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Catherine Sullivan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Dallas-County, Iowa
Our Model Tree links this Catherine Sullivan across the 1920, 1930 and 1940 US Censuses in Dallas-County, Iowa (XGBoost, ~Confirmed), with identified parents William & William — first a daughter (b.~1919), then head of a 7-person household.
Age 21
b. ~1919
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Dallas-County, Iowa |
| Surname | Sullivan |
| Given Name | Catherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (County) | Dallas |
| Additional Details | |
| Occupation | 35 |
| Industry | School Teacher |
| Class of Worker | Public School |
| Highest Grade | C 1 |
| 1935 Residence | Same home |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | 35 |
| Township / Ward | Des Moines Twp |
| Est. Birth Year | ~1919 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Catherine | Age | Birth yr |
|---|---|---|---|---|
| Alice Sullivan | Daughter | — | 16 | ~1924 |
| Catherine Sullivan | Daughter | — | 21 | ~1919 |
| Marie Sullivan | Daughter | — | 19 | ~1921 |
| William Sullivan | Head | — | 59 | ~1881 |
| Robert Sullivan | Son | — | 31 | ~1909 |
| William Sullivan | Son | — | 14 | ~1926 |
| Margaret Sullivan | Spouse | — | 55 | ~1885 |
Census Appearances
1920
Dallas, Iowa
Daughter, age 1
Dallas, Iowa · implied b. ~1919 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Catherine L. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Canada |
| Occupation | none |
| Mother Tongue | English |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Dallas, Iowa
Daughter, age 11
Dallas, Iowa · implied b. ~1919 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Catherine F. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Canada-English |
| Occupation | none |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Dallas-County, Iowa
Daughter, age 21
Dallas-County, Iowa · implied b. ~1919 — 7 household members
| Surname | Sullivan |
| Given Name | Catherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (County) | Dallas |
| Occupation | 35 |
| Industry | School Teacher |
| Class of Worker | Public School |
| Highest Grade | C 1 |
| 1935 Residence | Same home |
| 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 Catherine Sullivan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Sullivan (~0.92 confidence) and father William Sullivan (~0.92 confidence) and mother Margaret Sullivan (~0.92 confidence) and mother Margaret Sullivan (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Sullivan
b. ~1881
Source father
● Household
· direct · ~0.92
Father
William Sullivan
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Margaret Sullivan
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Margaret Sullivan
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Catherine Sullivan
Daughter · 1940 · age 21 · b. ~1919 · Iowa
★ You are viewing this record
Sibling
Robert Sullivan
Sibling · 1940 · age 31
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Sullivan
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marie Sullivan
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Sullivan
Sibling · 1940 · age 14
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 — Dallas-County, Iowa
Open full size
1940 US Federal Census — Dallas-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01153-00257)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Gerald Spellman | 4 | Son | — | Iowa |
| 42 | Thomas Wohlwend | 39 | Head | 50 | Iowa |
| 43 | Edith Wohlwend | 33 | Wife | — | Kentucky |
| 44 | Everett Gladson | 33 | Head | 52 | Iowa |
| 45 | Gladys Gladson | 32 | Wife | — | Iowa |
| 46 | Dorothy Jean Gladson | 10 | Daughter | — | Iowa |
| 47 | Milo Roby | 27 | Head | 52 | Iowa |
| 48 | Jeanette Roby | 29 | Wife | — | Kansas |
| 49 | Janet Roby | 4 | Daughter | — | Iowa |
| 50 | Laurence Karney | 34 | Head | 40 | Iowa |
| 51 | Velma Karney | 31 | Wife | — | Iowa |
| 52 | Larry Karney | 6 | Son | — | Iowa |
| 53 | William Sullivan | 59 | Head | 60 | Iowa |
| 54 | Margaret Sullivan | 55 | Wife | — | Canada |
| 55 | Robert Lee Sullivan | 31 | Son | 70 | Iowa |
| 56 | Catherine Sullivan THIS PERSON | 21 | Daughter | 35 | Iowa |
| 57 | Marie L. Sullivan | 19 | Daughter | — | Iowa |
| 58 | Alice Sullivan | 16 | Daughter | — | Iowa |
| 59 | William Junior Sullivan | 14 | Son | — | Iowa |
| 60 | Mat Murphy | 52 | Head | 50 | Iowa |
| 61 | Catherine Murphy | 57 | Wife | — | Iowa |
| 62 | William Murphy | 25 | Son | 58 | Iowa |
| 63 | Joe Murphy | 21 | Son | 60 | Iowa |
| 64 | Helen Murphy | 17 | Daughter | — | Iowa |
| 65 | Mat Junior Murphy | 23 | Head | 60 | Iowa |
| 66 | Willie M. Moran | 52 | Head | 48 | Iowa |
| 67 | William Reed | 69 | Hired man | 35 | Iowa |
| 68 | Pete Moran | 54 | Cousin | 50 | Iowa |
| 69 | William P. Tiernan | 26 | Head | 50 | Iowa |
| 70 | Henrietta Tiernan | 27 | Wife | — | Iowa |
| 71 | Clement Manning | 29 | Head | 62 | Iowa |
| 72 | Amelia Manning | 30 | Wife | — | Iowa |
| 73 | Thomas Manning | 5 | Son | — | Iowa |
| 74 | Daniel Manning | 4 | Son | — | Iowa |
| 75 | Paul Manning | 1 | Son | — | Iowa |
| 76 | Elmer Kuehl | 27 | Head | 50 | Iowa |
| 77 | Irene Kuehl | 25 | Wife | — | Iowa |
| 78 | Larry B. Kuehl | 4 | Son | — | Iowa |
| 79 | Roy Kenson | 44 | Head | 60 | Iowa |
| 80 | Lucie Kenson | 41 | Wife | — | Iowa |
Pedigree Summary
Catherine + 4 siblings
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)