DS
Dennis Sullivan — 1920 US Census Record
Linked across censuses1920 United States Federal Census · St Louis, Minnesota
Our Model Tree links this Dennis Sullivan across the 1900, 1910 and 1920 US Censuses in St Louis, Minnesota (XGBoost, ~Confirmed) — first a head (b.~1860), then head of a 9-person household.
Age 60
b. ~1860
Male
Head
Born: Michigan
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | St Louis, Minnesota |
| Surname | Sullivan |
| Given Name | Dennis |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Michigan |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Brakeman |
| Industry | Steam Railroad |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | Brakeman |
| Township / Ward | Duluth City |
| Est. Birth Year | ~1860 |
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.
9 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Dennis | Age | Birth yr |
|---|---|---|---|---|
| Ollie Sullivan | Daughter | — | 8 | ~1912 |
| Lillian Sullivan | Daughter | — | 26 | ~1894 |
| Clifford Sullivan | Son | — | 5 | ~1915 |
| George Sullivan | Son | — | 23 | ~1897 |
| Earl Sullivan | Son | — | 19 | ~1901 |
| Claude Sullivan | Son | — | 14 | ~1906 |
| Dennis Sullivan | Head | — | 60 | ~1860 |
| Leona Sullivan | Spouse | — | 42 | ~1878 |
| Dennis Sullivan | Son | — | 21 | ~1899 |
Census Appearances
1900
St Louis, …
Head, age 39
St Louis, Minnesota · implied b. ~1861 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Dennis |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Michigan |
| Birth Year | 1861 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | B. Fireman (P.W.) |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1910
St Louis, …
Head, age 47
St Louis, Minnesota · implied b. ~1863 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Denis |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Michigan |
| Years Married | 19 |
| Father's Birthplace | Irl-English |
| Mother's Birthplace | Irl-English |
| Occupation | Brakeman |
| Industry | Railroad |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1920
St Louis, …
Head, age 60
St Louis, Minnesota · implied b. ~1860 — 9 household members
| Surname | Sullivan |
| Given Name | Dennis |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Michigan |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Brakeman |
| Industry | Steam Railroad |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 Dennis Sullivan across 3 US Census years (1900, 1910 and 1920) in St Louis, Minnesota, using XGBoost record linkage.
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This person
Anchor record
Dennis Sullivan
Head · 1920 · age 60 · b. ~1860 · Minnesota
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — St Louis, Minnesota
Open full size
1920 US Federal Census — St Louis, Minnesota
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu859unit:0344)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Bloomquist | 26 | Lodger | Carpenter | Finland |
| 2 | John Currie | 56 | Head | Merchant | Canada |
| 3 | Mary Currie | 51 | Wife | None | Canada |
| 4 | Roy F. Currie | 25 | Son | Salesman | Minnesota |
| 5 | Millie Currie | 24 | Daughter-in-law | None | Minnesota |
| 6 | John Currie | 23 | Son | Electrician | Minnesota |
| 7 | Archie D. Currie | 21 | Son | Electrician | Minnesota |
| 8 | Rose M. Currie | 7 | Granddaughter | None | Minnesota |
| 9 | John E. Sullivan | 13 | Lodger | None | Wisconsin |
| 10 | Christian Hanson | 59 | Head | Carpenter | Norway |
| 11 | Emma Hanson | 57 | Wife | None | Norway |
| 12 | Nellie Hanson | 27 | Daughter | None | Wisconsin |
| 13 | Nels P. Johnson | 60 | Head | Pipe Fitter | Sweden |
| 14 | Marie Johnson | 55 | Wife | None | Norway |
| 15 | Vivian Johnson | 20 | Son | Sailor | Minnesota |
| 16 | August W. Johnson | 62 | Brother | Laborer | Sweden |
| 17 | William J. Norris | 44 | Head | Electrician | Wisconsin |
| 18 | Bernice Norris | 38 | Wife | None | Minnesota |
| 19 | Hazel D. Norris | 14 | Daughter | None | Minnesota |
| 20 | Stella S. Norris | 11 | Daughter | None | Minnesota |
| 21 | Donald W. Norris | 8 | Son | None | Minnesota |
| 22 | David M. Norris | 4 | Son | None | Minnesota |
| 23 | Jacob Halvorson | 30 | Head | Conductor | Wisconsin |
| 24 | Selma Halvorson | 23 | Wife | None | Wisconsin |
| 25 | Clayton Halvorson | 7 | Son | None | Wisconsin |
| 26 | Leland Halvorson | 5 | Son | None | Minnesota |
| 27 | Minnie Halvorson | 3 | Daughter | None | Minnesota |
| 28 | John Tomckan | 47 | Head | Laborer | Sweden |
| 29 | Anna Tomckan | 41 | Wife | None | Sweden |
| 30 | Austrid L. Tomckan | 4 | Daughter | None | Minnesota |
| 31 | Emil Peterson | 39 | Lodger | Watchman | Sweden |
| 32 | Ed Kempe | 38 | Lodger | Carpenter | Finland |
| 33 | Lena C. Kalen | 45 | Head | Cook | Norway |
| 34 | Oleson Oscar Kalen | 26 | Son | Laborer | Minnesota |
| 35 | Oleson Myrtle Kalen | 17 | Daughter | Clerk | Minnesota |
| 36 | Frank Lundberg | 34 | Lodger | Hostler | Sweden |
| 37 | Dennis Sullivan THIS PERSON | 60 | Head | Brakeman | Michigan |
| 38 | Leona Sullivan | 42 | Wife | None | Ireland |
| 39 | Lillian Sullivan | 26 | Daughter | None | Minnesota |
| 40 | George Sullivan | 23 | Son | Bookkeeper | Minnesota |
| 41 | Dennis Jr. Sullivan | 21 | Son | Machinist | Minnesota |
| 42 | Earl Sullivan | 19 | Son | Chauffeur | Minnesota |
| 43 | Claude Sullivan | 14 | Son | None | Minnesota |
| 44 | Ollie Sullivan | 8 | Daughter | None | Minnesota |
| 45 | Clifford Sullivan | 5 | Son | None | Minnesota |
| 46 | Anna Montgomery | 54 | Head | None | England |
| 47 | William Montgomery | 35 | Son | Mechanic | Minnesota |
| 48 | Charles Montgomery | 24 | Son | Mechanic | Minnesota |
| 49 | Joseph Pickell | 32 | Lodger | Laborer | Russia |
| 50 | Thomas Mckillop | 35 | Head | Laborer | Canada |
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)