JC
James Cavanaugh — 1940 US Census Record
Model Tree available1940 United States Federal Census · Will-County, Illinois
Our Model Tree links this James Cavanaugh across the 1920, 1930 and 1940 US Censuses in Will-County, Illinois (XGBoost, ~Confirmed), with identified parents James & James — first a son (b.~1912), then head of a 3-person household.
Age 28
b. ~1912
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Will-County, Illinois |
| Surname | Cavanaugh |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Florence Twp. |
| 1935 Residence (County) | Will |
| Additional Details | |
| Occupation | Operator |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 450 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Operator |
| Township / Ward | Florence Twp |
| Est. Birth Year | ~1912 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Margaret Cavanaugh | Spouse | — | 64 | ~1876 |
| James Cavanaugh | Head | — | 73 | ~1867 |
| James Cavanaugh | Son | — | 28 | ~1912 |
Census Appearances
1920
Cook, Illinois
Son, age 8
Cook, Illinois · implied b. ~1912 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kavanaugh |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 18
Cook, Illinois · implied b. ~1912 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cavanaugh |
| Given Name | James Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Assembler |
| Industry | Radio |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Will-County, Illinois
Son, age 28
Will-County, Illinois · implied b. ~1912 — 3 household members
| Surname | Cavanaugh |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Florence Twp. |
| 1935 Residence (County) | Will |
| Occupation | Operator |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 450 |
| Highest Grade | No 8 |
| 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 James Cavanaugh across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Cavanaugh (~0.92 confidence) and father James Kavanaugh (~0.92 confidence) and father James Cavanaugh (~0.92 confidence) and mother Elizabeth Kavanaugh (~0.92 confidence) and mother Margaret Cavanaugh (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Cavanaugh
b. ~1888
Source father
● Household
· direct · ~0.92
Father
James Kavanaugh
b. ~1869
Source father
● Household
· direct · ~0.92
Father
James Cavanaugh
b. ~1867
Source father
● Household
· direct · ~0.92
Mother
Elizabeth Kavanaugh
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Margaret Cavanaugh
b. ~1876
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Cavanaugh
Son · 1940 · age 28 · b. ~1912 · 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 — Will-County, Illinois
Open full size
1940 US Federal Census — Will-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00907-00203)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Franklin Foresight | 15 | Boarder | — | Illinois |
| 42 | James Cavanaugh | 73 | Head | Operator | Illinois |
| 43 | Margaret Cavanaugh | 64 | Wife | — | Illinois |
| 44 | James Cavanaugh THIS PERSON | 28 | Son | Operator | Illinois |
| 45 | Phillip Mood | 60 | Head | Operator | Scotland |
| 46 | Annie Mood | 58 | Wife | — | Scotland |
| 47 | Jeanette Mood | 18 | Daughter | — | Illinois |
| 48 | Archibald Mood | 14 | Son | Laborer | Illinois |
| 49 | Mary Hayden | 66 | Head | — | England |
| 50 | Marie Burns | 16 | Servant | — | Illinois |
| 51 | William Hensch | 59 | Head | — | Illinois |
| 52 | Olga Hensch | 55 | Wife | — | Germany |
| 53 | John Hensch | 32 | Son | Scraper | Illinois |
| 54 | Olga Hensch | 20 | Daughter | — | Illinois |
| 55 | James Hensch | 17 | Son | Laborer | Illinois |
| 56 | Robert Hensch | 14 | Son | — | Illinois |
| 57 | Melanie Hensch | 66 | Sister | — | Illinois |
| 58 | Philip Doyle | 48 | Head | Operator | Illinois |
| 59 | Mary Doyle | 44 | Sister | — | Illinois |
| 60 | James Doyle | 43 | Brother | Operator | Illinois |
| 61 | Agnes Doyle | 37 | Sister | — | Illinois |
| 62 | Richard Henney | 46 | Head | Laborer | Illinois |
| 63 | Martha Henney | 44 | Wife | — | Illinois |
| 64 | Richard Henney | 16 | Son | Laborer | Illinois |
| 65 | Laverne Henney | 14 | Son | — | Illinois |
| 66 | Harry Henney | 11 | Son | — | Illinois |
| 67 | Betty Henney | 9 | Daughter | — | Illinois |
| 68 | Herbert Butshaw | 44 | Head | Laborer | Illinois |
| 69 | Amanda Butshaw | 35 | Wife | — | Illinois |
| 70 | Theola Butshaw | 8 | Daughter | — | Illinois |
| 71 | Daryl Butshaw | 7 | Son | — | Illinois |
| 72 | Lavada Sollick | 11 | Niece | — | Illinois |
| 73 | Peter Sollick | 10 | Nephew | — | Illinois |
| 74 | Herbert Byford | 32 | Head | Operator | Illinois |
| 75 | Laura Byford | 22 | Wife | — | Illinois |
| 76 | Kenneth Byford | 2 | Son | — | Illinois |
| 77 | Henry Cernaghie | 17 | Lodger | — | Illinois |
| 78 | Leone Geiss | 42 | Head | Operator | Illinois |
| 79 | Ellen Geiss | 43 | Wife | — | Illinois |
| 80 | Laverne Geiss | 16 | Son | Laborer | Illinois |
Pedigree Summary
James
Gen 1 · 5 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)