Lloyd Sprague | 32 | head | Farmer | Illinois |
| 78 | Mildred Sprague | 23 | wife | — | Indiana |
| 79 | Billie Sprague | 9 | son | — | Illinois |
| 80 | Shirley Sprague | 5 | daughter | — | 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)