PW
Peter Williams — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Winnebago-County, Illinois
Our Model Tree links this Peter Williams across the 1920, 1930 and 1940 US Censuses in Winnebago-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1889), then head of a 6-person household.
Age 51
b. ~1889
Male
Head
Born: Lithuania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Winnebago-County, Illinois |
| Surname | Williams |
| Given Name | Peter |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Lithuania |
| 1935 Residence (City) | Rockford City |
| 1935 Residence (County) | Winnebago |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Auto mechanic |
| Industry | Auto Repairing |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 500 |
| Highest Grade | No 3 |
| 1935 Residence | Same place |
| Birth Country | Lithuania |
| Birthplace (normalized) | lithuania |
| Occupation | Auto Mechanic |
| Township / Ward | Rockford City |
| Est. Birth Year | ~1889 |
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 Peter | Age | Birth yr |
|---|---|---|---|---|
| Palmera Matthews | Daughter | — | 21 | ~1919 |
| Peter Williams | Head | — | 51 | ~1889 |
| Mike Sokolowski | Other | — | 39 | ~1901 |
| Max Matthews | Other | — | 25 | ~1915 |
| Burdette Matthews | Daughter | — | 2 | ~1938 |
| Elizabeth Williams | Spouse | — | 56 | ~1884 |
Census Appearances
1920
Winnebago, Illinois
Head, age 31
Winnebago, Illinois · implied b. ~1889 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Peter |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Lithuania |
| Year of Immigration | 1912 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Lithuania |
| Mother's Birthplace | Lithuania |
| Occupation | Laborer |
| Industry | Machine Shop |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Lithuanian |
| Home Owned/Rented | R |
| Birth Country | Lithuania |
| Birthplace (normalized) | lithuania |
1930
Winnebago, Illinois
Head, age 42
Winnebago, Illinois · implied b. ~1888 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Peter |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Lithuania |
| Naturalization Status | Naturalized |
| Year of Immigration | 1911 |
| Age at First Marriage | 24 |
| Father's Birthplace | Lithuania |
| Mother's Birthplace | Lithuania |
| Occupation | Garage |
| Industry | Telephone Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Lithuanian |
| Home Owned/Rented | O |
| Home Value / Rent | 8000 |
| Birth Country | Lithuania |
| Birthplace (normalized) | lithuania |
1940
Winnebago-County, Illinois
Head, age 51
Winnebago-County, Illinois · implied b. ~1889 — 6 household members
| Surname | Williams |
| Given Name | Peter |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Lithuania |
| 1935 Residence (City) | Rockford City |
| 1935 Residence (County) | Winnebago |
| Naturalization Status | Naturalized |
| Occupation | Auto mechanic |
| Industry | Auto Repairing |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 500 |
| Highest Grade | No 3 |
| 1935 Residence | Same place |
| Birth Country | Lithuania |
| Birthplace (normalized) | lithuania |
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 Peter Williams across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Peter Williams
Head · 1940 · age 51 · b. ~1889 · 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 — Winnebago-County, Illinois
Open full size
1940 US Federal Census — Winnebago-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00914-00158)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Arthur Johnson | 48 | Head | Finisher | Sweden |
| 42 | Hilma Johnson | 47 | Wife | — | Sweden |
| 43 | Frances Johnson | 21 | Daughter | Clerk | Illinois |
| 44 | Joseph Forsythe | 66 | Lodger | Assembler | Ireland |
| 45 | Axel V. Nordberg | 46 | Head | Repair Man | Illinois |
| 46 | Winifred Nordberg | 56 | Wife | — | Illinois |
| 47 | Bernadette Nordberg | 23 | Daughter | File Clerk | Illinois |
| 48 | Ewald Axelson | 33 | Head | Bartender | Sweden |
| 49 | Maxine Axelson | 27 | Wife | — | Illinois |
| 50 | Edward Axelson | 5 | Son | — | Illinois |
| 51 | Katharyne Fay | 37 | Head | Secretary | Illinois |
| 52 | Elizabeth Fay | 13 | Daughter | — | Indiana |
| 53 | John Fay | 11 | Son | — | Wisconsin |
| 54 | Robert Trella | 27 | Head | Buffer | Illinois |
| 55 | Jean Trella | 26 | Wife | — | Illinois |
| 56 | Diana Trella | 2 | Daughter | — | Illinois |
| 57 | Veda Blades | 33 | Head | Instructor | Wisconsin |
| 58 | Delores Blades | 11 | Daughter | — | Illinois |
| 59 | Donald Blades | 9 | Son | — | Illinois |
| 60 | Esther Erickson | 44 | Head | Assembler | Sweden |
| 61 | Eric Erickson | 16 | Son | — | Illinois |
| 62 | Doris Erickson | 12 | Daughter | — | Illinois |
| 63 | Peter Williams THIS PERSON | 51 | Head | Auto Mechanic | Lithuania |
| 64 | Elizabeth Williams | 56 | Wife | — | Lithuania |
| 65 | Max Matthews | 25 | Son-in-law | Auto Mechanic | Illinois |
| 66 | Palmera Matthews | 21 | Daughter | Operator | Illinois |
| 67 | Burdette Matthews | 2 | Daughter | — | Illinois |
| 68 | Mike Sokolowski | 39 | Lodger | Furn Refin | Lithuania |
| 69 | Frank Romano | 54 | Head | Machinist | Italy |
| 70 | Anna Romano | 47 | Wife | — | Illinois |
| 71 | Frank Romano | 26 | Son | Musician | Illinois |
| 72 | Rose Romano | 22 | Daughter | Assembler | Illinois |
| 73 | Lucille Romano | 20 | Daughter | Operator | Illinois |
| 74 | Josephine Romano | 19 | Daughter | — | Illinois |
| 75 | Raymond Romano | 14 | Son | — | Illinois |
| 76 | Hugo Carlson | 49 | Head | Machinist | Sweden |
| 77 | Hulda Carlson | 42 | Wife | — | Sweden |
| 78 | Gust Streed | 66 | Head | — | Sweden |
| 79 | Emil Streed | 26 | Son | Sign Painter | Illinois |
| 80 | Shirley Streed | 21 | 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)