DM
Doris Martin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Doris Martin across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 13-person household.
Age 12
b. ~1928
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Martin |
| Given Name | Doris |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Highest Grade | No 2 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago |
| Est. Birth Year | ~1928 |
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.
13 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Doris | Age | Birth yr |
|---|---|---|---|---|
| Geneva Martin | Daughter | — | 5 | ~1935 |
| Henrietta Martin | Daughter | — | 8 | ~1932 |
| Doris Martin | Daughter | — | 12 | ~1928 |
| Drucilla Martin | Daughter | — | 17 | ~1923 |
| Ruth Martin | Daughter | — | 18 | ~1922 |
| James Martin | Head | — | 31 | ~1909 |
| Charles Martin | Son | — | 2 | ~1938 |
| Louis Martin | Son | — | 13 | ~1927 |
| Napoleon Martin | Son | — | 3 | ~1937 |
| Mayme Martin | Spouse | — | 39 | ~1901 |
| Thelma Martin | Daughter | — | 16 | ~1924 |
| Cleo Martin | Daughter | — | 1 | ~1939 |
| Robert Martin | Son | — | 9 | ~1931 |
Census Appearances
1930
Cook, Illinois
Daughter, age 1
Cook, Illinois · implied b. ~1929 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Doris |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 12
Cook-County, Illinois · implied b. ~1928 — 13 household members
| Surname | Martin |
| Given Name | Doris |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Highest Grade | No 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 Doris Martin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Doris Martin
Daughter · 1940 · age 12 · b. ~1928 · Illinois
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Sibling
Ruth Martin
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Geneva Martin
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Martin
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thelma Martin
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Napoleon Martin
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Louis Martin
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Cleo Martin
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Martin
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Drucilla Martin
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Henrietta Martin
Sibling · 1940 · age 8
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-t0627-00922-00492)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Emmett Smith | 14 | Son | — | Mississippi |
| 42 | George Bowman | 51 | Head | — | Mississippi |
| 43 | Myrtle Bowman | 27 | Wife | Maid | Mississippi |
| 44 | Herbert Hill | 36 | Head | Laborer | Mississippi |
| 45 | Cora Hill | 42 | Wife | — | Mississippi |
| 46 | James Martin | 31 | Head | — | South Carolina |
| 47 | Mayme Martin | 39 | Wife | — | South Carolina |
| 48 | Ruth Martin | 18 | Daughter | — | South Carolina |
| 49 | Drucilla Martin | 17 | Daughter | — | South Carolina |
| 50 | Thelma Martin | 16 | Daughter | — | Illinois |
| 51 | Louis Martin | 13 | Son | — | Illinois |
| 52 | Doris Martin THIS PERSON | 12 | Daughter | — | Illinois |
| 53 | Robert Martin | 9 | Son | — | Illinois |
| 54 | Henrietta Martin | 8 | Daughter | — | Illinois |
| 55 | Geneva Martin | 5 | Daughter | — | Illinois |
| 56 | Napoleon Martin | 3 | Son | — | Illinois |
| 57 | Charles Martin | 2 | Son | — | Illinois |
| 58 | Cleo Martin | 1 | Daughter | — | Illinois |
| 59 | William Green | 43 | Head | — | Louisiana |
| 60 | Hattie Green | 34 | Wife | — | Mississippi |
| 61 | William Green | 14 | Son | — | Illinois |
| 62 | Claude Green | 10 | Son | — | Illinois |
| 63 | Addie Green | 8 | Daughter | — | Illinois |
| 64 | Dorothy Green | 6 | Daughter | — | Illinois |
| 65 | Joseph Green | 4 | Son | — | Illinois |
| 66 | Matilda Green | 1 | Daughter | — | Illinois |
| 67 | George Smith | 67 | Head | — | Georgia |
| 68 | James Brown | 30 | Head | — | Georgia |
| 69 | Robert Brown | 20 | Son | — | Georgia |
| 70 | Mable Brown | 22 | Daughter | — | Georgia |
| 71 | Josie Stanback | 43 | Lodger | — | Mississippi |
| 72 | Clancy Stanback | 66 | Lodger | — | Mississippi |
| 73 | Harrison Smith | 65 | Head | — | Arkansas |
| 74 | Jane Smith | 57 | Wife | — | Arkansas |
| 75 | Alatha Smith | 25 | Daughter | — | Arkansas |
| 76 | James Smith | 22 | Son | Laborer | Arkansas |
| 77 | Elsie B. Smith | 2 | Daughter | — | Arkansas |
| 78 | Louise Beverly | 62 | Head | — | Mississippi |
| 79 | Louise Gary | 34 | Lodger | — | Missouri |
| 80 | Richard Jr. Gary | 7 | Lodger | — | Illinois |
Related Census Records
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)