WB
William Barrett — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this William Barrett across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents John & Helen — first a son (b.~1916), then head of a 10-person household.
Age 24
b. ~1916
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Barrett |
| Given Name | William G. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Office Worker |
| Industry | Telephone Company |
| Class of Worker | PW |
| Income (1939) | 496 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Office Worker |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1916 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Virginia Barrett | Daughter | — | 30 | ~1910 |
| Jane Barrett | Daughter | — | 26 | ~1914 |
| Nancy Barrett | Daughter | — | 14 | ~1926 |
| Frances Barrett | Daughter | — | 28 | ~1912 |
| Mary Barrett | Daughter | — | 21 | ~1919 |
| John Barrett | Head | — | 71 | ~1869 |
| William Barrett | Other | — | 67 | ~1873 |
| Arthur Barrett | Son | — | 22 | ~1918 |
| William Barrett | Son | — | 24 | ~1916 |
| Helen Barrett | Spouse | — | 59 | ~1881 |
Census Appearances
1920
Cook, Illinois
Other, age 3
Cook, Illinois · implied b. ~1917 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Barrett |
| Given Name | William J. |
| Relationship to Head | Grand-son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| 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 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Barrett |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 24
Cook-County, Illinois · implied b. ~1916 — 10 household members
| Surname | Barrett |
| Given Name | William G. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | Office Worker |
| Industry | Telephone Company |
| Class of Worker | PW |
| Income (1939) | 496 |
| 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 William Barrett across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Barrett (~0.92 confidence) and mother Helen Barrett (~0.92 confidence) and mother Mary Barrett (~0.92 confidence) and father William Barrett (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Barrett
b. ~1869
Source father
● Household
· direct · ~0.92
Mother
Helen Barrett
b. ~1881
Source mother
● Household
· direct · ~0.92
Mother
Mary Barrett
b. ~1881
Source mother
● Household
· direct · ~0.92
Father
William Barrett
b. ~1882
Source father
● Household
· direct · ~0.92
This person
Anchor record
William Barrett
Son · 1940 · age 24 · b. ~1916 · Illinois
★ You are viewing this record
Sibling
Frances Barrett
Sibling · 1940 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Barrett
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nancy Barrett
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Barrett
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jane Barrett
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Virginia Barrett
Sibling · 1940 · age 30
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-t0627-00996-00406)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Alfred S. Chellberg | 52 | Head | Plumber | Minnesota |
| 2 | Elizabeth A. Chellberg | 50 | Wife | — | Illinois |
| 3 | John E. Barrett | 71 | Head | Retail Grocer | England |
| 4 | Helen M. Barrett | 59 | Wife | — | Illinois |
| 5 | Virginia Barrett | 30 | Daughter | Librarian | Illinois |
| 6 | Frances Barrett | 28 | Daughter | Clerk | Illinois |
| 7 | Jane Barrett | 26 | Daughter | Office Worker | Illinois |
| 8 | William G. Barrett THIS PERSON | 24 | Son | Office Worker | Illinois |
| 9 | Arthur Barrett | 22 | Son | — | Illinois |
| 10 | Mary Barrett | 21 | Daughter | — | Illinois |
| 11 | Nancy Barrett | 14 | Daughter | — | Illinois |
| 12 | William F. Barrett | 67 | Brother | — | Canada |
| 13 | Frank E. Elliott | 76 | Head | — | Ohio |
| 14 | Martha Stafford | 73 | Housekeeper | Housekeeper | Indiana |
| 15 | Charles J. Murray | 70 | Head | Manufacturer | Illinois |
| 16 | Virginia Murray | 40 | Wife | — | Kentucky |
| 17 | Patricia Murray | 12 | Daughter | — | Kentucky |
| 18 | Charles J. Murray | 7 | Son | — | Illinois |
| 19 | Louise Loula | 36 | Maid | Maid | Czechoslovakia |
| 20 | Louis Faulkner | 65 | Head | Doctor Of Medicine | Illinois |
| 21 | Mildred Faulkner | 51 | Wife | — | Illinois |
| 22 | John Faulkner | 20 | Son | — | Illinois |
| 23 | Margaret Faulkner | 14 | Daughter | — | Illinois |
| 24 | Helen Rasmussen | 37 | Maid | Maid | Illinois |
| 25 | Harry D. Lannholm|Lannholm | 54 | Head | Doctor Of Osteopathy | Illinois |
| 26 | Laura Lannholm|Lannholm | 54 | Wife | — | Illinois |
| 27 | Lois Lannholm|Lannholm | 15 | Daughter | — | Illinois |
| 28 | Mary C. Holbrook | 63 | Head | Running House | Illinois |
| 29 | Minnie Hansen | 64 | Lodger | — | Alabama |
| 30 | Moses Boucher | 39 | Lodger | Varnish Sprayer | Michigan |
| 31 | Bernard Shepard | 41 | Lodger | Electrician | Wisconsin |
| 32 | Irving J. Eales | 70 | Head | Doctor Of Medicine | Wisconsin |
| 33 | Martha Eales | 64 | Wife | — | Illinois |
| 34 | Howard A. Hansen | 25 | Head | Machinist | Wisconsin |
| 35 | Ruth Hansen | 23 | Wife | — | Illinois |
| 36 | Linda Hansen | 1 | Daughter | — | Illinois |
| 37 | Henry A. Hass | 36 | Head | Sign Painter | Illinois |
| 38 | Bernice Hass | 33 | Wife | — | Illinois |
| 39 | Donald Hass | 11 | Son | — | Illinois |
| 40 | Robert Hass | 9 | Son | — | Illinois |
Pedigree Summary
William + 6 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)