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William Riley — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this William Riley across the 1910, 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents George & Mary — first a head (b.~1897), then head of a 5-person household.
Age 43
b. ~1897
Male
Head
Born: Indiana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Riley |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Truck Driver |
| Industry | City Water Dept |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 2000 |
| Highest Grade | 8 |
| 1935 Residence | Same Place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Truck Driver |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1897 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| William Riley | Head | — | 43 | ~1897 |
| Eugene Riley | Son | — | 13 | ~1927 |
| John Riley | Son | — | 17 | ~1923 |
| William Riley | Son | — | 19 | ~1921 |
| Catherine Riley | Spouse | — | 41 | ~1899 |
Census Appearances
1910
Cook, Illinois
Son, age 13
Cook, Illinois · implied b. ~1897 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Riley |
| Given Name | William McKinley |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | At School |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1920
Cook, Illinois
Son, age 23
Cook, Illinois · implied b. ~1897 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Riley |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | Chauffeur |
| Industry | Stockton Co. |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Cook, Illinois
Head, age 33
Cook, Illinois · implied b. ~1897 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Riley |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Indiana |
| Age at First Marriage | 23 |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | Chauffeur |
| Industry | City |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | $62.50 |
| Home Value / Rent | R |
| Veteran | R |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Cook-County, Illinois
Head, age 43
Cook-County, Illinois · implied b. ~1897 — 5 household members
| Surname | Riley |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | Truck Driver |
| Industry | City Water Dept |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 2000 |
| Highest Grade | 8 |
| 1935 Residence | Same Place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 Riley across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father George Riley (~0.92 confidence) and mother Mary Riley (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
George Riley
b. ~1859
Source father
● Household
· direct · ~0.92
Mother
Mary Riley
b. ~1859
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Riley
Head · 1940 · age 43 · b. ~1897 · 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-t0627-00982-00794)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Alfred Weinberg | 33 | Head | Store Designer | Illinois |
| 2 | Theresa Weinberg | 28 | Wife | — | Pennsylvania |
| 3 | Naomi Weinberg | 1 | Daughter | — | Illinois |
| 4 | Anna H. Herbst | 61 | Mother-in-law | — | Poland |
| 5 | William Riley THIS PERSON | 43 | Head | Truck Driver | Indiana |
| 6 | Catherine Riley | 41 | Wife | — | Illinois |
| 7 | William Riley | 19 | Son | — | Illinois |
| 8 | John Riley | 17 | Son | — | Illinois |
| 9 | Eugene Riley | 13 | Son | — | Illinois |
| 10 | Sidney Miller | 34 | Head | Bus Driver | Illinois |
| 11 | Edna Miller | 29 | Wife | — | Illinois |
| 12 | Benita Miller | 0 | Daughter | — | Illinois |
| 13 | John Mcdonough | 39 | Head | Lawyer | Illinois |
| 14 | Helen Mcdonough | 34 | Wife | — | Illinois |
| 15 | William Mcdonough | 4 | Son | — | Illinois |
| 16 | John Tucker | 55 | Lodger | Chauffeur | Illinois |
| 17 | Jean Tucker | 20 | Lodger | Clerk | Illinois |
| 18 | Patrick Harrington | 35 | Head | Freight Handler | Irish Free State |
| 19 | Mary Harrington | 33 | Wife | — | Irish Free State |
| 20 | Ben Kriegel | 47 | Head | Manager | Russia |
| 21 | Anna Kriegel | 41 | Wife | Sales Clerk | Russia |
| 22 | Esther Kriegel | 14 | Daughter | — | Illinois |
| 23 | Sherwin Kriegel | 8 | Son | — | Illinois |
| 24 | Richard Modoff | 26 | Head | Salesman | Illinois |
| 25 | Pauline Modoff | 22 | Wife | — | Minnesota |
| 26 | John Schneider | 53 | Head | Conductor | Iowa |
| 27 | Ella Schneider | 51 | Wife | — | Iowa |
| 28 | Joseph Klatzo | 55 | Head | Janitor | Lithuania |
| 29 | Emily Klatzo | 47 | Wife | — | Lithuania |
| 30 | Dargis Klatzo | 27 | Son | Clerk | Illinois |
| 31 | Bernice Klatzo | 24 | Daughter | Beauty Operator | Illinois |
| 32 | Adolph Herman | 56 | Head | Tool & Dye Maker | Latvia |
| 33 | Alice Herman | 49 | Wife | — | Latvia |
| 34 | Harold Ellefsan | 24 | Head | Sales Clerk | Wisconsin |
| 35 | Marilyn Ellefsan | 25 | Wife | Office Clerk | Wisconsin |
| 36 | Howard Crosson | 31 | Head | Mechanic | Illinois |
| 37 | Blanche Crosson | 30 | Wife | — | Illinois |
| 38 | Harry Reel | 33 | Head | Bus Driver | Rumania |
| 39 | Irene Reel | 32 | Wife | — | Illinois |
| 40 | Lawrence Reel | 7 | Son | — | Illinois |
Related Census Records
Pedigree Summary
William
Gen 1 · 2 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)