ET
Evelyn Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Jones-County, Iowa
Our Model Tree links this Evelyn Thomas across the 1930 and 1940 US Censuses in Jones-County, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 11-person household.
Age 12
b. ~1928
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Jones-County, Iowa |
| Surname | Thomas |
| Given Name | Evelyn N. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Jones |
| Additional Details | |
| Highest Grade | No 3 |
| 1935 Residence | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Anamosa City |
| Est. Birth Year | ~1928 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Evelyn | Age | Birth yr |
|---|---|---|---|---|
| Glen Thomas | Son | — | 4 | ~1936 |
| Carl Thomas | Son | — | 8 | ~1932 |
| Clarence Thomas | Head | — | 44 | ~1896 |
| Mattie Thomas | Daughter | — | 2 | ~1938 |
| Eva Thomas | Daughter | — | 13 | ~1927 |
| Gwendolyn Thomas | Daughter | — | 1 | ~1939 |
| Francis Thomas | Son | — | 6 | ~1934 |
| Mary Thomas | Daughter | — | 10 | ~1930 |
| Mattie Thomas | Spouse | — | 39 | ~1901 |
| Betty Thomas | Daughter | — | 15 | ~1925 |
| Evelyn Thomas | Daughter | — | 12 | ~1928 |
Census Appearances
1930
Jones, Iowa
Other, age 2
Jones, Iowa · implied b. ~1928 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Evelyn N |
| Relationship to Head | Granddaughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read/Write | No |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Jones-County, Iowa
Daughter, age 12
Jones-County, Iowa · implied b. ~1928 — 11 household members
| Surname | Thomas |
| Given Name | Evelyn N. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Jones |
| Highest Grade | No 3 |
| 1935 Residence | Iowa |
| 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 Evelyn Thomas across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Evelyn Thomas
Daughter · 1940 · age 12 · b. ~1928 · Iowa
★ You are viewing this record
Sibling
Betty Thomas
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mattie Thomas
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Thomas
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carl Thomas
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Glen Thomas
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eva Thomas
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gwendolyn Thomas
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Thomas
Sibling · 1940 · age 10
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 — Jones-County, Iowa
Open full size
1940 US Federal Census — Jones-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01172-00114)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Geneva L. Seely | 24 | wife | Housewife | Iowa |
| 42 | Delbert L. Seely | 4 | son | — | — |
| 43 | Jacob M. Zubrod | 73 | Head | — | Wisconsin |
| 44 | Frank E. Zubrod | 28 | son | Laborer | Iowa |
| 45 | Agnes M. Zubrod | 13 | daughter | — | Iowa |
| 46 | William Mullen | 62 | Head | Section Boss | Eire |
| 47 | Maude V. Mullen | 59 | wife | Housewife | Iowa |
| 48 | Agustus Mcdaniel | 84 | Head | — | New Jersey |
| 49 | Ellen H.E. Mcdaniel | 88 | wife | — | Iowa |
| 50 | Glenn W. Davis | 49 | Head | — | Iowa |
| 51 | Inez Davis | 49 | wife | Housework | Iowa |
| 52 | Charles H. Davis | 22 | son | Laborer | Iowa |
| 53 | James H. Cavanaugh | 74 | Head | — | Iowa |
| 54 | Nona E. Cavanaugh | 66 | sister | Teacher | Iowa |
| 55 | Margaret Daly | 70 | sister | — | Iowa |
| 56 | Frank Snyder | 74 | Head | Apiarist | Iowa |
| 57 | Gertrude Snyder | 70 | wife | — | Iowa |
| 58 | Thomas H. Snyder | 36 | son | Apiarist | Iowa |
| 59 | Marjorie M. Snyder | 24 | wife | — | Iowa |
| 60 | Martha J. Snyder | 1 | daughter | — | — |
| 61 | Clarence L. Thomas | 44 | Head | Laborer | Iowa |
| 62 | Mattie F. Thomas | 39 | wife | — | Iowa |
| 63 | Betty J. Thomas | 15 | daughter | — | Iowa |
| 64 | Eva M. Thomas | 13 | daughter | — | Iowa |
| 65 | Evelyn N. Thomas THIS PERSON | 12 | daughter | — | Iowa |
| 66 | Mary A. Thomas | 10 | daughter | — | Iowa |
| 67 | Carl E. Thomas | 8 | son | — | Iowa |
| 68 | Francis L. Thomas | 6 | son | — | Iowa |
| 69 | Glen L. Thomas | 4 | son | — | — |
| 70 | Mattie L. Thomas | 2 | daughter | — | — |
| 71 | Gwendolyn L. Thomas | 1 | daughter | — | — |
| 72 | Manda Anderson | 57 | Head | — | Iowa |
| 73 | George W. Anderson | 34 | son | Laborer | Iowa |
| 74 | John E. Anderson | 27 | son | Laborer | Iowa |
| 75 | Carl H. Anderson | 15 | grandson | — | Iowa |
| 76 | Ronald W. Anderson | 14 | grandson | — | Iowa |
| 77 | Catherine Anderson | 12 | daughter | — | Iowa |
| 78 | Leo K. Wolf | 30 | Head | Attendant | Iowa |
| 79 | Alice E. Wolf | 26 | wife | Button Holer | Iowa |
| 80 | Patricia A. Wolf | 1 | daughter | — | — |
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)