JT
James Thomas — 1940 US Census Record
Model Tree available1940 United States Federal Census · Baltimore-County, Maryland
Our Model Tree links this James Thomas across the 1920, 1930 and 1940 US Censuses in Baltimore-County, Maryland (XGBoost, ~Confirmed), with identified parents James & James — first a son (b.~1919), then head of a 6-person household.
Age 21
b. ~1919
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-County, Maryland |
| Surname | Thomas |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Fairlawn - Dundalk - St. Helena - Turners Station |
| 1935 Residence (County) | Baltimore |
| Additional Details | |
| Occupation | Laborer |
| Industry | steel mill |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 588 |
| Highest Grade | No 6 |
| 1935 Residence | Same house |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Laborer |
| Township / Ward | Fairlawn Dundalk St Helena Turners Station |
| 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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Hattie Thomas | Daughter | — | 15 | ~1925 |
| Vernell Thomas | Daughter | — | 14 | ~1926 |
| Helen Thomas | Daughter | — | 12 | ~1928 |
| James Thomas | Head | — | 56 | ~1884 |
| James Thomas | Son | — | 21 | ~1919 |
| Wilbert Thomas | Son | — | 23 | ~1917 |
Census Appearances
1920
Baltimore, Maryland
Son, age 1
Baltimore, Maryland · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Virginia |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Son, age 11
Baltimore, Maryland · implied b. ~1919 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Virginia |
| Can Read/Write | Yes |
| Mother Tongue | 72 |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-County, Maryland
Son, age 21
Baltimore-County, Maryland · implied b. ~1919 — 6 household members
| Surname | Thomas |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Fairlawn - Dundalk - St. Helena - Turners Station |
| 1935 Residence (County) | Baltimore |
| Occupation | Laborer |
| Industry | steel mill |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 588 |
| Highest Grade | No 6 |
| 1935 Residence | Same house |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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 Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Thomas (~0.92 confidence) and father James Thomas (~0.92 confidence) and mother Hattie Thomas (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Thomas
b. ~1884
Source father
● Household
· direct · ~0.92
Father
James Thomas
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Hattie Thomas
b. ~1896
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Thomas
Son · 1940 · age 21 · b. ~1919 · Maryland
★ You are viewing this record
Sibling
Helen Thomas
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hattie Thomas
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wilbert Thomas
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Vernell Thomas
Sibling · 1940 · age 14
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 — Baltimore-County, Maryland
Open full size
1940 US Federal Census — Baltimore-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01506-00395)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Daisy | 25 | Lodger | — | South Carolina |
| 2 | Marshall Hurley | 47 | Head | Skill Laborer | Virginia |
| 3 | Nannie Hurley | 39 | Wife | General Housework | Virginia |
| 4 | Lawrence Hurley | 16 | Son | New Worker | Virginia |
| 5 | William Thomas | 25 | Son-in-law | — | Maryland |
| 6 | Mary Thomas | 23 | Daughter | General Housework | Virginia |
| 7 | Christine Minter | 7 | Granddaughter | — | Maryland |
| 8 | James Neal | 45 | Head | Skill Laborer | Maryland |
| 9 | Agnes Neal | 35 | Wife | — | Virginia |
| 10 | William Neal | 18 | Son | — | Maryland |
| 11 | Ruth Neal | 17 | Daughter | — | Maryland |
| 12 | Evelyn Neal | 15 | Daughter | — | Maryland |
| 13 | Robert Neal | 13 | Son | — | Maryland |
| 14 | Lois Neal | 12 | Daughter | — | Maryland |
| 15 | Pauline Neal | 9 | Daughter | — | Maryland |
| 16 | James Neal | 8 | Son | — | Maryland |
| 17 | Mildred Neal | 6 | Daughter | — | Maryland |
| 18 | Bettie Neal | 3 | Daughter | — | Maryland |
| 19 | Arthur Bland | 60 | Father-in-law | — | Virginia |
| 20 | Frank Mitchell | 41 | Head | Laborer | South Carolina |
| 21 | Janie Mitchell | 39 | Wife | — | South Carolina |
| 22 | Mary Johnson | 15 | Step daughter | — | South Carolina |
| 23 | Samuel Johnson | 13 | Step son | — | South Carolina |
| 24 | John R. Johnson | 13 | Step son | — | South Carolina |
| 25 | Frank Graves | 30 | Lodger | Laborer | South Carolina |
| 26 | Jessie Graves | 23 | Lodger's wife | — | South Carolina |
| 27 | Lois Graves | 3 | Lodger's daughter | — | Maryland |
| 28 | Willie B. Graves | 2 | Lodger's son | — | Maryland |
| 29 | Bobbie Graves | 0 | Lodger's daughter | — | Maryland |
| 30 | James Thomas | 56 | Head | Laborer | Delaware |
| 31 | Wilbert Thomas | 23 | Son | Laborer | Maryland |
| 32 | James Thomas THIS PERSON | 21 | Son | Laborer | Maryland |
| 33 | Hattie Thomas | 15 | Daughter | — | Maryland |
| 34 | Vernell Thomas | 14 | Daughter | — | Maryland |
| 35 | Helen Thomas | 12 | Daughter | — | Maryland |
| 36 | Susie Valentine | 38 | Head | — | Virginia |
| 37 | Wilbert Valentine | 18 | Son | — | Virginia |
| 38 | Elsie Tater | 26 | Daughter | — | Virginia |
| 39 | John Goode | 39 | Lodger | Laborer | Virginia |
| 40 | Irene Goode | 29 | Wife | — | Maryland |
Pedigree Summary
James + 4 siblings
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)