TA
Thomas Allen — 1940 US Census Record
Model Tree available1940 United States Federal Census · Baltimore-County, Maryland
Our Model Tree links this Thomas Allen across the 1920, 1930 and 1940 US Censuses in Baltimore-County, Maryland (XGBoost, ~Confirmed), with identified parents Ethel & Margaret — first a son (b.~1920), then head of a 4-person household.
Age 20
b. ~1920
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-County, Maryland |
| Surname | Allen |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Cockeysville |
| 1935 Residence (County) | Baltimore |
| Additional Details | |
| Occupation | Laborer |
| Industry | Machine Shop |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 350 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Laborer |
| Township / Ward | Cockeysville |
| Est. Birth Year | ~1920 |
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 |
|---|---|---|---|---|
| Walter Allen | Head | — | 56 | ~1884 |
| John Allen | Son | — | 8 | ~1932 |
| Thomas Allen | Son | — | 20 | ~1920 |
| Ethel Allen | Spouse | — | 58 | ~1882 |
Census Appearances
1920
Baltimore, Maryland
Son, age
Baltimore, Maryland · implied b. ~1920 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Allen |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | New York |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Son, age 10
Baltimore, Maryland · implied b. ~1920 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Allen |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | New York |
| Mother's Birthplace | Maryland |
| Occupation | none |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-County, Maryland
Son, age 20
Baltimore-County, Maryland · implied b. ~1920 — 4 household members
| Surname | Allen |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Cockeysville |
| 1935 Residence (County) | Baltimore |
| Occupation | Laborer |
| Industry | Machine Shop |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 350 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| 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 Thomas Allen across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Ethel Allen (~0.92 confidence) and mother Margaret Allen (~0.92 confidence) and father Walter Allen (~0.92 confidence) and father Walter Allen (~0.92 confidence) and father Thomas Allen (~0.92 confidence) and mother Ethel Allen (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Ethel Allen
b. ~1882
Source mother
● Household
· direct · ~0.92
Mother
Margaret Allen
b. ~1883
Source mother
● Household
· direct · ~0.92
Father
Walter Allen
b. ~1884
Source father
● Household
· direct · ~0.92
Father
Walter Allen
b. ~1884
Source father
● Household
· direct · ~0.92
Father
Thomas Allen
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Ethel Allen
b. ~1901
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Allen
Son · 1940 · age 20 · b. ~1920 · Maryland
★ You are viewing this record
Sibling
John Allen
Sibling · 1940 · age 8
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-t0627-01504-00405)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Adolph Plock | 43 | Head | Manager | Germany |
| 2 | Helen Plock | 29 | Wife | — | Austria |
| 3 | John Plock | 2 | Son | — | Maryland |
| 4 | Elizabeth Plock | 1 | Daughter | — | Maryland |
| 5 | Bertha Raab | 39 | Sister-in-law | Nurse | Austria |
| 6 | Hellmuth Raab | 12 | Nephew | — | Austria |
| 7 | John Lennox | 24 | Lodger | Laborer | Scotland |
| 8 | Gilbert Dorn | 29 | Head | Mechanic | Maryland |
| 9 | Gretta Dorn | 30 | Wife | — | Maryland |
| 10 | Mary Dorn | 6 | Daughter | — | Maryland |
| 11 | Margaret Dorn | 3 | Daughter | — | Maryland |
| 12 | Joseph Wilhelm | 47 | Head | Mechanic | Maryland |
| 13 | Goldie Wilhelm | 51 | Wife | — | Maryland |
| 14 | Robert Calvert | 71 | Head | Garage | Maryland |
| 15 | Rachel Calvert | 41 | Daughter | — | Maryland |
| 16 | David Mcclunon | 29 | Head | Machinist | Penna |
| 17 | Elsie Mcclunon | 28 | Wife | — | Maryland |
| 18 | Philip Mcclunon | 7 | Son | — | Maryland |
| 19 | Shirley Mcclunon | 4 | Daughter | — | Maryland |
| 20 | Edith Howard | 42 | Head | — | Maryland |
| 21 | Josephine Howard | 20 | Wife | Operator | Maryland |
| 22 | Kenneth Howard | 14 | Son | — | Maryland |
| 23 | Ernest Pape | 22 | Brother-in-law | Laborer | Maryland |
| 24 | Carolyn Pape | 20 | Sister-in-law | — | Maryland |
| 25 | Ernest Pape | 2 | Nephew | — | Maryland |
| 26 | Josephine Morton | 84 | Mother-in-law | Income | Maryland |
| 27 | Arthur Musson | 41 | Head | Laborer | New York |
| 28 | Helen Musson | 27 | Wife | — | Maryland |
| 29 | Margaret Bergman | 70 | Mother-in-law | Income | Maryland |
| 30 | Nellie Chilcoat | 65 | Lodger | — | Maryland |
| 31 | Walter Allen | 56 | Head | Operator | Maryland |
| 32 | Ethel Allen | 58 | Wife | — | Maryland |
| 33 | Thomas Allen THIS PERSON | 20 | Son | Laborer | Maryland |
| 34 | John Allen | 8 | Son | — | Maryland |
| 35 | Douglas Bennett | 69 | Head | Gas Elect Co | New York |
| 36 | Thomas Bennett | 36 | Head | Laborer | New York |
| 37 | Anna Bennett | 35 | Wife | — | Hungary |
| 38 | Anna C. Bennett | 2 | Daughter | — | Maryland |
| 39 | Catherine Bennett | 17 | Daughter | Clerk | Maryland |
| 40 | Mary Benson | 86 | Head | Income | Maryland |
Pedigree Summary
Thomas + 1 sibling
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)