FS
Frank Sullivan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Davis-County, Iowa
Our Model Tree links this Frank Sullivan across the 1930 and 1940 US Censuses in Davis-County, Iowa (XGBoost, ~Confirmed) — first a son (b.~1923), then head of a 13-person household.
Age 17
b. ~1923
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Davis-County, Iowa |
| Surname | Sullivan |
| Given Name | Frank William |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Davis |
| Additional Details | |
| Highest Grade | H 1 |
| 1935 Residence | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Bloomfield City |
| Est. Birth Year | ~1923 |
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.
13 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Frank | Age | Birth yr |
|---|---|---|---|---|
| Mary Sullivan | Daughter | — | 11 | ~1929 |
| Nancy Sullivan | Daughter | — | 4 | ~1936 |
| Alberta Sullivan | Daughter | — | 8 | ~1932 |
| Harry Sullivan | Son | — | 6 | ~1934 |
| Eunice Sullivan | Daughter | — | 7 | ~1933 |
| Mitte Sullivan | Spouse | — | 41 | ~1899 |
| Kathryn Sullivan | Daughter | — | 20 | ~1920 |
| Ruth Sullivan | Daughter | — | 12 | ~1928 |
| John Sullivan | Head | — | 44 | ~1896 |
| Doris Sullivan | Daughter | — | 18 | ~1922 |
| Paul Sullivan | Son | — | 14 | ~1926 |
| Frank Sullivan | Son | — | 17 | ~1923 |
| Genevieve Sullivan | Daughter | — | 13 | ~1927 |
Census Appearances
1930
Davis, Iowa
Son, age 7
Davis, Iowa · implied b. ~1923 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Frank W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Missouri |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Davis-County, Iowa
Son, age 17
Davis-County, Iowa · implied b. ~1923 — 13 household members
| Surname | Sullivan |
| Given Name | Frank William |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Davis |
| Highest Grade | H 1 |
| 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 Frank Sullivan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Frank Sullivan
Son · 1940 · age 17 · b. ~1923 · Iowa
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Sibling
Harry Sullivan
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Sullivan
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Sullivan
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alberta Sullivan
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kathryn Sullivan
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Genevieve Sullivan
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paul Sullivan
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nancy Sullivan
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Doris Sullivan
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eunice Sullivan
Sibling · 1940 · age 7
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 — Davis-County, Iowa
Open full size
1940 US Federal Census — Davis-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01154-00058)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary Ellen Crist | 15 | daughter | — | Iowa |
| 2 | Carl William Crist | 13 | son | — | Iowa |
| 3 | Paul Jr. Wardlow | 23 | Head | Buyer | Missouri |
| 4 | Irma E. Wardlow | 23 | wife | — | Iowa |
| 5 | Irmajean A. Wardlow | 4 | daughter | — | Iowa |
| 6 | James Nile Wardlow | 2 | son | — | Iowa |
| 7 | Mary Schlegel | 52 | Head | — | Iowa |
| 8 | Lester R. August | 43 | Head | Shop Foreman | Iowa |
| 9 | Alice E. August | 43 | wife | — | Ohio |
| 10 | Robert L. August | 18 | son | Tractor Operator | Iowa |
| 11 | Donald G. August | 17 | son | Farm Hand | Iowa |
| 12 | Carl D. August | 15 | son | Helping On A Farm | Iowa |
| 13 | Stanley E. August | 5 | son | — | Iowa |
| 14 | J. Edward Trickler | 57 | Head | Salesman | Iowa |
| 15 | M. Rena Trickler | 55 | wife | — | Iowa |
| 16 | Helen L. Trickler | 25 | daughter | Map Plotting | Iowa |
| 17 | Allen, Amonie Trickler | 76 | lodger | — | Iowa |
| 18 | Lodger Rutherford, James | None | M | — | — |
| 19 | Ira L. Deal | 42 | Head | Employee | Nebraska |
| 20 | Cecil G. Deal | 42 | wife | — | Iowa |
| 21 | C. Frederick Deal | 23 | son | Cleaner & Presser | Iowa |
| 22 | F. Max Deal | 19 | son | Clerk | Iowa |
| 23 | Betty J. Deal | 17 | daughter | — | Iowa |
| 24 | Shirlee Diann Deal | 8 | daughter | — | Iowa |
| 25 | Charlene Sue Deal | 2 | daughter | — | Iowa |
| 26 | Dale O. Sheumaker | 27 | Head | Station Attendant | Iowa |
| 27 | Marian L. Sheumaker | 26 | wife | — | Iowa |
| 28 | John Israel Sullivan | 44 | Head | Janitor | Iowa |
| 29 | Mitte G. Sullivan | 41 | wife | — | Missouri |
| 30 | Kathryn C. Sullivan | 20 | daughter | Beauty Operator | Iowa |
| 31 | Doris Lee Sullivan | 18 | daughter | — | Missouri |
| 32 | Frank William Sullivan THIS PERSON | 17 | son | — | Iowa |
| 33 | Paul L. Sullivan | 14 | son | — | Iowa |
| 34 | Genevieve Sullivan | 13 | daughter | — | Iowa |
| 35 | Ruth Jean Sullivan | 12 | daughter | — | Iowa |
| 36 | Mary Louise Sullivan | 11 | daughter | — | Iowa |
| 37 | Alberta Jane Sullivan | 8 | daughter | — | Iowa |
| 38 | Eunice Ann Sullivan | 7 | daughter | — | Iowa |
| 39 | Harry Wayne Sullivan | 6 | son | — | Iowa |
| 40 | Nancy Carol Sullivan | 4 | daughter | — | Iowa |
Related Census Records
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)