JT
John Thomas — 1940 US Census Record
Model Tree available1940 United States Federal Census · Jefferson-County, Alabama
Our Model Tree links this John Thomas across the 1920, 1930 and 1940 US Censuses in Jefferson-County, Alabama (XGBoost, ~Confirmed), with identified parents John & John — first a son (b.~1913), then head of a 6-person household.
Age 27
b. ~1913
Male
Son
Born: Alabama
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Alabama |
| Surname | Thomas |
| Given Name | John E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | Birmingham city |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Occupation | Letter carrier |
| Industry | Post office |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 300 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Occupation | Letter Carrier |
| Township / Ward | Birmingham City |
| Est. Birth Year | ~1913 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Martha Thomas | Daughter | — | 19 | ~1921 |
| John Thomas | Head | — | 49 | ~1891 |
| Lula Waddell | Other | — | 63 | ~1877 |
| John Thomas | Son | — | 27 | ~1913 |
| Eugene Thomas | Son | — | 12 | ~1928 |
| Sarah Thomas | Spouse | — | 47 | ~1893 |
Census Appearances
1920
Jefferson, Alabama
Son, age 5
Jefferson, Alabama · implied b. ~1915 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | John S |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Speaks English | Yes |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1930
Jefferson, Alabama
Son, age 15
Jefferson, Alabama · implied b. ~1915 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Can Read/Write | Yes |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1940
Jefferson-County, Alabama
Son, age 27
Jefferson-County, Alabama · implied b. ~1913 — 6 household members
| Surname | Thomas |
| Given Name | John E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | Birmingham city |
| 1935 Residence (County) | Jefferson |
| Occupation | Letter carrier |
| Industry | Post office |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 300 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
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 John Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Thomas (~0.92 confidence) and father John Thomas (~0.92 confidence) and father John Thomas (~0.92 confidence) and mother Martha Thomas (~0.92 confidence) and mother Margaret Thomas (~0.92 confidence) and mother Sarah Thomas (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Thomas
b. ~1878
Source father
● Household
· direct · ~0.92
Father
John Thomas
b. ~1887
Source father
● Household
· direct · ~0.92
Father
John Thomas
b. ~1891
Source father
● Household
· direct · ~0.92
Mother
Martha Thomas
b. ~1882
Source mother
● Household
· direct · ~0.92
Mother
Margaret Thomas
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Sarah Thomas
b. ~1893
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Thomas
Son · 1940 · age 27 · b. ~1913 · Alabama
★ You are viewing this record
Sibling
Martha Thomas
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eugene Thomas
Sibling · 1940 · age 12
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, Alabama
Open full size
1940 US Federal Census — Jefferson-County, Alabama
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00095-00672)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lee Rigsby | 31 | Head | Mechanic | Alabama |
| 2 | Nellie B Rigsby | 31 | Wife | Housewife | Alabama |
| 3 | Richard Kearney | 40 | Head | Office | Alabama |
| 4 | Ruby D Kearney | 30 | Wife | Housewife | Alabama |
| 5 | John David Kearney | 10 | Son | — | Alabama |
| 6 | Nancy Kearney | 2 | Daughter | — | Alabama |
| 7 | Chester Whited | 42 | Roomer | Salesman | Alabama |
| 8 | Alberta Whited | 34 | Roomer | Saleslady | Alabama |
| 9 | Leroy Whited | 13 | Roomer | — | Alabama |
| 10 | J. H. Robinson | 23 | Roomer | Salesman | Georgia |
| 11 | Sallye Wilson | 41 | Head | Teacher | Arkansas |
| 12 | Ray B Wilson | 21 | Son | Student | Alabama |
| 13 | Bruce Wilson | 18 | Son | Student | Alabama |
| 14 | Walter B Robertson | 34 | Brother | Salesman | Alabama |
| 15 | Hubert Gardner | 31 | Head | Lather | Alabama |
| 16 | Marie D Gardner | 30 | Wife | Seamstress | Florida |
| 17 | Johnnie Fair | 25 | Brother-in-law | Molder | Florida |
| 18 | Charles Cranford | 37 | Head | Truck Driver | Alabama |
| 19 | Lucille C Cranford | 36 | Wife | Seamstress | Texas |
| 20 | Virginia Cranford | 13 | Daughter | — | Texas |
| 21 | Lewis Cranford | 10 | Son | — | Alabama |
| 22 | Homer Simpson | 32 | Head | Book Keeper | Texas |
| 23 | Clara B Simpson | 29 | Wife | — | Alabama |
| 24 | Carl Shirley | 25 | Lodger | Salesman & Preacher | Florida |
| 25 | Louis Parkman | 38 | Head | Truck Driver | Alabama |
| 26 | Curalene R Parkman | 34 | Wife | Clerk | Alabama |
| 27 | Robert Floyd | 33 | Head | Worker | Alabama |
| 28 | Mary June Floyd | 37 | Wife | Servant | Alabama |
| 29 | Albert Archibald | 27 | Roomer | Laborer | Alabama |
| 30 | Annie Archibald | 24 | Roomer | Housewife | Alabama |
| 31 | John Thomas | 49 | Head | Letter Carrier | Alabama |
| 32 | Sarah R Thomas | 47 | Wife | Housewife | Alabama |
| 33 | John E Thomas THIS PERSON | 27 | Son | Letter Carrier | Alabama |
| 34 | Martha Thomas | 19 | Daughter | Stenographer | Alabama |
| 35 | Eugene Thomas | 12 | Son | — | Alabama |
| 36 | Lula Waddell | 63 | Lodger | Housewife | Georgia |
| 37 | Ada B Cutto | 41 | Head | Housewife | Alabama |
| 38 | Marie Cutto | 19 | Daughter | Office Work | Alabama |
| 39 | Johnnie Cutto | 14 | Son | Student | Alabama |
| 40 | Willie Hearn | 44 | Lodger | Manager | Alabama |
Pedigree Summary
John + 2 siblings
Gen 1 · 6 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)