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Alfred Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Alfred Martin across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Alfred & Elizabeth — first a head (b.~1914), then head of a 4-person household.
Age 26
b. ~1914
Male
Head
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Martin |
| Given Name | Alfred J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Laborer |
| Industry | Department store |
| Class of Worker | PW |
| Hours Worked | 3 |
| Income (1939) | 1385 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Laborer |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1914 |
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 Alfred | Age | Birth yr |
|---|---|---|---|---|
| Elizabeth Martin | Other | — | 53 | ~1887 |
| Betty Martin | Daughter | — | 20 | ~1920 |
| Alfred Martin | Head | — | 26 | ~1914 |
| George Martin | Son | — | 12 | ~1928 |
Census Appearances
1920
Cook, Illinois
Son, age 6
Cook, Illinois · implied b. ~1914 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Alfred |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 17
Cook, Illinois · implied b. ~1913 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Alfred Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Illinois |
| Age at First Marriage | 17 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Clerk |
| Industry | Printing Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Head, age 26
Cook-County, Illinois · implied b. ~1914 — 4 household members
| Surname | Martin |
| Given Name | Alfred J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | Laborer |
| Industry | Department store |
| Class of Worker | PW |
| Hours Worked | 3 |
| Income (1939) | 1385 |
| Highest Grade | Hs 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 Alfred Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Alfred Martin (~0.92 confidence) and mother Elizabeth Martin (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Alfred Martin
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Elizabeth Martin
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Alfred Martin
Head · 1940 · age 26 · b. ~1914 · Illinois
★ You are viewing this record
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-t0627-00957-00781)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William J. Slagnum | 11 | Son | — | Illinois |
| 2 | James J. Slagnum | 8 | Son | — | Illinois |
| 3 | Mabel Oosterbeek | 45 | Head | School Teacher | Illinois |
| 4 | Eva Leavitt | 72 | Head | — | Germany |
| 5 | Harry Leavitt | 42 | Son | Clerk In Office | Colorado |
| 6 | Katherine Henrae | 42 | Head | Saleswoman - Dress | Wisconsin |
| 7 | Beryle Henrae | 22 | Daughter | Saleswoman - Dress | Illinois |
| 8 | John A. Busch | 57 | Head | Police Officer | Illinois |
| 9 | Genevieve Busch | 44 | Wife | — | Illinois |
| 10 | John H. Jr. Busch | 23 | Son | — | Illinois |
| 11 | Alfred J. Martin THIS PERSON | 26 | Head | Laborer | Illinois |
| 12 | Elizabeth Martin | 53 | Mother | — | Illinois |
| 13 | Betty Martin | 20 | Daughter | Clerical Work | Illinois |
| 14 | George Martin | 12 | Son | — | Illinois |
| 15 | Nick Hondlinger | 58 | Head | Chef | Wisconsin |
| 16 | Anna Hondlinger | 60 | Wife | — | Indiana |
| 17 | James Johnson | 45 | Head | Sub Postal Clerk | Illinois |
| 18 | Esther Johnson | 41 | Wife | — | Illinois |
| 19 | Lucretia Johnson | 15 | Daughter | — | Illinois |
| 20 | Paul Johnson | 11 | Son | — | Illinois |
| 21 | Anna Shields | 63 | Head | — | Ireland |
| 22 | Bernice Shields | 36 | Daughter | Dressmaker | Illinois |
| 23 | Jacob Novil | 49 | Head | Tailor | Russia |
| 24 | Reba Novil | 47 | Wife | — | Russia |
| 25 | Max Novil | 27 | Son | Clerk | Illinois |
| 26 | Maurice Chiz | 26 | Lodger | Representative | Illinois |
| 27 | Rose Chiz | 22 | Lodger | — | Illinois |
| 28 | Nancy Ann Chiz | 2 | Lodger | — | Illinois |
| 29 | Lester Strombeck | 36 | Head | Underwriter | Illinois |
| 30 | Margaret Strombeck | 36 | Wife | — | Penn. |
| 31 | John Strombeck | 11 | Son | — | Illinois |
| 32 | Bruce Strombeck | 5 | Son | — | Illinois |
| 33 | John W. Strombeck | 66 | Head | — | Illinois |
| 34 | Maria Strombeck | 61 | Wife | — | Illinois |
| 35 | Edward Herlihy | 40 | Head | Laborer | Ireland |
| 36 | Nora Herlihy | 39 | Wife | — | Ireland |
| 37 | Mary Catherine Herlihy | 9 | Daughter | — | Illinois |
| 38 | John Joseph Herlihy | 7 | Son | — | Illinois |
| 39 | Barbara Anne Herlihy | 4 | Daughter | — | Illinois |
| 40 | Daniel Reidy | 65 | Head | Butcher | Illinois |
Pedigree Summary
Alfred
Gen 1 · 2 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)