MM
Mildred Martin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Mildred Martin across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 11-person household.
Age 15
b. ~1925
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Martin |
| Given Name | Mildred |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | CHICAGO CITY |
| 1935 Residence (County) | COOK |
| Additional Details | |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | S 7 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1925 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mildred | Age | Birth yr |
|---|---|---|---|---|
| Mildred Martin | Daughter | — | 15 | ~1925 |
| Catherine Martin | Daughter | — | 19 | ~1921 |
| Grace Martin | Daughter | — | 9 | ~1931 |
| Henrietta Martin | Daughter | — | 11 | ~1929 |
| Irene Martin | Daughter | — | 5 | ~1935 |
| Marshall Martin | Head | — | 41 | ~1899 |
| Irene Harris | Other | — | 55 | ~1885 |
| Frank Martin | Son | — | 7 | ~1933 |
| Bernard Martin | Son | — | 2 | ~1938 |
| Marshall Martin | Son | — | 13 | ~1927 |
| Henrietta Martin | Spouse | — | 40 | ~1900 |
Census Appearances
1930
Cook, Illinois
Daughter, age 5
Cook, Illinois · implied b. ~1925 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Mildred |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Arkansas |
| Mother's Birthplace | Arkansas |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 15
Cook-County, Illinois · implied b. ~1925 — 11 household members
| Surname | Martin |
| Given Name | Mildred |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | CHICAGO CITY |
| 1935 Residence (County) | COOK |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | S 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 Mildred Martin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mildred Martin
Daughter · 1940 · age 15 · b. ~1925 · Illinois
★ You are viewing this record
Sibling
Henrietta Martin
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Martin
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernard Martin
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frank Martin
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Grace Martin
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marshall Martin
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Irene Martin
Sibling · 1940 · age 5
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 — Cook-County, Illinois
Open full size
1940 US Federal Census — Cook-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00977-00614)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lucile Bonner | 8 | Daughter | — | Tennessee |
| 42 | William Bonner | 7 | Son | — | Tennessee |
| 43 | Thomas Bonner | 5 | Son | — | Tennessee |
| 44 | Irene Wisamer | 32 | Head | — | Illinois |
| 45 | Aella Mosley | 34 | Head | — | Georgia |
| 46 | Walter Banks | 46 | Head | — | Mississippi |
| 47 | Ophelia Banks | 46 | Wife | — | Oklahoma |
| 48 | Ernestine Banks | 11 | Daughter | — | Illinois |
| 49 | Luella Banks | 9 | Daughter | — | Illinois |
| 50 | Althie Banks | 6 | Daughter | — | Illinois |
| 51 | Annethia Banks | 5 | Daughter | — | Illinois |
| 52 | Carlene Banks | 3 | Daughter | — | Illinois |
| 53 | Cleo Jenkins | 20 | Daughter | — | Oklahoma |
| 54 | Jones Brewer | 37 | Head | Janitor | Mississippi |
| 55 | Emma Brewer | 35 | Wife | — | Mississippi |
| 56 | Julia Brewer | 17 | Daughter | New Worker | Mississippi |
| 57 | Jones Brewer | 15 | Son | — | Illinois |
| 58 | Willis Brewer | 12 | Son | — | Illinois |
| 59 | Ella Brewer | 10 | Daughter | — | Illinois |
| 60 | George Brewer | 8 | Son | — | Illinois |
| 61 | Lillian Brewer | 5 | Daughter | — | Illinois |
| 62 | Dora Brewer | 3 | Daughter | — | Illinois |
| 63 | Joseph Brewer | 1 | Son | — | Illinois |
| 64 | Marshall Martin | 41 | Head | Butcher | Louisiana |
| 65 | Henrietta Martin | 40 | Wife | — | Arkansas |
| 66 | Catherine Martin | 19 | Daughter | — | Arkansas |
| 67 | Mildred Martin THIS PERSON | 15 | Daughter | — | Illinois |
| 68 | Marshall Martin | 13 | Son | — | Illinois |
| 69 | Henrietta Martin | 11 | Daughter | — | Illinois |
| 70 | Grace Martin | 9 | Daughter | — | Illinois |
| 71 | Frank Martin | 7 | Son | — | Illinois |
| 72 | Irene Martin | 5 | Daughter | — | Illinois |
| 73 | Bernard Martin | 2 | Son | — | Illinois |
| 74 | Irene Harris | 55 | Mother | Maid | Arkansas |
| 75 | Blanche Plato | 44 | Head | — | Indiana |
| 76 | Sylvia Plato | 20 | Daughter | — | Indiana |
| 77 | Mary Plato | 16 | Daughter | — | Indiana |
| 78 | Florence Plato | 11 | Daughter | — | Illinois |
| 79 | Kenith Plato | 15 | Son | — | Illinois |
| 80 | Joseph Walton | 34 | Head | Packer | Arkansas |
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)