HN
Harold Nelson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Pierce-County, Washington
Our Model Tree links this Harold Nelson across the 1910, 1920, 1930 and 1940 US Censuses in Pierce-County, Washington (XGBoost, ~Confirmed), with identified parents A & Andrew — first a son (b.~1906), then head of a 2-person household.
Age 34
b. ~1906
Male
Son
Born: Washington
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Pierce-County, Washington |
| Surname | Nelson |
| Given Name | Harold W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Tacoma City |
| 1935 Residence (County) | Pierce |
| Additional Details | |
| Occupation | Truck Driver |
| Industry | Furniture Factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 205 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Occupation | Truck Driver |
| Township / Ward | Tacoma City |
| Est. Birth Year | ~1906 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Harold | Age | Birth yr |
|---|---|---|---|---|
| Andy Nelson | Head | — | 75 | ~1865 |
| Harold Nelson | Son | — | 34 | ~1906 |
Census Appearances
1910
Pierce, Washington
Son, age 4
Pierce, Washington · implied b. ~1906 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Harold W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1920
Pierce, Washington
Son, age 13
Pierce, Washington · implied b. ~1907 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | School |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1930
Pierce, Washington
Son, age 24
Pierce, Washington · implied b. ~1906 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Harold W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Truck Driver |
| Industry | Roofing |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
Pierce-County, Washington
Son, age 34
Pierce-County, Washington · implied b. ~1906 — 2 household members
| Surname | Nelson |
| Given Name | Harold W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Tacoma City |
| 1935 Residence (County) | Pierce |
| Occupation | Truck Driver |
| Industry | Furniture Factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 205 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| 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 Harold Nelson across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father A Nelson (~0.92 confidence) and father Andrew Nelson (~0.92 confidence) and father Andy Nelson (~0.92 confidence) and mother Ellen Nelson (~0.92 confidence) and father B Nelson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
A Nelson
b. ~1864
Source father
● Household
· direct · ~0.92
Father
Andrew Nelson
b. ~1865
Source father
● Household
· direct · ~0.92
Father
Andy Nelson
b. ~1865
Source father
● Household
· direct · ~0.92
Mother
Ellen Nelson
b. ~1865
Source mother
● Household
· direct · ~0.92
Father
B Nelson
b. ~1866
Source father
● Household
· direct · ~0.92
This person
Anchor record
Harold Nelson
Son · 1940 · age 34 · b. ~1906 · 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 — Pierce-County, Washington
Open full size
1940 US Federal Census — Pierce-County, Washington
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04388-00786)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Maki Kaneko | 54 | Head | Laborer | Hawaiian Isls |
| 2 | Gust Limperes | 65 | Head | — | Greece |
| 3 | Ole Jackson | 49 | Head | Fisherman | Norway |
| 4 | John Olson | 49 | Head | Fisherman | Norway |
| 5 | Daniel Swirth | 32 | Head | Machine Hand | Washington |
| 6 | George Atkinson | 40 | Head | Bookkeeper | Washington |
| 7 | Carl A. Rollson | 54 | Head | Longshoreman | Minnesota |
| 8 | John Holmes | 57 | Head | Longshoreman | Sweden |
| 9 | John Dahlquist | 56 | Head | Tailor | Sweden |
| 10 | Yoshio Harikami | 52 | Head | Proprietor | Japan |
| 11 | Masa Harikami | 47 | Wife | Proprietor | Japan |
| 12 | Louise Harikami | 17 | Daughter | — | Washington |
| 13 | Andy W. Nelson | 75 | Head | — | Sweden |
| 14 | Harold W. Nelson THIS PERSON | 34 | Son | Truck Driver | Washington |
| 15 | Clmer Hanna | 39 | Head | Laborer | Iowa |
| 16 | Oscar Kalin | 58 | Head | Longshoreman | Finland |
| 17 | Frank Kasson | 52 | Head | Longshoreman | Sweden |
| 18 | James Carr | 62 | Head | Longshoreman | Canada English |
| 19 | Hakuso Ji | 58 | Head | Proprietor | Japan |
| 20 | Ritsuyo Ji | 41 | Wife | — | Japan |
| 21 | Kayoko Ji | 11 | Daughter | — | Washington |
| 22 | Nabuko Ji | 11 | Daughter | — | Washington |
| 23 | George Godley | 51 | Head | Gardener | England |
| 24 | John Kouch | 65 | Head | — | Austria |
| 25 | Seitaro Nakao | 57 | Head | Proprietor | Japan |
| 26 | Misaka Nakao | 42 | Wife | — | Japan |
| 27 | Kiyoshi Nakao | 15 | Son | New Worker | Washington |
| 28 | Charles Kristovich | 46 | Head | Laborer | Yugoslavia |
| 29 | Ka Kawamata | 61 | Head | Proprietor | Japan |
| 30 | Uta Ka Kawamata | 56 | Wife | — | Japan |
| 31 | Aiko Ka Kawamata | 30 | Son | — | Washington |
| 32 | Sami Ka Kawamata | 26 | Son | Salesman | Washington |
| 33 | Yatu Ka Kawamata | 20 | Son | Proprietor | Washington |
| 34 | Hachichi Noritake | 65 | Head | Laborer | Japan |
| 35 | Kiyono Noritake | 43 | Wife | — | Japan |
| 36 | Yoshio Noritake | 21 | Son | — | Washington |
| 37 | Chiharu Noritake | 15 | Daughter | — | Washington |
| 38 | Shizuko Namba | 40 | Head | Saleswoman | Japan |
| 39 | Jack K. Namba | 15 | Son | New Worker | Washington |
| 40 | Masao Namba | 14 | Daughter | New Worker | Washington |
Pedigree Summary
Harold
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)