FT
Francis Thomas — 1940 US Census Record
Model Tree available1940 United States Federal Census · Carroll-County, Maryland
Our Model Tree links this Francis Thomas across the 1920, 1930 and 1940 US Censuses in Carroll-County, Maryland (XGBoost, ~Confirmed), with identified parents W & Anna — first a head (b.~1912), then head of a 4-person household.
Age 28
b. ~1912
Male
Head
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Carroll-County, Maryland |
| Surname | Thomas |
| Given Name | Francis W. B. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Westminster |
| 1935 Residence (County) | Carroll |
| Additional Details | |
| Occupation | clerk |
| Industry | dist. insurance company |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2668 |
| Highest Grade | C 3 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Clerk |
| Township / Ward | Westminster |
| Est. Birth Year | ~1912 |
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 Francis | Age | Birth yr |
|---|---|---|---|---|
| Priscilla Thomas | Spouse | — | 22 | ~1918 |
| Priscilla Thomas | Daughter | — | 3 | ~1937 |
| Francis Thomas | Son | — | 1 | ~1939 |
| Francis Thomas | Head | — | 28 | ~1912 |
Census Appearances
1920
Carroll, Maryland
Son, age 8
Carroll, Maryland · implied b. ~1912 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Francis M B |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Carroll, Maryland
Son, age 18
Carroll, Maryland · implied b. ~1912 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Francis H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| 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
Carroll-County, Maryland
Head, age 28
Carroll-County, Maryland · implied b. ~1912 — 4 household members
| Surname | Thomas |
| Given Name | Francis W. B. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Westminster |
| 1935 Residence (County) | Carroll |
| Occupation | clerk |
| Industry | dist. insurance company |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2668 |
| Highest Grade | C 3 |
| 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 Francis Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father W Thomas (~0.92 confidence) and mother Anna Thomas (~0.60 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.76
Father
W Thomas
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Anna Thomas
b. ~1900
Source mother
● Household
· direct · ~0.6
This person
Anchor record
Francis Thomas
Head · 1940 · age 28 · b. ~1912 · 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 — Carroll-County, Maryland
Open full size
1940 US Federal Census — Carroll-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01544-00551)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Dianne J. Rutan | 5 | daughter | — | New Jersey |
| 42 | Rosemary Rutan | 4 | daughter | — | New Jersey |
| 43 | Rosemary Rutan | 17 | sister-in-law | Waitress | Virginia |
| 44 | George J. Altenburger | 35 | Head | Salesman | Ohio |
| 45 | Dorothy M. Altenburger | 34 | wife | Salesman | Michigan |
| 46 | Joyce A. Altenburger | 8 | daughter | — | Michigan |
| 47 | George J. Altenburger | 5 | son | — | Michigan |
| 48 | Thomas J. Altenburger | 1 | son | — | Michigan |
| 49 | Martin H. Farrell | 35 | Head | Manager | Maryland |
| 50 | Virginia B. Farrell | 36 | wife | — | Maryland |
| 51 | Richard M. Farrell | 6 | son | — | Maryland |
| 52 | John L. Gray | 38 | Head | Division Manager | Kentucky |
| 53 | Lois F. Gray | 29 | wife | Division Manager | Kentucky |
| 54 | B. Harrison Gray | 51 | Head | Mechanic | Maryland |
| 55 | Ninnian H. Gray | 50 | wife | — | Maryland |
| 56 | Evelyn N. Gray | 21 | daughter | Stenographer | Maryland |
| 57 | Lester Gray | 20 | son | Clerk | Maryland |
| 58 | Robert E. Gray | 17 | son | Floor Boy | Maryland |
| 59 | Betty L. Gray | 12 | daughter | — | Maryland |
| 60 | Francis W. B. Thomas THIS PERSON | 28 | Head | Clerk | Maryland |
| 61 | Priscilla H. Thomas | 22 | wife | — | Maryland |
| 62 | Priscilla A. Thomas | 3 | daughter | — | Maryland |
| 63 | Francis W. B. Jr. Thomas | 1 | son | — | Maryland |
| 64 | Charles W. Schaffer | 41 | Head | Manager | Maryland |
| 65 | Mary L. Schaffer | 38 | wife | — | Maryland |
| 66 | Mary E. Schaffer | 7 | daughter | — | Maryland |
| 67 | Clara Schaffer | 61 | mother | — | Maryland |
| 68 | William E. Cormeny | 43 | Head | Freight Solicitor | Virginia |
| 69 | Helen D. Cormeny | 40 | wife | Saleslady | Virginia |
| 70 | Elizabeth D. Cormeny | 16 | daughter | — | Virginia |
| 71 | Mary H. Cormeny | 14 | daughter | — | Virginia |
| 72 | William A. Cormeny | 12 | son | — | Maryland |
| 73 | Charles R. Omer | 34 | Head | Veterinarian | Kansas |
| 74 | Jessie M. Omer | 33 | wife | — | Kansas |
| 75 | Robbie D. Omer | 5 | son | — | Iowa |
| 76 | Alfred C. Waters | 49 | Head | — | Maryland |
| 77 | Edith S. Waters | 46 | wife | — | Maryland |
| 78 | Edith Lucia Waters | 17 | daughter | — | Maryland |
| 79 | Robert E. G. Jr. Hutchins | 24 | Head | Salesman | Maryland |
| 80 | Kathleen R. Hutchins | 25 | wife | — | Florida |
Pedigree Summary
Francis
Gen 1 · 2 parents
~0.76
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)