MW
Michael Walsh — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Michael Walsh across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Michael & John — first a son (b.~1915), then head of a 6-person household.
Age 25
b. ~1915
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Walsh |
| Given Name | Michael |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Clerk |
| Industry | Telephone Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1150 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Clerk |
| Township / Ward | Chicago |
| Est. Birth Year | ~1915 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Michael | Age | Birth yr |
|---|---|---|---|---|
| Bridget Walsh | Head | — | 58 | ~1882 |
| William Walsh | Son | — | 22 | ~1918 |
| Michael Walsh | Son | — | 25 | ~1915 |
| Thomas Walsh | Son | — | 29 | ~1911 |
| John Walsh | Son | — | 27 | ~1913 |
| Mary Walsh | Daughter | — | 28 | ~1912 |
Census Appearances
1920
Cook, Illinois
Son, age 4
Cook, Illinois · implied b. ~1916 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Walsh |
| Given Name | Michael |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| 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
Son, age 14
Cook, Illinois · implied b. ~1916 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Walsh |
| Given Name | Michael |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 25
Cook-County, Illinois · implied b. ~1915 — 6 household members
| Surname | Walsh |
| Given Name | Michael |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Occupation | Clerk |
| Industry | Telephone Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1150 |
| Highest Grade | Hs 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 Michael Walsh across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Michael Walsh (~0.83 confidence) and father John Walsh (~0.83 confidence) and mother Mary Walsh (~0.83 confidence) and father David Walsh (~0.92 confidence) and mother Maggie Walsh (~0.83 confidence) and mother Bridget Walsh (~0.92 confidence) and mother Mamie Walsh (~0.92 confidence) and father Michael Walsh (~0.92 confidence). The pedigree spans 2 generations with 8 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.88
Father
Michael Walsh
b. ~1856
Source father>father
● Household
· direct · ~0.83
Father
John Walsh
b. ~1862
Source father>father
● Household
· direct · ~0.83
Mother
Mary Walsh
b. ~1865
Source father>mother
● Household
· direct · ~0.83
Father
David Walsh
b. ~1867
Source father
● Household
· direct · ~0.92
Mother
Maggie Walsh
b. ~1868
Source father>mother
● Household
· direct · ~0.83
Mother
Bridget Walsh
b. ~1882
Source mother
● Household
· direct · ~0.92
Mother
Mamie Walsh
b. ~1893
Source mother
● Household
· direct · ~0.92
Father
Michael Walsh
b. ~1893
Source father
● Household
· direct · ~0.92
This person
Anchor record
Michael Walsh
Son · 1940 · age 25 · b. ~1915 · Illinois
★ You are viewing this record
Sibling
John Walsh
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Walsh
Sibling · 1940 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Walsh
Sibling · 1940 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Walsh
Sibling · 1940 · age 22
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-t0627-00954-00261)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Bert Petka | 52 | Head | Mover + Express | Illinois |
| 2 | Clara Petka | 42 | Wife | — | Illinois |
| 3 | Bridget Walsh | 58 | Head | — | Irish Free State |
| 4 | Thomas Walsh | 29 | Son | Tool Clerk | Illinois |
| 5 | Mary Walsh | 28 | Daughter | Typist | Illinois |
| 6 | John Walsh | 27 | Son | Clerk | Illinois |
| 7 | Michael Walsh THIS PERSON | 25 | Son | Clerk | Illinois |
| 8 | William Walsh | 22 | Son | Clerk | Illinois |
| 9 | John Callahan | 35 | Head | Cable Helper | Illinois |
| 10 | Agnes Callahan | 34 | Wife | — | Illinois |
| 11 | Cornelius Callahan | 7 | Son | — | Illinois |
| 12 | Thomas Callahan | 6 | Son | — | Illinois |
| 13 | John Callahan | 5 | Son | — | Illinois |
| 14 | Arthur Conlon | 36 | Head | Yard Master | Illinois |
| 15 | Cathryn Conlon | 37 | Wife | — | Illinois |
| 16 | Joan Conlon | 19 | Daughter | Typist | Illinois |
| 17 | Arthur Conlon | 6 | Son | — | Illinois |
| 18 | Joseph Audia | 54 | Head | Refinishing Of Furniture | Italy |
| 19 | Mary A Audia | 53 | Wife | — | Illinois |
| 20 | Bernadine Audia | 28 | Daughter | — | Illinois |
| 21 | Charles Nolan | 24 | Head | Boilermaker | Illinois |
| 22 | Elizabeth Nolan | 22 | Wife | Telephone Operator | Illinois |
| 23 | Henry Mcelroy | 38 | Head | Truck Driver | Illinois |
| 24 | Mary Mcelroy | 37 | Wife | — | Illinois |
| 25 | Henry Mcelroy | 19 | Son | New Worker | Illinois |
| 26 | Howard Mcelroy | 18 | Son | New Worker | Illinois |
| 27 | June Mcelroy | 16 | Daughter | — | Illinois |
| 28 | Ellen Macklin | 78 | Mother-in-law | — | Illinois |
| 29 | Gertrude Sudbury | 43 | Aunt | — | Illinois |
| 30 | Thomas Tully | 60 | Head | — | Irish Free State |
| 31 | Mary Tully | 63 | Wife | — | Irish Free State |
| 32 | Leo Tully | 24 | Son | Candy Maker | Illinois |
| 33 | Nora Gaynor | 29 | Daughter | Telephone Operator | Illinois |
| 34 | Patricia Gaynor | 5 | Granddaughter | — | Illinois |
| 35 | Herman Dinell | 29 | Head | Printer | Illinois |
| 36 | Marie Dinell | 29 | Wife | — | Illinois |
| 37 | Herman Dinell | 6 | Son | — | Illinois |
| 38 | Mary Ann Dinell | 3 | Daughter | — | Illinois |
| 39 | Betty Dinell | 2 | Daughter | — | Illinois |
| 40 | Donald Dinell | 0 | Son | — | Illinois |
Related Census Records
Pedigree Summary
Michael + 4 siblings
Gen 1 · 4 parents
~0.92
Gen 2 · 4 grandparents
~0.83
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)