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Mabel Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Marion-County, Indiana
Our Model Tree links this Mabel Thomas across the 1920, 1930 and 1940 US Censuses in Marion-County, Indiana (XGBoost, ~Confirmed) — first a spouse (b.~1890), then head of a 3-person household.
Age 50
b. ~1890
Female
Spouse
Born: Indiana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Indiana |
| Surname | Thomas |
| Given Name | Mabel |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Highest Grade | C-1 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Indianapolis |
| Est. Birth Year | ~1890 |
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 Mabel | Age | Birth yr |
|---|---|---|---|---|
| Carmen Thomas | Head | — | 54 | ~1886 |
| Mabel Thomas | Spouse | — | 50 | ~1890 |
| Carmen Thomas | Son | — | 17 | ~1923 |
Census Appearances
1920
Marion, Indiana
Spouse, age 29
Marion, Indiana · implied b. ~1891 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Mabel E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Marion, Indiana
Other, age 40
Marion, Indiana · implied b. ~1890 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Mabel E. |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Indiana |
| Age at First Marriage | 28 |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Marion-County, Indiana
Spouse, age 50
Marion-County, Indiana · implied b. ~1890 — 3 household members
| Surname | Thomas |
| Given Name | Mabel |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Highest Grade | C-1 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 Mabel Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mabel Thomas
Spouse · 1940 · age 50 · b. ~1890 · Indiana
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Marion-County, Indiana
Open full size
1940 US Federal Census — Marion-County, Indiana
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-01131-00636)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Christopher T. Stevenson | 49 | Head | Buyer | Scotland |
| 42 | Ann Stevenson | 48 | Wife | — | Indiana |
| 43 | Jean Stevenson | 13 | Daughter | — | Indiana |
| 44 | Edward Heidt | 42 | Head | Clerk | New York |
| 45 | Sarah Heidt | 39 | Wife | — | New York |
| 46 | Mildred Heidt | 18 | Daughter | — | New York |
| 47 | Elizabeth Heidt | 62 | Mother | — | New York |
| 48 | John Mccullough | 25 | Head | Dentist | Minnesota |
| 49 | Helen Mccullough | 27 | Wife | Stenographer | Indiana |
| 50 | Ada L. Bradley | 52 | Mother-in-law | — | Canada-English |
| 51 | Elmer Jefferson | 54 | Head | Salesman | Ohio |
| 52 | Emma Jefferson | 55 | Wife | — | Ohio |
| 53 | Edgar Jefferson | 21 | Son | Repairman | Ohio |
| 54 | Carmen Thomas | 54 | Head | Clerk | Indiana |
| 55 | Mabel Thomas THIS PERSON | 50 | Wife | — | Indiana |
| 56 | Carmen V. Thomas | 17 | Son | X-Ray Technician | Indiana |
| 57 | Richard Saunders | 20 | Head | Salesman | England |
| 58 | Elizabeth Saunders | 19 | Wife | — | Indiana |
| 59 | Harley Holwerda | 43 | Head | Salesman | Indiana |
| 60 | Loa Holwerda | 40 | Wife | Clerk | Missouri |
| 61 | Sharon Holwerda | 7 | Daughter | — | Indiana |
| 62 | Doris Spicer | 40 | Housekeeper | Housekeeper | Indiana |
| 63 | Orville L. Campbell | 50 | Head | Painter | Indiana |
| 64 | Mary Campbell | 33 | Wife | Saleslady | Indiana |
| 65 | Betty Campbell | 14 | Daughter | — | Indiana |
| 66 | Harold H. Pumphrey | 41 | Head | Accountant | Indiana |
| 67 | Arrietta Pumphrey | 35 | Wife | Saleslady | Michigan |
| 68 | Richard Pumphrey | 12 | Son | — | Indiana |
| 69 | Herbert C. Krauch | 40 | Head | Lawyer | Illinois |
| 70 | Lillian Krauch | 38 | Wife | Deputy Assessor | Illinois |
| 71 | Herbert C. Jr. Krauch | 15 | Son | — | Indiana |
| 72 | Jo Ann Krauch | 14 | Daughter | — | Indiana |
| 73 | William R. Thomas | 42 | Head | Agent | Indiana |
| 74 | Catherine Thomas | 40 | Wife | — | Indiana |
| 75 | Billy R. Thomas | 11 | Son | — | Indiana |
| 76 | Mary Jane Thomas | 1 | Daughter | — | Indiana |
| 77 | Alma Robinson | 49 | Head | — | Indiana |
| 78 | Betty Robinson | 22 | Daughter | Stenographer | Indiana |
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)