JT
Jennie Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Buena-Vista-County, Iowa
Our Model Tree links this Jennie Thomas across the 1920, 1930 and 1940 US Censuses in Buena-Vista-County, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1879), then head of a 5-person household.
Age 61
b. ~1879
Female
Spouse
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Buena-Vista-County, Iowa |
| Surname | Thomas |
| Given Name | Jennie |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Lee Township |
| 1935 Residence (County) | Buena Vista |
| Additional Details | |
| Industry | H |
| Highest Grade | H 3 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Lee Township |
| 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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Jennie | Age | Birth yr |
|---|---|---|---|---|
| Elna Gibson | Other | — | 13 | ~1927 |
| Jennie Thomas | Spouse | — | 61 | ~1879 |
| Mildred Gibson | Daughter | — | 37 | ~1903 |
| E Thomas | Head | — | 62 | ~1878 |
| Virginia Gibson | Other | — | 7 | ~1933 |
Census Appearances
1920
Buena Vista, …
Spouse, age 40
Buena Vista, Iowa · implied b. ~1880 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Jennie |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Iowa |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Buena Vista, …
Spouse, age 50
Buena Vista, Iowa · implied b. ~1880 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Jennie |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 19 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Buena-Vista-County, Iowa
Spouse, age 61
Buena-Vista-County, Iowa · implied b. ~1879 — 5 household members
| Surname | Thomas |
| Given Name | Jennie |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Lee Township |
| 1935 Residence (County) | Buena Vista |
| Industry | H |
| Highest Grade | H 3 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Jennie 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
Jennie Thomas
Spouse · 1940 · age 61 · b. ~1879 · Iowa
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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 — Buena-Vista-County, Iowa
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1940 US Federal Census — Buena-Vista-County, Iowa
Page Contents
37 people indexed on this census page (nara:1940:m-t0627-01143-00188)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Elizabeth Findling | 34 | Wife | — | Iowa |
| 2 | Patricia Findling | 9 | Daughter | — | Iowa |
| 3 | Richard Findling | 7 | Son | — | Iowa |
| 4 | George Mowry | 44 | Head | Farmer | Iowa |
| 5 | Lillian Mowry | 37 | Wife | — | Iowa |
| 6 | George J. Mowry | 20 | Son | Farmer | Iowa |
| 7 | Phyllis Mowry | 17 | Daughter | — | Iowa |
| 8 | Dick Mowry | 16 | Son | Laborer | Iowa |
| 9 | Fay Mowry | 6 | Daughter | — | Iowa |
| 10 | Rosa Grey | 63 | Head | — | Germany |
| 11 | Gus Grey | 23 | Son | Farmer | Iowa |
| 12 | Clem Keyes | 49 | Head | County Chairman | Iowa |
| 13 | Eulalie Keyes | 47 | Wife | — | Iowa |
| 14 | Ernest J. Hayes | 56 | Head | Painter | Iowa |
| 15 | Lucille Hayes | 44 | Wife | — | Oregon |
| 16 | Robert Hayes | 15 | Son | — | Iowa |
| 17 | Dorothy Hayes | 13 | Daughter | — | Iowa |
| 18 | Francis Bergstrom | 36 | Head | Farmer | South Dakota |
| 19 | Eva Bergstrom | 29 | Wife | — | Iowa |
| 20 | Bonnie Lee Bergstrom | 5 | Daughter | — | Iowa |
| 21 | Bobby Lee Bergstrom | 4 | Son | — | Iowa |
| 22 | Raymond Rosacker | 31 | Head | Farm Laborer | Nebraska |
| 23 | Luetta Rosacker | 26 | Wife | — | Nebraska |
| 24 | Norma Jean Rosacker | 4 | Daughter | — | Nebraska |
| 25 | Carl G. Lorence | 66 | Head | Farmer | Sweden |
| 26 | Ida Lorence | 67 | Wife | — | Sweden |
| 27 | Leo Backfield | 32 | Head | Farm Laborer | Iowa |
| 28 | Edith Backfield | 31 | Wife | — | Colorado |
| 29 | E. F. Thomas | 62 | Head | Farmer | Iowa |
| 30 | Jennie Thomas THIS PERSON | 61 | Wife | — | Iowa |
| 31 | Mildred Gibson | 37 | Daughter | — | Iowa |
| 32 | Elna Mae Gibson | 13 | Granddaughter | — | Iowa |
| 33 | Virginia Gibson | 7 | Granddaughter | — | Iowa |
| 34 | John Firebaugh | 26 | Head | — | Illinois |
| 35 | Byna Firebaugh | 23 | Wife | — | Iowa |
| 36 | Sid J. Mccord | 55 | Head | Salesman | Iowa |
| 37 | Dora Mccord | 52 | Wife | — | Kansas |
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)