WP
William Phelps — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Kane-County, Illinois
Our Model Tree links this William Phelps across the 1930 and 1940 US Censuses in Kane-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1921), then head of a 13-person household.
Age 19
b. ~1921
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kane-County, Illinois |
| Surname | Phelps |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Elgin City |
| 1935 Residence (County) | Kane |
| Additional Details | |
| Occupation | factory employee |
| Industry | piston mfg. co. |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 190 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Factory Employee |
| Township / Ward | Elgin City |
| Est. Birth Year | ~1921 |
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.
13 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Charles Phelps | Son | — | 12 | ~1928 |
| Merle Phelps | Son | — | 11 | ~1929 |
| Charlotte Phelps | Daughter | — | 22 | ~1918 |
| Bruce Phelps | Son | — | 3 | ~1937 |
| Betty Phelps | Daughter | — | 15 | ~1925 |
| William Phelps | Son | — | 19 | ~1921 |
| James Phelps | Son | — | 14 | ~1926 |
| Charlotte Phelps | Spouse | — | 47 | ~1893 |
| Paul Phelps | Son | — | 18 | ~1922 |
| Gordon Phelps | Son | — | 5 | ~1935 |
| Ruth Phelps | Daughter | — | 20 | ~1920 |
| Clarence Phelps | Head | — | 48 | ~1892 |
| Robert Phelps | Son | — | 24 | ~1916 |
Census Appearances
1930
Kane, Illinois
Son, age 9
Kane, Illinois · implied b. ~1921 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Phelps |
| Given Name | William J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Kane-County, Illinois
Son, age 19
Kane-County, Illinois · implied b. ~1921 — 13 household members
| Surname | Phelps |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Elgin City |
| 1935 Residence (County) | Kane |
| Occupation | factory employee |
| Industry | piston mfg. co. |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 190 |
| 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 Phelps across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Phelps
Son · 1940 · age 19 · b. ~1921 · Illinois
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Sibling
Bruce Phelps
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Phelps
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gordon Phelps
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Phelps
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Phelps
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Merle Phelps
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paul Phelps
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Phelps
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Phelps
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charlotte Phelps
Sibling · 1940 · age 22
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 — Kane-County, Illinois
Open full size
1940 US Federal Census — Kane-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00821-00407)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Laura Erickson | 37 | Daughter | Factory Employee | Illinois |
| 2 | Walter Erickson | 35 | Son | — | Illinois |
| 3 | Clarence Phelps | 48 | Head | Steam Fitter | Illinois |
| 4 | Charlotte Phelps | 47 | Wife | — | Illinois |
| 5 | Robert Phelps | 24 | Son | Steam Fitter | Illinois |
| 6 | Charlotte Phelps | 22 | Daughter | Factory Employee | Illinois |
| 7 | Ruth Phelps | 20 | Daughter | — | Illinois |
| 8 | William Phelps THIS PERSON | 19 | Son | Factory Employee | Illinois |
| 9 | Paul Phelps | 18 | Son | Factory Employee | Illinois |
| 10 | Betty Phelps | 15 | Daughter | — | Illinois |
| 11 | James Phelps | 14 | Son | — | Illinois |
| 12 | Charles Phelps | 12 | Son | — | Illinois |
| 13 | Merle Phelps | 11 | Son | — | Illinois |
| 14 | Gordon Phelps | 5 | Son | — | Illinois |
| 15 | Bruce Phelps | 3 | Son | — | Illinois |
| 16 | Clarence P. Kadow | 33 | Head | Mechanic | Illinois |
| 17 | Verna Kadow | 32 | Wife | — | Illinois |
| 18 | Nancy Kadow | 1 | Daughter | — | Illinois |
| 19 | Gordon Wollenberg | 22 | Brother-in-law | — | Illinois |
| 20 | Philomil Stack | 76 | Head | Baker | Illinois |
| 21 | Abbie Stack | 75 | Wife | — | Illinois |
| 22 | Rebecca Stack | 3 | Daughter | — | Illinois |
| 23 | Homer Smith | 28 | Head | Bookkeeper | Illinois |
| 24 | Ruth Smith | 29 | Wife | — | Michigan |
| 25 | Marilyn Smith | 4 | Daughter | — | Illinois |
| 26 | Emil Boncosky | 39 | Head | Employee | Illinois |
| 27 | Gertrude Boncosky | 39 | Wife | Employee | Illinois |
| 28 | Marian Boncosky | 18 | Daughter | — | Illinois |
| 29 | Lester Braun | 39 | Head | Bookkeeper | Illinois |
| 30 | Genevieve Braun | 31 | Wife | — | Illinois |
| 31 | Joanne Braun | 2 | Daughter | — | Illinois |
| 32 | William Smith | 48 | Head | — | Illinois |
| 33 | Muriel Smith | 44 | Wife | — | Iowa |
| 34 | Harold Smith | 20 | Son | Usher | So. Dakota |
| 35 | Stuart Smith | 24 | Son | Factory Employee | So. Dakota |
| 36 | Chris Pettersen | 38 | Head | Carpenter | Sweden |
| 37 | Hertha Pettersen | 35 | Wife | — | No. Dakota |
| 38 | Axel Pettersen | 35 | Brother | Carpenter | Sweden |
| 39 | George Nichols | 34 | Head | Supervisor | Illinois |
| 40 | Lorraine Nichols | 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)