JP
James Phelps — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this James Phelps across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1922), then head of a 12-person household.
Age 18
b. ~1922
Male
Son
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Phelps |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | New worker |
| Industry | Government Project |
| Class of Worker | GW |
| Hours Worked | 26 |
| Income (1939) | 180 |
| Highest Grade | Hs 1 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | New Worker |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1922 |
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 |
|---|---|---|---|---|
| Katherine Phelps | Daughter | — | 14 | ~1926 |
| Janette Phelps | Daughter | — | 1 | ~1939 |
| Thomas Phelps | Son | — | 7 | ~1933 |
| Stephan Phelps | Son | — | 17 | ~1923 |
| James Phelps | Son | — | 18 | ~1922 |
| Patricia Phelps | Daughter | — | 5 | ~1935 |
| William Phelps | Head | — | 36 | ~1904 |
| John Phelps | Son | — | 3 | ~1937 |
| Michael Phelps | Son | — | 4 | ~1936 |
| Mary Phelps | Daughter | — | 9 | ~1931 |
| George Phelps | Son | — | 12 | ~1928 |
| Edna Phelps | Spouse | — | 37 | ~1903 |
Census Appearances
1930
Cook, Illinois
Son, age 9
Cook, Illinois · implied b. ~1921 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Phelps |
| Given Name | James E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Cook-County, Illinois
Son, age 18
Cook-County, Illinois · implied b. ~1922 — 12 household members
| Surname | Phelps |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | New worker |
| Industry | Government Project |
| Class of Worker | GW |
| Hours Worked | 26 |
| Income (1939) | 180 |
| Highest Grade | Hs 1 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 Phelps across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Phelps
Son · 1940 · age 18 · b. ~1922 · Illinois
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Sibling
John Phelps
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Stephan Phelps
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Janette Phelps
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Phelps
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Phelps
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Phelps
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Michael Phelps
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Phelps
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Katherine Phelps
Sibling · 1940 · age 14
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
38 people indexed on this census page (nara:1940:m-t0627-00960-00543)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Jeanette Agger | 26 | Wife | — | Illinois |
| 2 | Irving Higgah | 38 | Head | Chauffeur | Illinois |
| 3 | Margaret Higgah | 34 | Wife | — | Illinois |
| 4 | Raymond Higgah | 6 | Son | — | Illinois |
| 5 | William Maloney | 44 | Head | Conductor | Illinois |
| 6 | Minnie Maloney | 44 | Wife | — | Illinois |
| 7 | William Jr Maloney | 22 | Son | Foreman | Illinois |
| 9 | Stanley Mazurek | 40 | Head | Dye Adjuster | Illinois |
| 10 | Ethel Mazurek | 34 | Wife | — | New York |
| 11 | Margaret Mazurek | 18 | Daughter | Packer (Unwritten) | Illinois |
| 12 | Vincent Jerryka | 24 | Son-in-law | Former | Illinois |
| 13 | Antony Sinkus | 60 | Head | — | Lithuania |
| 14 | Anna Sinkus | 60 | Wife | — | Lithuania |
| 15 | George Pulakis | 65 | Lodger | — | Lithuania |
| 16 | William Phelps | 36 | Head | — | Illinois |
| 17 | Edna Phelps | 37 | Wife | — | Iowa |
| 18 | James Phelps THIS PERSON | 18 | Son | New Worker | Minnesota |
| 19 | Stephan Phelps | 17 | Son | New Worker | Minnesota |
| 20 | Katherine Phelps | 14 | Daughter | — | Minnesota |
| 21 | George Phelps | 12 | Son | — | Minnesota |
| 22 | Mary Phelps | 9 | Daughter | — | Illinois |
| 23 | Thomas Phelps | 7 | Son | — | Illinois |
| 24 | Patricia Phelps | 5 | Daughter | — | Illinois |
| 25 | Michael Phelps | 4 | Son | — | Illinois |
| 26 | John Phelps | 3 | Son | — | Illinois |
| 27 | Janette Phelps | 1 | Daughter | — | Illinois |
| 29 | Louis Edlund | 66 | Head | — | Sweden |
| 30 | Stilea Edlund | 52 | Wife | — | Sweden |
| 31 | Rianer Edlund | 27 | Son | Candy Maker | Illinois |
| 32 | Harold Edlund | 17 | Son | — | Illinois |
| 33 | Fred Finker | 35 | Head | Elevator Man | Illinois |
| 34 | Martha Finker | 36 | Wife | — | Illinois |
| 35 | Stanley Finker | 12 | Son | — | Illinois |
| 36 | Dorothy Finker | 10 | Daughter | — | Illinois |
| 37 | Bernard Finker | 2 | Son | — | Illinois |
| 38 | Sophia Canning | 30 | Wife | — | Illinois |
| 39 | Ralph Canning | 25 | Son | Electricians Helper | Illinois |
| 40 | Lewis Carrarini | 44 | Head | Shoe Repair | Italy |
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)