CM
Catherine Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Catherine Martin across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Mary & Katherine — first a daughter (b.~1918), then head of a 4-person household.
Age 22
b. ~1918
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Martin |
| Given Name | Catherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Clerk |
| Industry | County |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 1000 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Clerk |
| Township / Ward | Chicago |
| Est. Birth Year | ~1918 |
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 Catherine | Age | Birth yr |
|---|---|---|---|---|
| Catherine Martin | Daughter | — | 22 | ~1918 |
| Francis Martin | Head | — | 45 | ~1895 |
| Marie Martin | Daughter | — | 10 | ~1930 |
| Raymond Martin | Son | — | 17 | ~1923 |
Census Appearances
1920
Cook, Illinois
Daughter, age
Cook, Illinois · implied b. ~1920 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Catherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Daughter, age 11
Cook, Illinois · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Catherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Home Owned/Rented | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 22
Cook-County, Illinois · implied b. ~1918 — 4 household members
| Surname | Martin |
| Given Name | Catherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Occupation | Clerk |
| Industry | County |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 1000 |
| Highest Grade | H 4 |
| 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 Catherine Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Mary Martin (~0.92 confidence) and mother Katherine Martin (~0.92 confidence) and father Francis Martin (~0.92 confidence) and father James Martin (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Mary Martin
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Katherine Martin
b. ~1893
Source mother
● Household
· direct · ~0.92
Father
Francis Martin
b. ~1895
Source father
● Household
· direct · ~0.92
Father
James Martin
b. ~1896
Source father
● Household
· direct · ~0.92
This person
Anchor record
Catherine Martin
Daughter · 1940 · age 22 · b. ~1918 · Illinois
★ You are viewing this record
Sibling
Raymond Martin
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marie Martin
Sibling · 1940 · age 10
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-t0627-00951-00609)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles Raffl | 41 | Head | Painter | Illinois |
| 2 | Marie Raffl | 42 | Wife | — | Germany |
| 3 | Richard Raffl | 10 | Son | — | Illinois |
| 4 | George Raffl | 9 | Son | — | Illinois |
| 5 | Arnold Raffl | 5 | Son | — | Illinois |
| 6 | Gustav France | 75 | Head | — | Germany |
| 7 | Hermine France | 68 | Wife | — | Germany |
| 8 | Martin Colman | 35 | Head | Printer | Illinois |
| 9 | Julia Colman | 35 | Wife | — | Illinois |
| 10 | Shirley Colman | 10 | Daughter | — | Illinois |
| 11 | Ethel Colman | 3 | Daughter | — | Illinois |
| 12 | John A Kolar | 53 | Head | Secy-Treas | Illinois |
| 13 | Edith E Kolar | 52 | Wife | — | Illinois |
| 14 | John R Kolar | 21 | Son | Draughtsman | Illinois |
| 15 | Warren Kolar | 18 | Son | 0 | Illinois |
| 16 | Mary Schmidt | 45 | Head | House Keeping | Illinois |
| 17 | Margaret Schmidt | 21 | Daughter | Clerk | Illinois |
| 18 | Delmar Schmidt | 14 | Daughter | 0 | Illinois |
| 19 | Francis Martin | 45 | Head | Clerk | Illinois |
| 20 | Catherine Martin THIS PERSON | 22 | Daughter | Clerk | Illinois |
| 21 | Raymond Martin | 17 | Son | 0 | Illinois |
| 22 | Marie Martin | 10 | Daughter | — | Illinois |
| 23 | Frank Koloty | 41 | Head | Chauffeur | Illinois |
| 24 | Victoria Koloty | 39 | Wife | — | Illinois |
| 25 | Clare Koloty | 9 | Daughter | — | Illinois |
| 26 | Joyce Koloty | 7 | Daughter | — | Illinois |
| 27 | Kathryn Koloty | 4 | Daughter | — | Illinois |
| 28 | Frank Nenubauer | 41 | Head | Salesman | Poland |
| 29 | Constance Nenubauer | 41 | Wife | — | Poland |
| 30 | Constance Nenubauer | 18 | Daughter | — | Illinois |
| 31 | Charles Nenubauer | 16 | Son | — | Illinois |
| 32 | Clementine Nenubauer | 8 | Daughter | — | Illinois |
| 33 | Joseph Lizerdzie | 46 | Head | Laborer | Poland |
| 34 | Josephine Lizerdzie | 38 | Wife | Supervisor | Illinois |
| 35 | Alice Lizerdzie | 16 | Daughter | 0 | Illinois |
| 36 | Delores Lizerdzie | 15 | Daughter | 0 | Illinois |
| 37 | Kathleen Sullivan | 49 | Head | General Worker | Scotland |
| 38 | Alice Sullivan | 21 | Daughter | Clerk | Illinois |
| 39 | Richard Sullivan | 19 | Son | — | Illinois |
| 40 | Daniel Sullivan | 11 | Son | — | Illinois |
Pedigree Summary
Catherine + 2 siblings
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)