JP
John Pollock — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this John Pollock across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1869), then head of a 4-person household.
Age 71
b. ~1869
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Pollock |
| Given Name | John M. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 71 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Lawyer |
| Industry | Private Practice |
| Class of Worker | OA |
| Hours Worked | 25 |
| Income (1939) | 2693 |
| Highest Grade | No |
| 1935 Residence | Same House |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Lawyer |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1869 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Edith Pollock | Daughter | — | 32 | ~1908 |
| Edith Pollock | Spouse | — | 69 | ~1871 |
| Katsy Herzog | Other | — | 44 | ~1896 |
| John Pollock | Head | — | 71 | ~1869 |
Census Appearances
1920
Cook, Illinois
Head, age 49
Cook, Illinois · implied b. ~1871 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Pollock |
| Given Name | John M. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Lawyer |
| Industry | General Practice |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Head, age 62
Cook, Illinois · implied b. ~1868 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Pollock |
| Given Name | John M. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 33 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Lawyer |
| Industry | Law Office |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 125 |
| Radio Set | R |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Head, age 71
Cook-County, Illinois · implied b. ~1869 — 4 household members
| Surname | Pollock |
| Given Name | John M. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 71 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | Lawyer |
| Industry | Private Practice |
| Class of Worker | OA |
| Hours Worked | 25 |
| Income (1939) | 2693 |
| Highest Grade | No |
| 1935 Residence | Same House |
| 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 John Pollock across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Pollock
Head · 1940 · age 71 · b. ~1869 · 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-t0627-01000-00499)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Loretta Eckel | 48 | Mother | Housewife | Illinois |
| 42 | Eugene L. Milligan | 38 | Head | Officer | Illinois |
| 43 | Rose M. Milligan | 37 | Wife | — | Illinois |
| 44 | Mary P. Milligan | 7 | Daughter | — | Illinois |
| 45 | Lucy Lawrence | 45 | Head | Tailoress | England |
| 46 | Winifred Lawrence | 24 | Daughter | Tailoress | Illinois |
| 47 | Gertrude A. Lawrence | 7 | Daughter | — | Illinois |
| 48 | Horst A. Dries | 50 | Head | Mining Engineer | Germany |
| 49 | Anthony Dries | 49 | Wife | — | Germany |
| 50 | James A. Clear | 29 | Head | School Teacher | Illinois |
| 51 | Julia A. Clear | 49 | Mother | — | Ireland |
| 52 | Clotilde Meincke | 79 | Head | — | Illinois |
| 53 | Hattie H. Bates | 52 | Daughter | — | Illinois |
| 54 | Helen Mae Bates | 15 | Grandchild | — | Illinois |
| 55 | Stanley A. Buchholz | 28 | Head | Casualty Underwriter | Illinois |
| 56 | Jane C. Buchholz | 26 | Wife | — | Illinois |
| 57 | Ruth B. Buchholz | 5 | Daughter | — | Illinois |
| 58 | Ida C. Kainer | 75 | Head | — | Illinois |
| 59 | Joseph J. Mends | 32 | Head | Dentist | New York |
| 60 | Louis Stetchell | 39 | Head | Butcher | Czecho-Slovakia |
| 61 | Isabele Stetchell | 29 | Wife | — | Indiana |
| 62 | Anna Olsen | 56 | Head | — | Norway |
| 63 | Donald Olsen | 33 | Son | Manager | Wisconsin |
| 64 | John M. Pollock THIS PERSON | 71 | Head | Lawyer | Illinois |
| 65 | Edith C. Pollock | 69 | Wife | — | Illinois |
| 66 | Edith E. Pollock | 32 | Daughter | High School Teacher | Illinois |
| 67 | Katsy M. Herzog | 44 | Housekeeper | Housekeeper | Russia |
| 68 | James J. Brown | 37 | Head | Manager | Illinois |
| 69 | Mabel L. Brown | 35 | Wife | — | Illinois |
| 70 | James J. Jr. Brown | 8 | Son | — | Illinois |
| 71 | Marlene A. Brown | 4 | Daughter | — | Illinois |
| 72 | John C. Wensley | 44 | Head | House Painter | Illinois |
| 73 | Ellen N. Wensley | 33 | Wife | — | Massachusetts |
| 74 | Margaret J. Wensley | 2 | Daughter | — | Illinois |
| 75 | Ingaborg A. Stonich | 39 | Roomer | High School Teacher | Norway |
| 76 | Raymond H. Bailly | 40 | Head | Chauffeur | Illinois |
| 77 | Maryann D. Bailly | 31 | Wife | — | Wisconsin |
| 78 | Eugene C. Bailly | 11 | Son | — | Illinois |
| 79 | Raymond H. Jr. Bailly | 5 | Son | — | Illinois |
| 80 | Maryann J. Bailly | 4 | Daughter | — | Illinois |
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)