FT
Francis Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Lucas-County, Ohio
Our Model Tree links this Francis Thomas across the 1930 and 1940 US Censuses in Lucas-County, Ohio (XGBoost, ~Confirmed) — first a daughter (b.~1918), then head of a 10-person household.
Age 22
b. ~1918
Female
Daughter
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lucas-County, Ohio |
| Surname | Thomas |
| Given Name | Francis |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Toledo |
| 1935 Residence (County) | Lucas |
| Additional Details | |
| Occupation | New Worker |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | New Worker |
| Township / Ward | Toledo |
| 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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Francis | Age | Birth yr |
|---|---|---|---|---|
| Francis Thomas | Daughter | — | 22 | ~1918 |
| Dorothy Thomas | Head | — | 38 | ~1902 |
| Barbara Thomas | Daughter | — | 3 | ~1937 |
| Doris Thomas | Daughter | — | 17 | ~1923 |
| Earl Thomas | Son | — | 10 | ~1930 |
| Helen Thomas | Daughter | — | 19 | ~1921 |
| Audrey Thomas | Daughter | — | 7 | ~1933 |
| Hugh Thomas | Son | — | 8 | ~1932 |
| Roy Thomas | Son | — | 14 | ~1926 |
| Marcella Thomas | Daughter | — | 12 | ~1928 |
Census Appearances
1930
Lucas, Ohio
Daughter, age 12
Lucas, Ohio · implied b. ~1918 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Frances |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Florida |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Lucas-County, Ohio
Daughter, age 22
Lucas-County, Ohio · implied b. ~1918 — 10 household members
| Surname | Thomas |
| Given Name | Francis |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Toledo |
| 1935 Residence (County) | Lucas |
| Occupation | New Worker |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Francis Thomas
Daughter · 1940 · age 22 · b. ~1918 · Ohio
★ You are viewing this record
Sibling
Barbara Thomas
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hugh Thomas
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marcella Thomas
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Roy Thomas
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Thomas
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Earl Thomas
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Audrey Thomas
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Doris Thomas
Sibling · 1940 · age 17
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 — Lucas-County, Ohio
Open full size
1940 US Federal Census — Lucas-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03260-00331)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary Oatker | 40 | Wife | Housewife | Kentucky |
| 2 | Eugene Simmons | 40 | Head | Laborer | Kentucky |
| 3 | Elizabeth Simmons | 20 | Daughter | Housework | New York |
| 4 | James Houston | 29 | Head | Mechanic | Tennessee |
| 5 | Mary Houston | 20 | Wife | Housewife | Ohio |
| 6 | Walter Houston | 5 | Son | — | Ohio |
| 7 | Robert Houston | 3 | Son | — | Ohio |
| 8 | Margie Houston | 1 | Daughter | — | Ohio |
| 9 | Edward Houston | 32 | Brother | Mechanic | Tennessee |
| 10 | Gladys Houston | 26 | Wife | Housewife | Ohio |
| 11 | Henry Halloway | 55 | Head | Laborer | Tennessee |
| 12 | Lettie Halloway | 55 | Wife | Housewife | Alabama |
| 13 | Francis Koster | 42 | Head | Porter | Tennessee |
| 14 | Bertha Koster | 34 | Wife | Housewife | Mississippi |
| 15 | Stella E Koster | 16 | Daughter | Student | Ohio |
| 16 | Arthur Johnson | 46 | Head | Janitor | Ohio |
| 17 | Francis Johnson | 41 | Wife | Housewife | Ohio |
| 18 | Bradley Belcher | 40 | Head | Mechanic | N. Carolina |
| 19 | Cora Belcher | 29 | Wife | Nurse | Ohio |
| 20 | Frank Smith | 28 | S.B. | Bell Hop | Ohio |
| 21 | Mary Belcher | 28 | Niece | Maid | N. Carolina |
| 22 | Ernest Carlisle | 28 | Head | Laborer | Georgia |
| 23 | Annie Carlisle | 28 | Wife | Housewife | Georgia |
| 24 | Frank Right | 30 | Head | Laborer | Texas |
| 25 | Juanita Right | 23 | Wife | Housewife | Texas |
| 26 | James Right | 5 | Son | — | Texas |
| 27 | Dorothy Thomas | 38 | Head | Housewife | Florida |
| 28 | Francis Thomas THIS PERSON | 22 | Daughter | New Worker | Michigan |
| 29 | Helen Thomas | 19 | Daughter | New Worker | Pennsylvania |
| 30 | Doris Thomas | 17 | Daughter | Student | Pennsylvania |
| 31 | Roy Thomas | 14 | Son | Student | Pennsylvania |
| 32 | Marcella Thomas | 12 | Daughter | Student | Ohio |
| 33 | Earl Thomas | 10 | Son | Student | Ohio |
| 34 | Hugh Thomas | 8 | Son | Student | Ohio |
| 35 | Audrey Thomas | 7 | Daughter | Student | Ohio |
| 36 | Barbara Thomas | 3 | Daughter | — | Ohio |
| 37 | Walter Penn | 66 | Head | — | Virginia |
| 38 | Myrtle Penn | 50 | Wife | Maid | Ohio |
| 39 | Scott Hackley | 27 | Son | Porter | Ohio |
| 40 | Barbara Hackley | 18 | Daughter in law | Housewife | Michigan |
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)