CM
Clara Martin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Jefferson-County, Illinois
Our Model Tree links this Clara Martin across the 1920, 1930 and 1940 US Censuses in Jefferson-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1901), then head of a 4-person household.
Age 39
b. ~1901
Female
Spouse
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Illinois |
| Surname | Martin |
| Given Name | Clara |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Mt Vernon |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Mt Vernon |
| Est. Birth Year | ~1901 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Clara | Age | Birth yr |
|---|---|---|---|---|
| Maxine Martin | Daughter | — | 15 | ~1925 |
| Carl Martin | Son | — | 11 | ~1929 |
| Clara Martin | Spouse | — | 39 | ~1901 |
| Bill Martin | Head | — | 43 | ~1897 |
Census Appearances
1920
Jefferson, Illinois
Spouse, age 19
Jefferson, Illinois · implied b. ~1901 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Clara |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Jefferson, Illinois
Other, age 30
Jefferson, Illinois · implied b. ~1900 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Clara |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 17 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Jefferson-County, Illinois
Spouse, age 39
Jefferson-County, Illinois · implied b. ~1901 — 4 household members
| Surname | Martin |
| Given Name | Clara |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Mt Vernon |
| 1935 Residence (County) | Jefferson |
| Highest Grade | 7 |
| 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 Clara Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Clara Martin
Spouse · 1940 · age 39 · b. ~1901 · Illinois
★ 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, Illinois
Open full size
1940 US Federal Census — Jefferson-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00816-00747)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Calvin Williams | 17 | Son | — | Illinois |
| 42 | Samuel B Williams | 86 | Father | — | Illinois |
| 43 | Elsie Williams | 52 | Sister | — | Illinois |
| 44 | Steve Shehorn | 56 | Head | Farm Operator | Illinois |
| 45 | Julia Shehorn | 52 | Wife | — | Indiana |
| 46 | Everett O Shelton | 53 | Head | Laborer | Illinois |
| 47 | Iva Shelton | 50 | Wife | — | Illinois |
| 48 | Hazel Shelton | 29 | Daughter | — | Illinois |
| 49 | Myrtle Shelton | 15 | Daughter | — | Illinois |
| 50 | Wanda Lea Shelton | 7 | Daughter | — | Illinois |
| 51 | Asa Childers | 42 | Head | Carpenter | Illinois |
| 52 | Daisy Childers | 39 | Wife | — | Illinois |
| 53 | Jessie Childers | 17 | Son | — | Illinois |
| 54 | Flora Alice Childers | 15 | Daughter | — | Illinois |
| 55 | Nora Irene Childers | 13 | Daughter | — | Illinois |
| 56 | Glen D Smith | 35 | Head | District Assistant Supervisor | Illinois |
| 57 | Lula Smith | 35 | Wife | — | Illinois |
| 58 | Charles P Smith | 15 | Son | — | Illinois |
| 59 | Darrin L Smith | 13 | Son | — | Illinois |
| 60 | Delbert Smith | 11 | Son | — | Illinois |
| 61 | Ronald Smith | 9 | Son | — | Illinois |
| 62 | Walter Glass | 41 | Head | Tractor Driver | Illinois |
| 63 | Bertha Glass | 40 | Wife | — | Illinois |
| 64 | Walter Leroy Glass | 19 | Son | Filling Station Attendant | Illinois |
| 65 | Agnes Marie Glass | 17 | Daughter | — | Illinois |
| 66 | Mary Irene Glass | 15 | Daughter | — | Illinois |
| 67 | Fredrick Bowers | 22 | Head | Painter | Illinois |
| 68 | Ina Arbell Bowers | 18 | Wife | — | Illinois |
| 69 | Walter Gauen | 40 | Head | Laborer | Illinois |
| 70 | Myrtle Gauen | 29 | Wife | — | Illinois |
| 71 | Blanche Gauen | 3 | Daughter | — | Illinois |
| 72 | Alva Heerman | 69 | Head | — | Illinois |
| 73 | Thelma Heerman | 22 | Daughter | — | Illinois |
| 74 | Oscar R Skinner | 69 | Head | Farm Operator | Indiana |
| 75 | Roberta B Skinner | 64 | Wife | — | Indiana |
| 76 | Robert Skinner | 21 | Son | Salesman | Indiana |
| 77 | Bill Martin | 43 | Head | Farm Operator | Illinois |
| 78 | Clara Martin THIS PERSON | 39 | Wife | — | Illinois |
| 79 | Maxine Martin | 15 | Daughter | — | Illinois |
| 80 | Carl Martin | 11 | 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)