JC
James Collins — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this James Collins across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 12-person household.
Age 15
b. ~1925
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Collins |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Oak Park |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Industry | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Oak Park |
| Est. Birth Year | ~1925 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Margaret Collins | Daughter | — | 14 | ~1926 |
| Mary Collins | Daughter | — | 11 | ~1929 |
| Patricia Collins | Daughter | — | 7 | ~1933 |
| Lawrence Collins | Head | — | 50 | ~1890 |
| Edward Collins | Son | — | 17 | ~1923 |
| John Collins | Son | — | 10 | ~1930 |
| James Collins | Son | — | 15 | ~1925 |
| Robert Collins | Son | — | 19 | ~1921 |
| Raymond Collins | Son | — | 19 | ~1921 |
| Charles Collins | Son | — | 21 | ~1919 |
| Lawrence Collins | Son | — | 23 | ~1917 |
| Margaret Collins | Spouse | — | 49 | ~1891 |
Census Appearances
1930
Cook, Illinois
Son, age 5
Cook, Illinois · implied b. ~1925 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Collins |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| 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
Son, age 15
Cook-County, Illinois · implied b. ~1925 — 12 household members
| Surname | Collins |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Oak Park |
| 1935 Residence (County) | Cook |
| Industry | 0 |
| Highest Grade | No 8 |
| 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 James Collins across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Collins
Son · 1940 · age 15 · b. ~1925 · Illinois
★ You are viewing this record
Sibling
Margaret Collins
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Collins
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Collins
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Collins
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lawrence Collins
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Raymond Collins
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Collins
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Collins
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Collins
Sibling · 1940 · age 7
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-t0627-00786-00115)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Norman Kenison | 37 | Head | Manager | Illinois |
| 42 | Evelyn Kenison | 36 | Wife | — | Ohio |
| 43 | Thomas Remine | 71 | Head | Proprietor Printer | Canada English |
| 44 | Mary Remine | 68 | Wife | — | Canada English |
| 45 | Albert Layson | 47 | Brother-in-law | Traveling Salesman | Illinois |
| 46 | Elsie Layson | 43 | Daughter | — | Illinois |
| 47 | Thomas Layson | 14 | Grand-son | — | Illinois |
| 48 | Charles L. Bradfield | 48 | Head | Building Salesman | Illinois |
| 49 | Ruth S. Bradfield | 42 | Wife | — | Illinois |
| 50 | Charles L. Jr. Bradfield | 19 | Son | — | Illinois |
| 51 | Ruth A. Bradfield | 9 | Daughter | — | Illinois |
| 52 | Robert E. Smith | 55 | Head | Traffic Clerk | Florida |
| 53 | Cleo Smith | 50 | Wife | — | Ohio |
| 54 | Anton Vlontar | 70 | Head | — | Czechoslovakia |
| 55 | Anton Jr. Vlontar | 42 | Son | Automobile Repairman | Illinois |
| 56 | Emily Vlontar | 34 | Daughter | Packer | Illinois |
| 57 | Hans Andersen | 57 | Head | Carpenter | Denmark |
| 58 | Julia Andersen | 55 | Wife | — | Denmark |
| 59 | Charles Andersen | 28 | Son | Interior Decorator | Illinois |
| 60 | Norman Andersen | 21 | Son | Gas Attendant | Canada English |
| 61 | Lawrence Collins | 50 | Head | Assistant Manager | Illinois |
| 62 | Margaret Collins | 49 | Wife | — | Illinois |
| 63 | Lawrence Jr. Collins | 23 | Son | Timekeeper | Illinois |
| 64 | Charles Collins | 21 | Son | General Clerk | Illinois |
| 65 | Robert Collins | 19 | Son | Shoe Salesman | Illinois |
| 66 | Raymond Collins | 19 | Son | — | Illinois |
| 67 | Edward Collins | 17 | Son | — | Illinois |
| 68 | James Collins THIS PERSON | 15 | Son | — | Illinois |
| 69 | Margaret Collins | 14 | Daughter | — | Illinois |
| 70 | Mary V. Collins | 11 | Daughter | — | Illinois |
| 71 | John Collins | 10 | Son | — | Illinois |
| 72 | Patricia Collins | 7 | Daughter | — | Illinois |
| 73 | Victor Olsen | 55 | Head | Vice President | Minnesota |
| 74 | Rene Olsen | 42 | Wife | — | Minnesota |
| 75 | Richard Olsen | 48 | Brother | — | Minnesota |
| 76 | Haywood T. Newkirk | 34 | Head | Research Chemist | S. Carolina |
| 77 | Ruth Newkirk | 30 | Wife | — | Missouri |
| 78 | Timothy H. Newkirk | 3 | Son | — | Iowa |
| 79 | Walter Lecture | 34 | Head | Bookkeeper | Illinois |
| 80 | Jean Lecture | 34 | Wife | — | 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)