TS
Thomas Sullivan — 1940 US Census Record
Model Tree available1940 United States Federal Census · King-County, Washington
Our Model Tree links this Thomas Sullivan across the 1920, 1930 and 1940 US Censuses in King-County, Washington (XGBoost, ~Confirmed), with identified parents Albina & Michael — first a son (b.~1908), then head of a 3-person household.
Age 32
b. ~1908
Male
Son
Born: Alaska
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | King-County, Washington |
| Surname | Sullivan |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | Alaska |
| 1935 Residence (City) | Seattle city |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | H 4 |
| Birth State | Alaska |
| Birth Country | United States |
| Birthplace (normalized) | alaska |
| Township / Ward | Seattle City |
| Est. Birth Year | ~1908 |
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 Thomas | Age | Birth yr |
|---|---|---|---|---|
| Alma Sullivan | Head | — | 63 | ~1877 |
| Mector Sullivan | Son | — | 36 | ~1904 |
| Thomas Sullivan | Son | — | 32 | ~1908 |
Census Appearances
1920
King, Washington
Son, age 13
King, Washington · implied b. ~1907 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Alaska |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Alaska |
| Birth Country | United States |
| Birthplace (normalized) | alaska |
1930
King, Washington
Son, age 23
King, Washington · implied b. ~1907 — 16 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Thomas B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Alaska |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Occupation | none |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth State | Alaska |
| Birth Country | United States |
| Birthplace (normalized) | alaska |
1940
King-County, Washington
Son, age 32
King-County, Washington · implied b. ~1908 — 3 household members
| Surname | Sullivan |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | Alaska |
| 1935 Residence (City) | Seattle city |
| Class of Worker | 0 |
| Highest Grade | H 4 |
| Birth State | Alaska |
| Birth Country | United States |
| Birthplace (normalized) | alaska |
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 Thomas Sullivan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Albina Sullivan (~0.92 confidence) and father Michael Sullivan (~0.92 confidence) and mother Alma Sullivan (~0.92 confidence) and mother Abina Sullivan (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Albina Sullivan
b. ~1875
Source mother
● Household
· direct · ~0.92
Father
Michael Sullivan
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Alma Sullivan
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Abina Sullivan
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Sullivan
Son · 1940 · age 32 · b. ~1908 · Washington
★ You are viewing this record
Sibling
Mector Sullivan
Sibling · 1940 · age 36
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 — King-County, Washington
Open full size
1940 US Federal Census — King-County, Washington
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04380-00311)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Howard A. Dunn | 53 | Head | Executive | So Dakota |
| 2 | Grace Jones | 41 | Head | Waitress | Washington |
| 3 | Chas J. Coppedge | 36 | Head | Mechanic | Montana |
| 4 | Stella Coppedge | 40 | Wife | Waitress | Washington |
| 5 | Dan Orange | 40 | Head | Manager | Alaska |
| 6 | Annette Orange | 37 | Wife | — | No Dakota |
| 7 | George E. Pierce | 32 | Head | Painter | Mississippi |
| 8 | Myrtle E. Pierce | 27 | Wife | Waitress | Iowa |
| 9 | Ralph D. Russ | 37 | Head | Bell Boy | Minnesota |
| 10 | Eugene E. Williams | 36 | Head | Business Agent | Dist of C. |
| 11 | Mistugene Williams | 28 | Wife | — | Colorado |
| 12 | Jack Burke | 43 | Head | Barber | Austria |
| 13 | Harriett A. Weedin | 46 | Head | Mailing Clerk | Nebraska |
| 14 | William T. Fulton | 63 | Head | Salesman | Canada-Eng |
| 15 | Milton Christ | 45 | Head | Cook | Greece |
| 16 | Louise Christ | 38 | Wife | Waitress | Washington |
| 17 | Yahachi Sauguki | 50 | Head | Manager | Japan |
| 18 | Tazu Sauguki | 39 | Wife | Assist Mgr | Japan |
| 19 | Mary Sauguki | 17 | Daughter | New Worker | Washington |
| 20 | Chizue Sauguki | 11 | Daughter | — | Washington |
| 21 | Jimmy Sauguki | 10 | Son | — | Washington |
| 22 | Dennis Fagan | 52 | Head | Fisherman | Newfoundland |
| 23 | Fred Evenson | 47 | Partner | Fisherman | Norway |
| 24 | Edwin Anderson | 37 | Partner | Fisherman | Sweden |
| 25 | Alma Sullivan | 63 | Head | Manager | Ireland |
| 26 | Mector John P. Sullivan | 36 | Son | Dredger | Montana |
| 27 | Thomas Sullivan THIS PERSON | 32 | Son | — | Alaska |
| 28 | Thomas Riley | 84 | Head | — | Ireland |
| 29 | John Peterson | 62 | Head | — | Sweden |
| 30 | John Nichols | 72 | Head | — | Poland |
| 31 | J. Tom Cassidy | 60 | Head | — | Wisconsin |
| 32 | Frank Mcduma | 43 | Head | Longshoreman | Oregon |
| 33 | John Mackey | 50 | Head | Rigger | New York |
| 34 | Chuz Hanson | 71 | Head | — | Finland |
| 35 | John Neilson | 55 | Head | Painter | Sweden |
| 36 | Ole Johansen | 43 | Head | Fisherman | Norway |
| 37 | Dan Mccracken | 45 | Head | Fisherman | Newfoundland |
| 38 | Marie Black | 50 | Wife | — | Wisconsin |
| 39 | Philip Black | 54 | Husband | Longshoreman | England |
| 40 | Henry Marcus | 73 | Head | — | New York |
Pedigree Summary
Thomas + 1 sibling
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)