RS
Robert Sullivan — 1940 US Census Record
Model Tree available1940 United States Federal Census · King-County, Washington
Our Model Tree links this Robert Sullivan across the 1920, 1930 and 1940 US Censuses in King-County, Washington (XGBoost, ~Confirmed), with identified parents George & Robert — first a son (b.~1915), then head of a 3-person household.
Age 25
b. ~1915
Male
Son
Born: Washington
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | King-County, Washington |
| Surname | Sullivan |
| Given Name | Robert E. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Seattle City |
| 1935 Residence (County) | King |
| Additional Details | |
| Occupation | Clerk |
| Industry | Cigar Store |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 2207 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Occupation | Clerk |
| Township / Ward | Seattle City |
| Est. Birth Year | ~1915 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Robert Sullivan | Head | — | 55 | ~1885 |
| Robert Sullivan | Son | — | 25 | ~1915 |
| Florence Sullivan | Spouse | — | 52 | ~1888 |
Census Appearances
1920
King, Washington
Son, age 4
King, Washington · implied b. ~1916 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Washington |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1930
King, Washington
Son, age 14
King, Washington · implied b. ~1916 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sullivan |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Washington |
| Can Read/Write | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
King-County, Washington
Son, age 25
King-County, Washington · implied b. ~1915 — 3 household members
| Surname | Sullivan |
| Given Name | Robert E. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Seattle City |
| 1935 Residence (County) | King |
| Occupation | Clerk |
| Industry | Cigar Store |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 2207 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
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 Robert Sullivan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father George Sullivan (~0.92 confidence) and father Robert Sullivan (~0.92 confidence) and father Geo Sullivan (~0.92 confidence) and mother Florence Sullivan (~0.92 confidence) and mother Mary Sullivan (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
George Sullivan
b. ~1885
Source father
● Household
· direct · ~0.92
Father
Robert Sullivan
b. ~1885
Source father
● Household
· direct · ~0.92
Father
Geo Sullivan
b. ~1887
Source father
● Household
· direct · ~0.92
Mother
Florence Sullivan
b. ~1888
Source mother
● Household
· direct · ~0.92
Mother
Mary Sullivan
b. ~1892
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Sullivan
Son · 1940 · age 25 · b. ~1915 · Washington
★ You are viewing this record
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-t0627-04376-00691)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Robert B. Ross | 30 | Head | Clerk | Washington |
| 42 | Marjorie Ross | 30 | Wife | Nurse | Michigan |
| 43 | Charles Irwin | 53 | Head | Contact Man | England |
| 44 | Caroline Irwin | 53 | Wife | — | Germany |
| 45 | Henry Youngquist | 40 | Lodger | Owner | Washington |
| 46 | Youngquist | None | — | — | — |
| 47 | Henry P. Bunton | 29 | Head | Steel Cutter | Washington |
| 48 | Marie F. Bunton | 28 | Wife | — | Oregon |
| 49 | Thomas A. Bunton | 6 | Son | — | Washington |
| 50 | Diane L. Bunton | 5 | Daughter | — | Washington |
| 51 | Hilda Kruger | 60 | Head | — | Washington |
| 52 | Herbert H. Griffiths | 60 | Head | Power Company | Canada English |
| 53 | Alma Griffiths | 49 | Wife | — | Missouri |
| 54 | Lorne L. Winchester | 41 | Head | Dispatcher | Wisconsin |
| 55 | Lorne Winchester | 16 | Son | — | Washington |
| 56 | A. Walker Lundberg | 42 | Head | Superintendent | Washington |
| 57 | Marie J. Lundberg | 38 | Wife | — | California |
| 58 | Mavritz Mechelsen | 62 | Head | Salesman | Sweden |
| 59 | Hedvig M. Mechelsen | 52 | Wife | — | Sweden |
| 60 | Helen Marie Mechelsen | 20 | Daughter | Saleslady | Minnesota |
| 61 | Harlan M. Mechelsen | 19 | Son | — | Washington |
| 62 | Harold H. Wasson | 37 | Head | Owner | Washington |
| 63 | Evelyn Wasson | 29 | Wife | — | California |
| 64 | Karen Wasson | 3 | Daughter | — | Washington |
| 65 | Maxine Darby | 20 | Head | Housework | Alaska |
| 66 | Ruth Darby | 15 | Sister | — | Washington |
| 67 | Howard O. Anthes | 44 | Head | Salesman | Washington |
| 68 | Clara Anthes | 44 | Wife | — | Iowa |
| 69 | Jack P. Pabb | 21 | Nephew | Apprentice | Washington |
| 70 | Gordon F. Pabb | 14 | Nephew | — | Washington |
| 71 | Robert Nelson | 60 | Head | Engineer | Wisconsin |
| 72 | Hulda Nelson | 52 | Wife | — | Wisconsin |
| 73 | Peter M. Peterson | 52 | Head | Mail Service | North Dakota |
| 74 | Gertrude Peterson | 22 | Daughter | — | North Dakota |
| 75 | Robert E. Sullivan | 55 | Head | Cigar | Canada English |
| 76 | Florence A. Sullivan | 52 | Wife | — | New York |
| 77 | Robert E. Jr. Sullivan THIS PERSON | 25 | Son | Clerk | Washington |
| 78 | Phiberta Stoyer | 58 | Head | — | Canada English |
| 79 | Edith G. Stoyer | 21 | Daughter | Clerk | Washington |
| 80 | Ida B. Howard | 64 | Head | Laundry Work | Texas |
Pedigree Summary
Robert
Gen 1 · 5 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)