FT
Frank Thomas — 1940 US Census Record
Model Tree available1940 United States Federal Census · Washington-County, Maryland
Our Model Tree links this Frank Thomas across the 1920, 1930 and 1940 US Censuses in Washington-County, Maryland (XGBoost, ~Confirmed), with identified parents Daniel — first a head (b.~1879), then head of a 3-person household.
Age 61
b. ~1879
Male
Head
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Washington-County, Maryland |
| Surname | Thomas |
| Given Name | Frank H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | ELECTION DISTRICT 10 |
| 1935 Residence (County) | Washington |
| Additional Details | |
| Occupation | Laborer |
| Industry | Rail Road track |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 288 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Laborer |
| Township / Ward | Election District 10 |
| Est. Birth Year | ~1879 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Frank | Age | Birth yr |
|---|---|---|---|---|
| Ethel Thomas | Daughter | — | 24 | ~1916 |
| Frank Thomas | Head | — | 61 | ~1879 |
| Lucinda Thomas | Spouse | — | 50 | ~1890 |
Census Appearances
1920
Washington, Maryland
Son, age 41
Washington, Maryland · implied b. ~1879 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Franklin M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Merchant |
| Industry | Fertilizer |
| Class of Worker | Emp |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Washington, Maryland
Head, age 51
Washington, Maryland · implied b. ~1879 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Franklin H |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 33 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Labourer |
| Industry | Steam Rail Road |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 1500 |
| Veteran | No |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Washington-County, Maryland
Head, age 61
Washington-County, Maryland · implied b. ~1879 — 3 household members
| Surname | Thomas |
| Given Name | Frank H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | ELECTION DISTRICT 10 |
| 1935 Residence (County) | Washington |
| Occupation | Laborer |
| Industry | Rail Road track |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 288 |
| Highest Grade | No 6 |
| 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 Frank Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Daniel Thomas (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Daniel Thomas
b. ~1851
Source father
● Household
· direct · ~0.92
This person
Anchor record
Frank Thomas
Head · 1940 · age 61 · b. ~1879 · 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 — Washington-County, Maryland
Open full size
1940 US Federal Census — Washington-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01561-00021)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Frank H. Thomas THIS PERSON | 61 | Head | Laborer | Maryland |
| 42 | Lucinda K. Thomas | 50 | Wife | — | Maryland |
| 43 | Ethel N. Thomas | 24 | Daughter | Stenographer | Maryland |
| 44 | Raymond R. Penner | 29 | Head | Laborer | Maryland |
| 45 | Doris V. Penner | 19 | Wife | — | Maryland |
| 46 | Richard G. Penner | 1 | Son | — | Maryland |
| 47 | Jerome L. Mose | 28 | Head | Laborer | Maryland |
| 48 | Lydia E. Mose | 20 | Wife | — | Maryland |
| 49 | Terry L. Mose | 0 | Son | — | Maryland |
| 50 | Mary J. Penner | 66 | Head | — | Maryland |
| 51 | Robert Penner | 27 | Son | Laborer | Maryland |
| 52 | Martha R. Penner | 19 | Daughter-in-law | — | Maryland |
| 53 | Robert L. Penner | 0 | Grandson | — | Maryland |
| 54 | Vincent R. De Laney | 38 | Head | Foreman | Maryland |
| 55 | Mary K. De Laney | 39 | Wife | — | Maryland |
| 56 | Edward D. De Laney | 18 | Son | — | Maryland |
| 57 | Betty De Laney | 16 | Daughter | — | Maryland |
| 58 | Agnes V. De Laney | 14 | Daughter | — | Maryland |
| 59 | John W. Cox | 74 | Head | Superintendent | Maryland |
| 60 | Lena O. Cox | 69 | Wife | — | Maryland |
| 61 | John W. Eader | 66 | Head | — | Maryland |
| 62 | Della S. Eader | 57 | Wife | — | Maryland |
| 63 | John F. Eader | 22 | Son | Weaver | Maryland |
| 64 | James L. Eader | 17 | Son | — | Maryland |
| 65 | Silas W. Cliffe | 36 | Head | Trimming Cutter | Maryland |
| 66 | Lydia E. Cliffe | 37 | Wife | — | Maryland |
| 67 | Bobbie S. Cliffe | 12 | Son | — | Maryland |
| 68 | Betty S. Cliffe | 9 | Daughter | — | Maryland |
| 69 | Shirley W. Cliffe | 5 | Son | — | Maryland |
| 70 | Hazel M. Fox | 35 | Head | — | Maryland |
| 71 | Harold E. Lewis | 36 | Head | Precipitator | Maryland |
| 72 | Goldie L. Lewis | 34 | Wife | — | Maryland |
| 73 | Lenora Lewis | 11 | Daughter | — | Maryland |
| 74 | Otho E. Churchey | 46 | Head | Stone Mason Helper | Maryland |
| 75 | Margaret E. Churchey | 32 | Wife | — | West Virginia |
| 76 | Calvin M. Churchey | 12 | Son | — | Maryland |
| 77 | Harold E. Churchey | 12 | Son | — | Maryland |
| 78 | Paul W. Churchey | 9 | Son | — | Maryland |
| 79 | George Churchey | 26 | Head | Laborer | Maryland |
| 80 | Anna B. Churchey | 26 | Wife | — | Maryland |
Pedigree Summary
Frank
Gen 1 · 1 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)