AS
Alice Sullivan — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Dubuque, Iowa
Our Model Tree links this Alice Sullivan across the 1910 and 1920 US Censuses in Dubuque, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1900), then head of a 10-person household.
Age 20
b. ~1900
Female
Daughter
Born: Iowa
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Dubuque, Iowa |
| Surname | Sullivan |
| Given Name | Alice M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Additional Details | |
| Occupation | Teacher |
| Industry | Public school |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Teacher |
| Township / Ward | Washington Township |
| Est. Birth Year | ~1900 |
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.
10 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Alice | Age | Birth yr |
|---|---|---|---|---|
| Mildred Sullivan | Daughter | — | 16 | ~1904 |
| Martha Sullivan | Daughter | — | 21 | ~1899 |
| Alice Sullivan | Daughter | — | 20 | ~1900 |
| Michael Sullivan | Head | — | 54 | ~1866 |
| Frank Sullivan | Son | — | 18 | ~1902 |
| Harry Sullivan | Son | — | 26 | ~1894 |
| William Sullivan | Son | — | 15 | ~1905 |
| Daniel Sullivan | Son | — | 23 | ~1897 |
| John Sullivan | Son | — | 14 | ~1906 |
| Elizabeth Sullivan | Spouse | — | 51 | ~1869 |
Census Appearances
1910
Dubuque, Iowa
Daughter, age 11
Dubuque, Iowa · implied b. ~1899 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Alice |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1920
Dubuque, Iowa
Daughter, age 20
Dubuque, Iowa · implied b. ~1900 — 10 household members
| Surname | Sullivan |
| Given Name | Alice M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | Teacher |
| Industry | Public school |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| 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 Alice Sullivan across 2 US Census years (1910 and 1920) in Dubuque, Iowa, using XGBoost record linkage.
Show:
This person
Anchor record
Alice Sullivan
Daughter · 1920 · age 20 · b. ~1900 · Iowa
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Sibling
John Sullivan
Sibling · 1920 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frank Sullivan
Sibling · 1920 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Sullivan
Sibling · 1920 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mildred Sullivan
Sibling · 1920 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Martha Sullivan
Sibling · 1920 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harry Sullivan
Sibling · 1920 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Daniel Sullivan
Sibling · 1920 · age 23
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
1920 US Federal Census — Dubuque, Iowa
Open full size
1920 US Federal Census — Dubuque, Iowa
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu488unit:1224)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Patrick J | 25 | Son | — | Iowa |
| 2 | Daniel | 22 | Son | — | Iowa |
| 3 | Lawrence Splinter | 47 | Head | Farmer | Iowa |
| 4 | Anna Joseph Splinter | 41 | Wife | — | Iowa |
| 5 | Mary F Splinter | 21 | Daughter | — | Iowa |
| 6 | Catherine G Splinter | 20 | Daughter | — | Iowa |
| 7 | Lawrence J Splinter | 19 | Son | Farm Laborer | Iowa |
| 8 | Harry Splinter | 17 | Son | — | Iowa |
| 9 | Anna F Splinter | 15 | Daughter | — | Iowa |
| 10 | Bernice Splinter | 11 | Daughter | — | Iowa |
| 11 | William Lemaster | 32 | Head | Farmer | Illinois |
| 12 | Elizabeth Lemaster | 20 | Wife | — | Iowa |
| 13 | William F Courtney | 47 | Head | Farmer | Iowa |
| 14 | Margaret Courtney | 41 | Wife | — | Iowa |
| 15 | William Courtney | 15 | Son | — | Iowa |
| 16 | Regina Courtney | 6 | Daughter | — | Iowa |
| 17 | John Courtney | 4 | Son | — | Iowa |
| 18 | John Shannon | 33 | Head | Farmer | Iowa |
| 19 | Rose B Shannon | 26 | Wife | — | Iowa |
| 20 | Leo F Shannon | 2 | Son | — | Iowa |
| 21 | N B Wiedemann | 40 | Head | Farm Laborer | Iowa |
| 22 | Elizabeth Wiedemann | 38 | Wife | Farm Laborer | Iowa |
| 23 | Mary F Wiedemann | 11 | Daughter | — | Iowa |
| 24 | Clara A Wiedemann | 11 | Daughter | — | Iowa |
| 25 | Joseph Wiedemann | 8 | Son | — | Iowa |
| 26 | Catherine Wiedemann | 4 | Daughter | — | Iowa |
| 27 | Joseph Caffery | 42 | Head | Farmer | Iowa |
| 28 | Nicholas Theisen | 43 | Head | Farmer | Iowa |
| 29 | Anna Theisen | 34 | Wife | — | Iowa |
| 30 | Leo Theisen | 4 | Son | — | Iowa |
| 31 | Marie Theisen | 2 | Daughter | — | Iowa |
| 32 | Joseph Theisen | 32 | Head | Farm Laborer | Iowa |
| 33 | Mary Theisen | 24 | Wife | Farm Laborer | Iowa |
| 34 | Leo F Theisen | 7 | Daughter | — | Iowa |
| 35 | Caroline Theisen | 4 | Daughter | — | Iowa |
| 36 | Simon Theisen | 2 | Son | — | Iowa |
| 37 | Nicholas J Mauer | 71 | Head | — | Luxemburg |
| 38 | Anna C Mauer | 68 | Wife | — | Iowa |
| 39 | Julia Mauer | 28 | Daughter | — | Iowa |
| 40 | John Splinter | 17 | Hired man | Farm Laborer | Iowa |
| 41 | Michael J Sullivan | 54 | Head | Farmer | Iowa |
| 42 | Elizabeth Sullivan | 51 | Wife | — | Iowa |
| 43 | Harry Sullivan | 26 | Son | Farm Laborer | Iowa |
| 44 | Daniel J Sullivan | 23 | Son | Teacher | Iowa |
| 45 | Martha M Sullivan | 21 | Daughter | — | Iowa |
| 46 | Alice M Sullivan THIS PERSON | 20 | Daughter | Teacher | Iowa |
| 47 | Frank J Sullivan | 18 | Son | Farm Laborer | Iowa |
| 48 | Mildred M Sullivan | 16 | Daughter | Teacher | Iowa |
| 49 | William J Sullivan | 15 | Son | — | Iowa |
| 50 | John M Sullivan | 14 | Son | — | Iowa |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)