RL
Robert Larson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · King-County, Washington
Our Model Tree links this Robert Larson across the 1930 and 1940 US Censuses in King-County, Washington (XGBoost, ~Confirmed) — first a son (b.~1926), then head of a 9-person household.
Age 14
b. ~1926
Male
Son
Born: Washington
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | King-County, Washington |
| Surname | Larson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Seattle |
| 1935 Residence (County) | King |
| Additional Details | |
| Industry | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Township / Ward | Seattle |
| Est. Birth Year | ~1926 |
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 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Gerald Larson | Son | — | 19 | ~1921 |
| Albin Larson | Head | — | 49 | ~1891 |
| Anna Larson | Spouse | — | 50 | ~1890 |
| Margaret Donohue | Other | — | 25 | ~1915 |
| Mary Larson | Daughter | — | 17 | ~1923 |
| Charles Larson | Son | — | 13 | ~1927 |
| Robert Larson | Son | — | 14 | ~1926 |
| Patricia Larson | Daughter | — | 11 | ~1929 |
| Donald Larson | Son | — | 22 | ~1918 |
Census Appearances
1930
King, Washington
Son, age 3
King, Washington · implied b. ~1927 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Larsen |
| Given Name | Robert Lee |
| Relationship to Head | Son |
| Sex | M |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Washington |
| Mother's Birthplace | Washington |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
King-County, Washington
Son, age 14
King-County, Washington · implied b. ~1926 — 9 household members
| Surname | Larson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Seattle |
| 1935 Residence (County) | King |
| Industry | 0 |
| Highest Grade | No 8 |
| 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 Larson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Larson
Son · 1940 · age 14 · b. ~1926 · Washington
★ You are viewing this record
Sibling
Mary Larson
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gerald Larson
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Larson
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Larson
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Larson
Sibling · 1940 · age 11
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
39 people indexed on this census page (nara:1940:m-t0627-04379-00622)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Elizabeth Brookhouse | 34 | Sister | Teacher | Oregon |
| 42 | Luke J. Estely | 58 | Head | Millwright | Missouri |
| 43 | Rose D. Estely | 48 | Wife | — | Missouri |
| 44 | Mary Agnes Estely | 21 | Daughter | Typist | Iowa |
| 45 | Kathleen Estely | 19 | Daughter | — | Iowa |
| 46 | Rosalie Estely | 17 | Daughter | — | Iowa |
| 47 | Samuel J. (A?) Slack | 59 | Roomer | File Clerk | Iowa |
| 48 | Fred E. Robinson | 28 | Head | Salesclerk | Colorado |
| 49 | Doris L. Robinson | 26 | Wife | — | Colorado |
| 50 | Merritt Robinson | 1 | Son | — | Washington |
| 51 | Kate Harry | 74 | Head | Domestic | New York |
| 52 | Manville Booth | 64 | Head | Maintenance | Washington |
| 53 | Lillian Booth | 58 | Wife | — | Michigan |
| 54 | Josephine Booth | 35 | Daughter | Wrapper | Washington |
| 55 | Ruth Booth | 33 | Daughter | Saleslady | Washington |
| 56 | Manville Jr. Booth | 30 | Son | Clerk | Washington |
| 57 | Louis Booth | 27 | Son | Gardener | Canada Eng |
| 58 | Ray Eddy | 45 | Head | Truck Driver | Canada Eng |
| 59 | Louise Eddy | 42 | Wife | — | Washington |
| 61 | Albin H. Larson | 49 | Head | Contract Clerk | Minnesota |
| 62 | Anna D. Larson | 50 | Wife | — | Montana |
| 63 | Donald Larson | 22 | Son | Laborer | Montana |
| 64 | Gerald N. Larson | 19 | Son | Messenger | Montana |
| 65 | Mary Jane Larson | 17 | Daughter | — | Montana |
| 66 | Robert Larson THIS PERSON | 14 | Son | — | Washington |
| 67 | Charles Larson | 13 | Son | — | Washington |
| 68 | Patricia Larson | 11 | Daughter | — | Washington |
| 69 | Margaret Donohue | 25 | Lodger | Cashier | Arkansas |
| 70 | Sarah O. Mcrior | 66 | Head | — | Nebraska |
| 71 | Thomas Mcrior | 33 | Son | Mechanic | Washington |
| 72 | Winfield Mcrior | 30 | Son | Mechanic | Washington |
| 73 | Eloise Mcrior | 9 | Granddaughter | — | Washington |
| 74 | Thomas Mcrior | 7 | Grandson | — | Washington |
| 75 | Nannie Hall | 74 | Head | — | Illinois |
| 76 | Helga Arthur Wold | 60 | Head | — | Norway |
| 77 | Harry O. Ottesen | 17 | Son | — | Norway |
| 78 | Margaret Spain | 61 | Head | — | Scotland |
| 79 | William Nelson | 42 | Head | Mechanic | Wisconsin |
| 80 | Coletta Nelson | 40 | Wife | — | Wisconsin |
Related Census Records
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)