MM
Mabel Martin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Champaign-County, Illinois
Our Model Tree links this Mabel Martin across the 1930 and 1940 US Censuses in Champaign-County, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1923), then head of a 8-person household.
Age 17
b. ~1923
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Champaign-County, Illinois |
| Surname | Martin |
| Given Name | Mabel |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | South Homer Twp |
| 1935 Residence (County) | Champaign |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | South Homer Twp |
| Est. Birth Year | ~1923 |
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 Mabel | Age | Birth yr |
|---|---|---|---|---|
| Carl Martin | Son | — | 4 | ~1936 |
| Raymond Martin | Son | — | 11 | ~1929 |
| Gertrude Martin | Spouse | — | 34 | ~1906 |
| Everett Martin | Son | — | 2 | ~1938 |
| Dorothy Martin | Daughter | — | 18 | ~1922 |
| Mabel Martin | Daughter | — | 17 | ~1923 |
| William Martin | Head | — | 41 | ~1899 |
| James Martin | Son | — | 13 | ~1927 |
Census Appearances
1930
Champaign, Illinois
Daughter, age 7
Champaign, Illinois · implied b. ~1923 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Mable |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Champaign-County, Illinois
Daughter, age 17
Champaign-County, Illinois · implied b. ~1923 — 8 household members
| Surname | Martin |
| Given Name | Mabel |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | South Homer Twp |
| 1935 Residence (County) | Champaign |
| Income (1939) | 0 |
| Highest Grade | H-2 |
| 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 Mabel Martin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mabel Martin
Daughter · 1940 · age 17 · b. ~1923 · Illinois
★ You are viewing this record
Sibling
James Martin
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Raymond Martin
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Everett Martin
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carl Martin
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Martin
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Champaign-County, Illinois
Open full size
1940 US Federal Census — Champaign-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00766-00884)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Anna Taylor | 47 | Sister | — | Illinois |
| 2 | Jennie Taylor | 62 | Sister | — | Illinois |
| 3 | Oscar P. Henderson | 67 | Head | Farmer | Illinois |
| 4 | Emma Henderson | 62 | Wife | — | Illinois |
| 5 | Alma Henderson | 58 | Sister | — | Illinois |
| 6 | Dave Hunter | 34 | Head | Laborer | Illinois |
| 7 | Agnes Hunter | 31 | Wife | — | Indiana |
| 8 | Helen Hunter | 10 | Daughter | — | Illinois |
| 9 | Clarence Hunter | 5 | Son | — | Illinois |
| 10 | Harold Hunter | 5 | Son | — | Illinois |
| 11 | Anna Hunter | 5 | Daughter | — | Illinois |
| 12 | Lyle Hunter | 4 | Son | — | Illinois |
| 13 | Dale Hunter | 1 | Son | — | Illinois |
| 14 | Ralph Baird | 45 | Head | Farmer | Illinois |
| 15 | Helen M. Baird | 47 | Wife | Laborer | Illinois |
| 16 | John Baird | 20 | Son | Laborer | Illinois |
| 17 | Donald Baird | 11 | Son | — | Illinois |
| 18 | Ronald Baird | 11 | Son | — | Illinois |
| 19 | William Martin | 41 | Head | Laborer | Illinois |
| 20 | Gertrude Martin | 34 | Wife | — | Illinois |
| 21 | Dorothy Martin | 18 | Daughter | — | Illinois |
| 22 | Mabel Martin THIS PERSON | 17 | Daughter | — | Illinois |
| 23 | James Martin | 13 | Son | — | Illinois |
| 24 | Raymond Martin | 11 | Son | — | Illinois |
| 25 | Carl Martin | 4 | Son | — | Illinois |
| 26 | Everett Martin | 2 | Son | — | Illinois |
| 27 | Blaine E. Sylvester | 56 | Head | Farmer | Illinois |
| 28 | Bessie Sylvester | 46 | Wife | — | Missouri |
| 29 | Vernice Sylvester | 21 | Daughter | Teacher | Illinois |
| 30 | George Sylvester | 18 | Son | Laborer | Illinois |
| 31 | Horace G. Norton | 83 | Uncle | Retired | Illinois |
| 32 | Bert Roberts | 74 | Head | Farmer | Illinois |
| 33 | Nellie Roberts | 47 | Wife | — | Kansas |
| 34 | Paul J. Roberts | 12 | Son | — | Illinois |
| 35 | Charles Melton | 36 | Head | Laborer | Illinois |
| 36 | Della Melton | 29 | Wife | Servant | Illinois |
| 37 | Mary Hopkins | 45 | Head | — | Illinois |
| 38 | Hortense Hopkins | 51 | Sister | — | Illinois |
| 39 | John B. Johnson | 53 | Head | Laborer | Illinois |
| 40 | Ida O. Johnson | 50 | Wife | — | Kentucky |
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)