TS
Thomas Sweeney — 1940 US Census Record
Model Tree available1940 United States Federal Census · Polk-County, Iowa
Our Model Tree links this Thomas Sweeney across the 1920, 1930 and 1940 US Censuses in Polk-County, Iowa (XGBoost, ~Confirmed), with identified parents Patrick & Peter — first a head (b.~1910), then head of a 3-person household.
Age 30
b. ~1910
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Polk-County, Iowa |
| Surname | Sweeney |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Jefferson Township |
| 1935 Residence (County) | Polk |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | H-2 |
| 1935 Residence | Same Place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farmer |
| Township / Ward | Jefferson Township |
| Est. Birth Year | ~1910 |
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 Thomas | Age | Birth yr |
|---|---|---|---|---|
| Edward Sweeney | Son | — | 5 | ~1935 |
| Thomas Sweeney | Head | — | 30 | ~1910 |
| Anna Sweeney | Spouse | — | 26 | ~1914 |
Census Appearances
1920
Polk, Iowa
Son, age 9
Polk, Iowa · implied b. ~1911 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sweeney |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Ohio |
| Mother's Birthplace | New Jersey |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Polk, Iowa
Son, age 20
Polk, Iowa · implied b. ~1910 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sweeney |
| Given Name | Thomas E |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Ohio |
| Mother's Birthplace | New York |
| Occupation | Laborer |
| Industry | General Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Polk-County, Iowa
Head, age 30
Polk-County, Iowa · implied b. ~1910 — 3 household members
| Surname | Sweeney |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Jefferson Township |
| 1935 Residence (County) | Polk |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | H-2 |
| 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 Thomas Sweeney across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Patrick Sweeney (~0.92 confidence) and father Peter Sweeney (~0.92 confidence) and mother Mary Sweeney (~0.92 confidence) and mother Mary Sweeney (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Patrick Sweeney
b. ~1868
Source father
● Household
· direct · ~0.92
Father
Peter Sweeney
b. ~1868
Source father
● Household
· direct · ~0.92
Mother
Mary Sweeney
b. ~1872
Source mother
● Household
· direct · ~0.92
Mother
Mary Sweeney
b. ~1875
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Sweeney
Head · 1940 · age 30 · b. ~1910 · Iowa
★ 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 — Polk-County, Iowa
Open full size
1940 US Federal Census — Polk-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01192-00605)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | James Brown | 44 | Head | Farmer | Iowa |
| 42 | Madge Brown | 44 | Wife | — | Iowa |
| 43 | Everett Brown | 19 | Son | — | Idaho |
| 44 | William Brown | 18 | Son | — | Iowa |
| 45 | William Herrold | 35 | Head | Mechanic | Iowa |
| 46 | Faye Herrold | 28 | Wife | — | Iowa |
| 47 | Eugene Herrold | 11 | Son | — | Iowa |
| 48 | Bettie Lee Herrold | 10 | Daughter | — | Iowa |
| 49 | Donna Herrold | 6 | Daughter | — | Iowa |
| 50 | Shirley Herrold | 4 | Daughter | — | Iowa |
| 51 | Frank Herrold | 65 | Head | Trucker | Iowa |
| 52 | Elizabeth Herrold | 62 | Wife | — | Iowa |
| 53 | Martin Finestead | 43 | Head | Farmer | Iowa |
| 54 | Hazel Finestead | 42 | Wife | — | Iowa |
| 55 | Lowell Finestead | 20 | Son | Laborer | Iowa |
| 56 | Martin Jr Finestead | 18 | Son | Laborer | Iowa |
| 57 | Betty Finestead | 6 | Daughter | — | Iowa |
| 58 | Georgia Finestead | 22 | Daughter | Waitress | Iowa |
| 59 | Bonnie Kay Finestead | 1 | Daughter | — | Iowa |
| 60 | Merrill Fitzsimmons | 46 | Head | Salesman | Iowa |
| 61 | Mabelle Fitzsimmons | 45 | Wife | — | Iowa |
| 62 | Margaret B. Fitzsimmons | 23 | Daughter | Teacher | Iowa |
| 63 | James Fitzsimmons | 17 | Son | Laborer | Iowa |
| 64 | Marilyn Fitzsimmons | 15 | Daughter | — | Iowa |
| 65 | Donald Le Master | 25 | Head | Farmer | Iowa |
| 66 | Irene Le Master | 22 | Wife | — | Iowa |
| 67 | Arthur Kohls | 37 | Hired Hand | Laborer | Iowa |
| 68 | Phillip Finestead | 43 | Head | Farmer | Iowa |
| 69 | Georgia Finestead | 40 | Wife | — | Iowa |
| 70 | Ray Finestead | 19 | Son | Laborer | Iowa |
| 71 | Bernadene Finestead | 16 | Daughter | — | Iowa |
| 72 | Dale Finestead | 10 | Son | — | Iowa |
| 73 | Carol Jean Finestead | 3 | Daughter | — | Iowa |
| 74 | Frank Cole | 50 | Head | Farmer | Missouri |
| 75 | Lulu V. Cole | 47 | Wife | — | Missouri |
| 76 | William C. Cole | 15 | Son | — | Oklahoma |
| 77 | Geneva Cole | 10 | Daughter | — | Iowa |
| 78 | Thomas Sweeney THIS PERSON | 30 | Head | Farmer | Iowa |
| 79 | Anna Marie Sweeney | 26 | Wife | — | Iowa |
| 80 | Edward M. Sweeney | 5 | Son | — | Iowa |
Pedigree Summary
Thomas
Gen 1 · 4 parents
~0.92
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)