EJ
Earl Jones — 1940 US Census Record
Model Tree available1940 United States Federal Census · Rock-Island-County, Illinois
Our Model Tree links this Earl Jones across the 1920, 1930 and 1940 US Censuses in Rock-Island-County, Illinois (XGBoost, ~Confirmed), with identified parents John & John — first a head (b.~1910), then head of a 4-person household.
Age 30
b. ~1910
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Rock-Island-County, Illinois |
| Surname | Jones |
| Given Name | Earl |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Rock Island City |
| 1935 Residence (County) | Rock Island |
| Additional Details | |
| Occupation | Time Study |
| Industry | Mfg. Farm Imp. |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1800 |
| Highest Grade | C-4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Time Study |
| Township / Ward | Rock Island City |
| Est. Birth Year | ~1910 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Earl | Age | Birth yr |
|---|---|---|---|---|
| Earl Jones | Head | — | 30 | ~1910 |
| John Jones | Other | — | 54 | ~1886 |
| Peter Jones | Son | — | 15 | ~1925 |
| Marie Jones | Spouse | — | 30 | ~1910 |
Census Appearances
1920
Rock Island, …
Son, age 10
Rock Island, Illinois · implied b. ~1910 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jones |
| Given Name | Earl |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Rock Island, …
Son, age 20
Rock Island, Illinois · implied b. ~1910 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jones |
| Given Name | Earl |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Rock-Island-County, Illinois
Head, age 30
Rock-Island-County, Illinois · implied b. ~1910 — 4 household members
| Surname | Jones |
| Given Name | Earl |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Rock Island City |
| 1935 Residence (County) | Rock Island |
| Occupation | Time Study |
| Industry | Mfg. Farm Imp. |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1800 |
| Highest Grade | C-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 Earl Jones across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Jones (~0.92 confidence) and father John Jones (~0.92 confidence) and mother Jennie Jones (~0.92 confidence) and mother Jennie Jones (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Jones
b. ~1886
Source father
● Household
· direct · ~0.92
Father
John Jones
b. ~1887
Source father
● Household
· direct · ~0.92
Mother
Jennie Jones
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Jennie Jones
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Earl Jones
Head · 1940 · age 30 · b. ~1910 · 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 — Rock-Island-County, Illinois
Open full size
1940 US Federal Census — Rock-Island-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00877-00401)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lula V. Dean | 44 | Head | — | Illinois |
| 42 | William King Dean | 15 | Son | — | Pennsylvania |
| 43 | Jack Dean | 14 | Son | — | Pennsylvania |
| 44 | Milton Dean | 12 | Son | — | Pennsylvania |
| 45 | Norman Dean | 11 | Son | — | Pennsylvania |
| 46 | Robert Dean | 9 | Son | — | Pennsylvania |
| 47 | Lila Ruth Dean | 7 | Daughter | — | Pennsylvania |
| 48 | Sally Dean | 3 | Daughter | — | Illinois |
| 49 | Ethel Gustafson | 28 | Daughter | Nurse | Illinois |
| 50 | Edward Toliver | 60 | Head | Truck Driver | Illinois |
| 51 | Katherine Toliver | 62 | Wife | — | Illinois |
| 52 | Kathleen Toliver | 16 | Daughter | Office Clerk | Illinois |
| 53 | Carl J. Johnson | 71 | Head | — | Sweden |
| 54 | Amelia Johnson | 65 | Wife | — | Kansas |
| 55 | James Mcdude | 74 | Head | — | Iowa |
| 56 | Minnie Mcdude | 70 | Wife | — | Illinois |
| 57 | Adrian Mcdude | 46 | Son | Accountant | Illinois |
| 58 | Loyal Wilkens | 41 | Head | Machinist | Illinois |
| 59 | Martha Wilkens | 31 | Wife | — | Illinois |
| 60 | John W. Wilkens | 2 | Son | — | Illinois |
| 61 | David King | 36 | Lodger | Line Checker | Iowa |
| 62 | Earl Jones THIS PERSON | 30 | Head | Time Study | Illinois |
| 63 | Marie Jones | 30 | Wife | — | Pennsylvania |
| 64 | Peter Jones | 15 | Son | — | Illinois |
| 65 | John Jones | 54 | Father | Carpenter (Foreman) | Illinois |
| 66 | Delmar Dorley | 49 | Head | Mechanic | Illinois |
| 67 | Lucille Dorley | 49 | Wife | — | Illinois |
| 68 | John Ekelin | 61 | Head | Gen. Agent | Sweden |
| 69 | Anna B. Ekelin | 61 | Wife | — | Sweden |
| 70 | Carolyn Vold | 55 | Sister-in-law | Practical Nurse | Sweden |
| 71 | Harold Vold | 24 | Nephew | Salesman | Minnesota |
| 72 | Gene Vold | 21 | Nephew | Fieldman | Illinois |
| 73 | Arthur Criswell | 54 | Head | Receiving Clerk | Illinois |
| 74 | Madeline Criswell | 55 | Wife | — | Massachusetts |
| 75 | Clarence Thompson | 38 | Head | Office Clerk | Iowa |
| 76 | Geraldine Thompson | 31 | Wife | — | Iowa |
| 77 | Donald Thompson | 13 | Son | — | Iowa |
| 78 | Bonnie Thompson | 10 | Daughter | — | Iowa |
| 79 | Maxine Henderson | 33 | Sister-in-law | Steam Fitter | Iowa |
| 80 | Paul Holland | 48 | Head | Manufacturer | Michigan |
Pedigree Summary
Earl
Gen 1 · 4 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)