MM
Marion Martin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Marion Martin across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1924), then head of a 9-person household.
Age 16
b. ~1924
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Martin |
| Given Name | Marion E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Maywood Village |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Class of Worker | O |
| Hours Worked | 6 |
| Income (1939) | 70 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Maywood Village |
| Est. Birth Year | ~1924 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Marion | Age | Birth yr |
|---|---|---|---|---|
| Margaret Martin | Daughter | — | 11 | ~1929 |
| Marilyn Martin | Daughter | — | 5 | ~1935 |
| Irene Martin | Spouse | — | 37 | ~1903 |
| Marion Martin | Daughter | — | 16 | ~1924 |
| Malger Martin | Head | — | 45 | ~1895 |
| Helen Martin | Daughter | — | 18 | ~1922 |
| William Martin | Son | — | 15 | ~1925 |
| Jean Martin | Daughter | — | 16 | ~1924 |
| Robert Martin | Son | — | 19 | ~1921 |
Census Appearances
1930
Cook, Illinois
Daughter, age 5
Cook, Illinois · implied b. ~1925 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Marion |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 16
Cook-County, Illinois · implied b. ~1924 — 9 household members
| Surname | Martin |
| Given Name | Marion E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Maywood Village |
| 1935 Residence (County) | Cook |
| Class of Worker | O |
| Hours Worked | 6 |
| Income (1939) | 70 |
| 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 Marion Martin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Marion Martin
Daughter · 1940 · age 16 · b. ~1924 · Illinois
★ You are viewing this record
Sibling
Jean Martin
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Martin
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Martin
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Martin
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marilyn Martin
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Martin
Sibling · 1940 · age 11
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-t0627-00787-00549)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Reggi John Hegji | 16 | Son | — | Illinois |
| 42 | Ronald Hegji | 11 | Son | — | Indiana |
| 43 | Georgene Hegji | 9 | Daughter | — | Illinois |
| 44 | Malger H Martin | 45 | Head | — | New York |
| 45 | Robert E Martin | 19 | Son | — | Illinois |
| 46 | Helen E Martin | 18 | Daughter | Typist | Illinois |
| 47 | Jean M Martin | 16 | Daughter | — | Illinois |
| 48 | Marion E Martin THIS PERSON | 16 | Daughter | — | Illinois |
| 49 | William Martin | 15 | Son | — | Illinois |
| 50 | Margaret Ann Martin | 11 | Daughter | — | Illinois |
| 51 | Irene Martin | 37 | Wife | — | Illinois |
| 52 | Marilyn Martin | 5 | Daughter | — | Illinois |
| 53 | Arthur Werner | 43 | Head | Commercial Artist | Illinois |
| 54 | Edith W Werner | 35 | Wife | — | Germany |
| 55 | John Werner | 6 | Son | — | Illinois |
| 56 | Julie Werner | 3 | Daughter | — | Illinois |
| 57 | Einvar Stonequist | 52 | Head | Iron Tester | Sweden |
| 58 | Anna Stonequist | 49 | Wife | — | Sweden |
| 59 | Arthur Smith | 43 | Head | Superintendent | Illinois |
| 60 | Ethel Smith | 43 | Wife | Teacher | Illinois |
| 61 | Audrey Smith | 15 | Daughter | — | Illinois |
| 62 | William Rohl | 57 | Head | Production Man | Germany |
| 63 | Rosemary Rohl | 59 | Wife | — | Illinois |
| 64 | Lawrence B Kimball | 54 | Head | Mechanic | Illinois |
| 65 | Ruth M Kimball | 50 | Wife | — | Iowa |
| 66 | Cathie Mary Kimball | 13 | Daughter | — | Iowa |
| 67 | Harold E Vance | 32 | Head | Welder | Missouri |
| 68 | Jeannette Vance | 35 | Wife | — | Virginia |
| 69 | Arthur S Briden | 43 | Head | Welder | Illinois |
| 70 | Hazel Briden | 46 | Wife | — | Illinois |
| 71 | Bernice Briden | 20 | Daughter | Ticket Agent | Illinois |
| 72 | Alberta Briden | 10 | Daughter | — | Illinois |
| 73 | Frank Watson | 71 | Father | — | Alabama |
| 74 | Charles H French | 43 | Head | Superintendent | Illinois |
| 75 | Lorraine French | 39 | Wife | — | Wisconsin |
| 76 | Charles French | 25 | Son | — | Illinois |
| 77 | Patricia French | 15 | Daughter | — | Illinois |
| 78 | Joan French | 10 | Daughter | — | Illinois |
| 79 | John French | 5 | Son | — | Illinois |
| 80 | Margaret Ann French | 2 | Daughter | — | 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)