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Lillian Thomas — 1940 US Census Record
Model Tree available1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this Lillian Thomas across the 1920, 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed), with identified parents Adam & Adam — first a daughter (b.~1916), then head of a 2-person household.
Age 24
b. ~1916
Female
Daughter
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Thomas |
| Given Name | Lillian A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore city |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Occupation | Secretary |
| Industry | Legal profession |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 900 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Secretary |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1916 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Lillian | Age | Birth yr |
|---|---|---|---|---|
| Lillian Thomas | Daughter | — | 24 | ~1916 |
| Ann Thomas | Head | — | 50 | ~1890 |
Census Appearances
1920
Baltimore, Maryland
Daughter, age 5
Baltimore, Maryland · implied b. ~1915 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Lillian |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Daughter, age 15
Baltimore, Maryland · implied b. ~1915 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Lillian |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Daughter, age 24
Baltimore-City-County, Maryland · implied b. ~1916 — 2 household members
| Surname | Thomas |
| Given Name | Lillian A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore city |
| 1935 Residence (County) | Baltimore City |
| Occupation | Secretary |
| Industry | Legal profession |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 900 |
| Highest Grade | Hs 4 |
| 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 Lillian Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Adam Thomas (~0.92 confidence) and father Adam Thomas (~0.92 confidence) and mother Margaret Thomas (~0.92 confidence) and mother Ann Thomas (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Adam Thomas
b. ~1873
Source father
● Household
· direct · ~0.92
Father
Adam Thomas
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Margaret Thomas
b. ~1886
Source mother
● Household
· direct · ~0.92
Mother
Ann Thomas
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Lillian Thomas
Daughter · 1940 · age 24 · b. ~1916 · Maryland
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Baltimore-City-County, Maryland
Open full size
1940 US Federal Census — Baltimore-City-County, Maryland
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01542-00409)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Sara F. Hemming | 53 | Head | — | N. Carolina |
| 2 | Ernie Jr. Hemming | 26 | Son | — | Maryland |
| 3 | Elizabeth K. Hemming | 19 | Daughter | — | Maryland |
| 4 | Earl F. Johnson | 38 | Head | Vice President | Maryland |
| 5 | Kathleen S. Johnson | 37 | Wife | — | Maryland |
| 6 | Lucy M. Vailbracht | 52 | Head | — | Maryland |
| 7 | Mary E. Meyer | 66 | Sister | — | Maryland |
| 8 | Emma Meyer | 57 | Sister | Secretary | Maryland |
| 9 | Augustus Stanley M. Moser | 29 | Head | Accountant | Maryland |
| 10 | Audrey S. Moser | 26 | Wife | Secretary | Maryland |
| 11 | Harry Hodges | 71 | Head | Treasurer | Maryland |
| 12 | Clara E. Hodges | 67 | Wife | — | Maryland |
| 13 | Lillian E. Hodges | 43 | Daughter | School Teacher | Maryland |
| 14 | H. Beale Rollins | 41 | Head | Attorney | Maryland |
| 15 | Mary E. Rollins | 41 | Wife | — | Maryland |
| 16 | William J. Blair | 44 | Head | Resident Comptroller | Pennsylvania |
| 17 | Grace F. Blair | 40 | Wife | — | Canada (Eng) |
| 18 | Milletta F. Blair | 12 | Daughter | — | Michigan |
| 19 | Charles E. Thrasher | 48 | Head | Freight Agent | Maryland |
| 20 | Melissa M. Thrasher | 48 | Wife | — | Ohio |
| 21 | Charles E. Jr. Thrasher | 21 | Son | Jr. Clerk-Meter | Ohio |
| 22 | John A. Ramsey | 68 | Head | Salesman | Maryland |
| 23 | Lillian E. Ramsey | 58 | Wife | — | Maryland |
| 24 | Jacquelyn Ramsey | 17 | Daughter | — | Maryland |
| 25 | John E. Yagle | 53 | Head | Accountant | Maryland |
| 26 | Nellie E. Yagle | 53 | Wife | Clerk | Maryland |
| 27 | Edwin J. Knight | 33 | Head | Accountant | Maryland |
| 28 | Dorothy J. Knight | 31 | Wife | — | Wash. D.C. |
| 29 | Vernon E. Smith | 38 | Head | Accountant | Maryland |
| 30 | Irene M. Smith | 35 | Wife | — | Pennsylvania |
| 31 | Robert L. Smith | 3 | Son | — | Maryland |
| 32 | James Jr. Davis | 44 | Head | Traffic Manager | Maryland |
| 33 | Edith M. Davis | 47 | Wife | — | Maryland |
| 34 | Julia E. Davis | 71 | Mother | — | Virginia |
| 35 | Philip B. Reineman | 48 | Head | Accountant | Maryland |
| 36 | Margaret H. Reineman | 43 | Wife | — | Maryland |
| 37 | Grace Reineman | 17 | Daughter | — | Maryland |
| 38 | Ann E. Thomas | 50 | Head | Saleswoman | Maryland |
| 39 | Lillian A. Thomas THIS PERSON | 24 | Daughter | Secretary | Maryland |
Pedigree Summary
Lillian
Gen 1 · 4 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)