JG
James Gregory — 1940 US Census Record
Model Tree available1940 United States Federal Census · Jefferson-County, Illinois
Our Model Tree links this James Gregory across the 1920, 1930 and 1940 US Censuses in Jefferson-County, Illinois (XGBoost, ~Confirmed), with identified parents Logan & Mabel — first a son (b.~1919), then head of a 4-person household.
Age 21
b. ~1919
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Illinois |
| Surname | Gregory |
| Given Name | James Alan |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Grand Prairie T. |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Industry | NP |
| Class of Worker | 0 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Grand Prairie T |
| Est. Birth Year | ~1919 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| Virginia Gregory | Daughter | — | 18 | ~1922 |
| Mable Gregory | Spouse | — | 50 | ~1890 |
| James Gregory | Son | — | 21 | ~1919 |
| Logan Gregory | Head | — | 55 | ~1885 |
Census Appearances
1920
Jefferson, Illinois
Son, age
Jefferson, Illinois · implied b. ~1920 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gregory |
| Given Name | James A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| 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 |
1930
Jefferson, Illinois
Son, age 10
Jefferson, Illinois · implied b. ~1920 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gregory |
| Given Name | James L. |
| 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/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Jefferson-County, Illinois
Son, age 21
Jefferson-County, Illinois · implied b. ~1919 — 4 household members
| Surname | Gregory |
| Given Name | James Alan |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Grand Prairie T. |
| 1935 Residence (County) | Jefferson |
| Industry | NP |
| Class of Worker | 0 |
| 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 Gregory across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Logan Gregory (~0.92 confidence) and mother Mabel Gregory (~0.92 confidence) and mother Mable Gregory (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Logan Gregory
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Mabel Gregory
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Mable Gregory
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Gregory
Son · 1940 · age 21 · b. ~1919 · Illinois
★ You are viewing this record
Sibling
Virginia Gregory
Sibling · 1940 · age 18
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 — Jefferson-County, Illinois
Open full size
1940 US Federal Census — Jefferson-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00816-00238)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Fred Hoyt | 59 | Head | Farmer | Illinois |
| 2 | Quasie | Quasir Hoyt | 50 | Wife | — | Illinois |
| 3 | Lois Ann Hoyt | 23 | Daughter | Teacher | Illinois |
| 4 | Geo Eugene Hoyt | 19 | Son | — | Illinois |
| 5 | Merritt Reed Hoyt | 9 | Son | — | Illinois |
| 6 | J. S. Cairns | 74 | Head | Farmer | Illinois |
| 7 | Ada Cairns | 71 | Wife | — | Illinois |
| 8 | Muriel Cairns | 37 | Daughter | — | Illinois |
| 9 | Lizzie Hoyt | 50 | Head | — | Illinois |
| 10 | Philomena Jensen | 30 | Niece | — | Pennsylvania |
| 11 | Nebraska Denight | 84 | Aunt | — | Illinois |
| 12 | Nellie Markham | 29 | Head | Farmer | Illinois |
| 13 | A. H. Mefflin | 66 | Uncle | Farmer | Illinois |
| 14 | C. F. Ladner | 34 | Head | Laborer | Illinois |
| 15 | June Ladner | 37 | Wife | — | Illinois |
| 16 | Gilbert Keck | 16 | Step son | — | Illinois |
| 17 | June Keck | 7 | Step daughter | — | Illinois |
| 18 | Evelyn Keck | 5 | Step daughter | — | Illinois |
| 19 | Harlan Bray | 37 | Head | Brick Layer | Illinois |
| 20 | Myrtle Bray | 36 | Wife | — | Illinois |
| 21 | Opal Bray | 16 | Daughter | — | Illinois |
| 22 | Betty June Bray | 15 | Daughter | — | Illinois |
| 23 | Nancy Bray | 12 | Daughter | — | Illinois |
| 24 | Logan A. Gregory | 55 | Head | Farmer | Illinois |
| 25 | Mable Gregory | 50 | Wife | — | Illinois |
| 26 | James Alan Gregory THIS PERSON | 21 | Son | — | Illinois |
| 27 | Virginia Gregory | 18 | Daughter | — | Illinois |
| 28 | Loren Benjamin | 33 | Head | Welder | Illinois |
| 29 | Verna Benjamin | 33 | Wife | — | Illinois |
| 30 | J. D. Clifton | 70 | Head | Farming | Illinois |
| 31 | R. W. Clifton | 74 | Brother | Farming | Illinois |
| 32 | Hester Masters | 24 | Head | Laborer | Illinois |
| 33 | Eileen Masters | 24 | Wife | — | Indiana |
| 34 | Rosella Masters | 7 | Daughter | — | Illinois |
| 35 | Jack Masters | 5 | Son | — | Illinois |
| 36 | Shelby Masters | 2 | Son | — | Illinois |
| 37 | Barbara Masters | 0 | Daughter | — | Illinois |
| 38 | Clyde Burlong | 33 | Head | Laborer | Illinois |
| 39 | Bernice Burlong | 27 | Wife | — | Illinois |
| 40 | Arthur C. Burlong | 10 | Son | — | Illinois |
Pedigree Summary
James + 1 sibling
Gen 1 · 3 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)