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Thomas Boyd — 1940 US Census Record
Model Tree available1940 United States Federal Census · St.-Louis-County, Missouri
Our Model Tree links this Thomas Boyd across the 1920, 1930 and 1940 US Censuses in St.-Louis-County, Missouri (XGBoost, ~Confirmed), with identified parents Robert & Anna — first a son (b.~1918), then head of a 4-person household.
Age 22
b. ~1918
Male
Son
Born: Mississippi
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Louis-County, Missouri |
| Surname | Boyd |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Mississippi |
| 1935 Residence (City) | Brentwood City |
| 1935 Residence (County) | St Louis |
| Additional Details | |
| Hours Worked | 0 |
| Highest Grade | C 3 |
| 1935 Residence | Same House |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
| Township / Ward | Brentwood City |
| Est. Birth Year | ~1918 |
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 Thomas | Age | Birth yr |
|---|---|---|---|---|
| Robert Boyd | Head | — | 56 | ~1884 |
| Anna Boyd | Spouse | — | 54 | ~1886 |
| Langford Boyd | Son | — | 26 | ~1914 |
| Thomas Boyd | Son | — | 22 | ~1918 |
Census Appearances
1920
St Louis, …
Son, age 3
St Louis, Missouri · implied b. ~1917 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Boyd |
| Given Name | Thelma |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Mississippi |
| Father's Birthplace | Mississippi |
| Mother's Birthplace | Mississippi |
| Mother Tongue | English |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
1930
St Louis, …
Son, age 13
St Louis, Missouri · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Boyd |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Mississippi |
| Father's Birthplace | Mississippi |
| Mother's Birthplace | Missouri |
| Can Read/Write | Yes |
| Home Value / Rent | No |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
1940
St.-Louis-County, Missouri
Son, age 22
St.-Louis-County, Missouri · implied b. ~1918 — 4 household members
| Surname | Boyd |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Mississippi |
| 1935 Residence (City) | Brentwood City |
| 1935 Residence (County) | St Louis |
| Hours Worked | 0 |
| Highest Grade | C 3 |
| 1935 Residence | Same House |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
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 Thomas Boyd across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Robert Boyd (~0.92 confidence) and mother Anna Boyd (~0.92 confidence) and mother Anna Boyd (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Robert Boyd
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Anna Boyd
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Anna Boyd
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Boyd
Son · 1940 · age 22 · b. ~1918 · Missouri
★ You are viewing this record
Sibling
Langford Boyd
Sibling · 1940 · age 26
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 — St.-Louis-County, Missouri
Open full size
1940 US Federal Census — St.-Louis-County, Missouri
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02150-00260)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Loury Thornhill | 11 | Daughter | — | Missouri |
| 42 | Charles Thornhill | 5 | Son | — | Missouri |
| 43 | Emma Shelton | 47 | Head | — | Mississippi |
| 44 | Wather Shelton | 50 | Brother | Ditch Digger | Mississippi |
| 45 | Ellen Boyd | 11 | Child | — | Missouri |
| 46 | William Callan | 71 | Head | — | Tennessee |
| 47 | Molly Callan | 60 | Wife | — | Tennessee |
| 48 | Eli St James | 56 | Head | Laborer | Missouri |
| 49 | Lizzi St James | 40 | Wife | — | Missouri |
| 50 | Void Void | None | VOID | — | VOID |
| 51 | Robert Boyd | 56 | Head | Stone Mason | Mississippi |
| 52 | Anna Boyd | 54 | Wife | — | Missouri |
| 53 | Langford Boyd | 26 | Son | — | Mississippi |
| 54 | Thomas Boyd THIS PERSON | 22 | Son | — | Mississippi |
| 55 | Elnora Jackson | 29 | Head | Maid | Mississippi |
| 56 | Wallace Jackson | 12 | Son | — | Mississippi |
| 57 | Sherman Green | 62 | Head | Laborer | Louisiana |
| 58 | Janie Green | 40 | Wife | — | Kentucky |
| 59 | Sherman Green | 2 | Son | — | Missouri |
| 60 | Abraham Green | 0 | Son | — | Missouri |
| 61 | Minerva Green | 0 | Daughter | — | Missouri |
| 62 | Louise Carter | 9 | Step Daughter | — | Missouri |
| 63 | Thomas Carter | 10 | Step Son | — | Missouri |
| 64 | William Frank | 35 | Head | Caretaker | Missouri |
| 65 | Jo Ann Frank | 33 | Wife | — | Missouri |
| 66 | Mac Hamilton | 67 | Head | — | Missouri |
| 67 | Jesse Hamilton | 60 | Wife | Maid | Missouri |
| 68 | Bill G. Schaffer | 40 | Head | Caretaker | Missouri |
| 69 | Louise Schaffer | 39 | Wife | — | Mississippi |
| 70 | Bill Schaffer | 14 | Son | — | Missouri |
| 71 | George Schaffer | 14 | Son | — | Missouri |
| 72 | Frank Schaffer | 11 | Son | — | Missouri |
| 73 | Clarence Coons | 50 | Head | Tile Moulder | Missouri |
| 74 | Eva Coons | 54 | Wife | — | Missouri |
| 75 | Clarence Coons | 21 | Son | Laborer | Missouri |
| 76 | Robert Coons | 17 | Son | Hand Man | Missouri |
| 77 | Frank Bandara | 46 | Head | Owner | Italy |
| 78 | Josephine Bandara | 40 | Wife | — | Italy |
| 79 | John Bandara | 18 | Son | Dishwasher | Italy |
| 80 | Anna Bandara | 10 | Daughter | — | Missouri |
Pedigree Summary
Thomas + 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)