JB
James Buckley — 1940 US Census Record
Model Tree available1940 United States Federal Census · St.-Clair-County, Illinois
Our Model Tree links this James Buckley across the 1920, 1930 and 1940 US Censuses in St.-Clair-County, Illinois (XGBoost, ~Confirmed), with identified parents Daniel & Florence — first a head (b.~1915), then head of a 3-person household.
Age 25
b. ~1915
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Clair-County, Illinois |
| Surname | Buckley |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | East St. Louis City |
| 1935 Residence (County) | St. Clair |
| Additional Details | |
| Occupation | Weighter |
| Industry | Wholesale Packing Co. |
| Class of Worker | PW |
| Hours Worked | 36 |
| Income (1939) | 1300 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Weighter |
| Township / Ward | East St Louis City |
| Est. Birth Year | ~1915 |
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 |
|---|---|---|---|---|
| James Buckley | Son | — | 1 | ~1939 |
| Mary Buckley | Spouse | — | 19 | ~1921 |
| James Buckley | Head | — | 25 | ~1915 |
Census Appearances
1920
St Clair, …
Son, age 5
St Clair, Illinois · implied b. ~1915 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Buckley |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
St Clair, …
Son, age 15
St Clair, Illinois · implied b. ~1915 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Buckley |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| 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
St.-Clair-County, Illinois
Head, age 25
St.-Clair-County, Illinois · implied b. ~1915 — 3 household members
| Surname | Buckley |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | East St. Louis City |
| 1935 Residence (County) | St. Clair |
| Occupation | Weighter |
| Industry | Wholesale Packing Co. |
| Class of Worker | PW |
| Hours Worked | 36 |
| Income (1939) | 1300 |
| Highest Grade | H 2 |
| 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 Buckley across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Daniel Buckley (~0.92 confidence) and mother Florence Buckley (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Daniel Buckley
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Florence Buckley
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Buckley
Head · 1940 · age 25 · b. ~1915 · 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 — St.-Clair-County, Illinois
Open full size
1940 US Federal Census — St.-Clair-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00880-00273)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Franklin Hayes | 4 | Son | — | Illinois |
| 2 | Rosalie Hayes | 2 | Daughter | — | Illinois |
| 3 | Ruth Ann Hayes | 0 | Daughter | — | Illinois |
| 4 | Felix Christner | 30 | Head | Butcher | Texas |
| 5 | Mary Christner | 28 | Wife | — | Michigan |
| 6 | Janet Christner | 7 | Daughter | — | Illinois |
| 7 | Betty Lou Christner | 4 | Daughter | — | Illinois |
| 8 | Victor Gregory | 31 | Head | Truck Driver | Poland |
| 9 | Angeline Gregory | 24 | Wife | — | Illinois |
| 10 | Bernice Gregory | 12 | Daughter | — | Illinois |
| 11 | Virginia Gregory | 10 | Daughter | — | Illinois |
| 12 | Lee Cunningham | 30 | Head | Meat Packer | Kentucky |
| 13 | Effie Cunningham | 23 | Wife | Meat Trimmer | Illinois |
| 14 | Catherine Cunningham | 7 | Daughter | — | Illinois |
| 15 | Robert Cunningham | 5 | Son | — | Illinois |
| 16 | Jack Barton | 29 | Head | Laborer | Illinois |
| 17 | Dorothy Barton | 23 | Wife | — | Missouri |
| 18 | Nolan Conte | 6 | Step-son | — | Missouri |
| 19 | James D. Melton | 50 | Head | Laborer | Illinois |
| 20 | Anna Melton | 40 | Wife | — | Illinois |
| 21 | Nathan W. Melton | 16 | Son | — | Illinois |
| 22 | George Vukos | 48 | Head | Proprietor | Yugoslavia |
| 23 | Elizabeth Vukos | 44 | Wife | — | Czechoslovakia |
| 24 | George Vukos | 9 | Son | — | Illinois |
| 25 | John J. Shikas | 26 | Head | Shipping Clerk | Missouri |
| 26 | Ann Shikas | 22 | Wife | — | Illinois |
| 27 | Anthony Paskas | 60 | Head | Laborer | Lithuania |
| 28 | Ann Paskas | 50 | Wife | Sausage Maker | Lithuania |
| 29 | Walter Paskas | 27 | Son | Ship Clerk | Illinois |
| 30 | Julian Baltraitis | 52 | Cousin | Laborer | Lithuania |
| 31 | James Buckley THIS PERSON | 25 | Head | Weighter | Illinois |
| 32 | Mary Alice Buckley | 19 | Wife | — | Illinois |
| 33 | James Jr. Buckley | 1 | Son | — | Illinois |
| 34 | Jack Dycus | 40 | Head | Laborer | Kentucky |
| 35 | Lila Dycus | 40 | Wife | — | Kentucky |
| 36 | Jack Jr. Dycus | 21 | Son | C.C.C. | Kentucky |
| 37 | Leo Dycus | 19 | Son | New Worker | Kentucky |
| 38 | Newton Dycus | 13 | Son | — | Kentucky |
| 39 | Joseph N. Thomas | 56 | Head | Laborer | Illinois |
| 40 | Minnie Thomas | 55 | Wife | — | Illinois |
Pedigree Summary
James
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)