DS
Dennis Sullivan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · York-County, Maine
Our Model Tree links this Dennis Sullivan across the 1920, 1930 and 1940 US Censuses in York-County, Maine (XGBoost, ~Confirmed) — first a head (b.~1866), then head of a 3-person household.
Age 74
b. ~1866
Male
Head
Born: Maine
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | York-County, Maine |
| Surname | Sullivan |
| Given Name | Dennis |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 74 |
| Marital Status | Married |
| Birthplace | Maine |
| 1935 Residence (City) | Biddeford City |
| 1935 Residence (County) | York |
| Additional Details | |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
| Township / Ward | Biddeford City |
| Est. Birth Year | ~1866 |
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 Dennis | Age | Birth yr |
|---|---|---|---|---|
| Thomas Sullivan | Son | — | 41 | ~1899 |
| Dennis Sullivan | Head | — | 74 | ~1866 |
| Mary Sullivan | Spouse | — | 73 | ~1867 |
Census Appearances
1920
York, Maine
Head, age 50
York, Maine · implied b. ~1870 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Dennis T |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Maine |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Moulder |
| Industry | Iron Foundry |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
1930
York, Maine
Head, age 64
York, Maine · implied b. ~1866 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Dennis J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | Maine |
| Age at First Marriage | 29 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Occupation | Loom Fixer |
| Industry | Cotton Mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 17.00 |
| Veteran | No |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
1940
York-County, Maine
Head, age 74
York-County, Maine · implied b. ~1866 — 3 household members
| Surname | Sullivan |
| Given Name | Dennis |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 74 |
| Marital Status | Married |
| Birthplace | Maine |
| 1935 Residence (City) | Biddeford City |
| 1935 Residence (County) | York |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
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 (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Dennis Sullivan
Head · 1940 · age 74 · b. ~1866 · Maine
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — York-County, Maine
Open full size
1940 US Federal Census — York-County, Maine
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01495-00281)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Eugene Houde | 49 | Head | Loom Fixer | Maine |
| 2 | Corrine Houde | 48 | Wife | Inspector | Canada French |
| 3 | Pauline Houde | 19 | Daughter | Salesclerk | Maine |
| 4 | Paul Houde | 17 | Son | — | Maine |
| 5 | Georgette Houde | 14 | Daughter | — | Maine |
| 6 | John Wragg | 32 | Head | Topmaker | England |
| 7 | Alice Wragg | 31 | Wife | — | England |
| 8 | Ellian Wragg | 8 | Daughter | — | Maine |
| 9 | Theophile Heault | 45 | Head | Wheelwright | Maine |
| 10 | Gedeline Heault | 40 | Wife | — | Maine |
| 11 | Paul Emile Heault | 19 | Son | Weaver | Maine |
| 12 | Gilbert Heault | 16 | Son | — | Maine |
| 13 | Colette Heault | 13 | Daughter | — | Maine |
| 14 | William Minicher | 53 | Head | Carder | Eire |
| 15 | Mary Minicher | 56 | Wife | Watchman | Eire |
| 16 | Mary Minicher | 33 | Daughter | Stenographer | Maine |
| 17 | Grace Minicher | 18 | Daughter | Saleslady | Maine |
| 18 | John William Minicher | 15 | Son | Delivery Boy | Maine |
| 19 | Charles Minicher | 13 | Son | — | Maine |
| 20 | Frances Minicher | 11 | Daughter | — | Maine |
| 21 | Nancy Ann Minicher | 6 | Daughter | — | Maine |
| 22 | Peter Wilson | 65 | Head | Watchman | Maine |
| 23 | Emma Wilson | 57 | Wife | — | Maine |
| 24 | George Cook | 58 | Head | — | Maine |
| 25 | Dennis Sullivan THIS PERSON | 74 | Head | — | Maine |
| 26 | Mary Sullivan | 73 | Wife | — | Maine |
| 27 | Thomas Sullivan | 41 | Son | Lawyer | Maine |
| 28 | Alfred Trefcar | 45 | Head | Weaver | Maine |
| 29 | Amanda Trefcar | 42 | Wife | Spinner | Maine |
| 30 | George Trefcar | 21 | Son | Weaver | Maine |
| 31 | Rachel Trefcar | 18 | Daughter | Napper | Maine |
| 32 | Charles Roque | 28 | Head | Truck Driver | Mass. |
| 33 | Doris Roque | 27 | Wife | — | Maine |
| 34 | Chester Roque | 6 | Son | — | Maine |
| 35 | Donald Roque | 3 | Son | — | Maine |
| 36 | Joan Roque | 2 | Daughter | — | Maine |
| 37 | Oliver Lambert | 47 | Head | Painter | Maine |
| 38 | Cypore Lambert | 45 | Wife | Weaver | New Hamp. |
| 39 | Lucien Lambert | 16 | Son | — | Maine |
| 40 | Alexander Anastassoff | 24 | Head | Loom Fixer | Maine |
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)