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William Harmon — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Island-County, Washington
Our Model Tree links this William Harmon across the 1910, 1920, 1930 and 1940 US Censuses in Island-County, Washington (XGBoost, ~Confirmed) — first a head (b.~1871), then head of a 2-person household.
Age 69
b. ~1871
Male
Head
Born: West Virginia
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Island-County, Washington |
| Surname | Harmon |
| Given Name | William I. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 69 |
| Marital Status | Widowed |
| Birthplace | West Virginia |
| 1935 Residence (City) | Langley Precinct |
| 1935 Residence (County) | Island |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | West Virginia |
| Birth Country | United States |
| Birthplace (normalized) | west virginia |
| Township / Ward | Langley Precinct |
| Est. Birth Year | ~1871 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| Avis Harmon | Son | — | 37 | ~1903 |
| William Harmon | Head | — | 69 | ~1871 |
Census Appearances
1910
Island, Washington
Head, age 39
Island, Washington · implied b. ~1871 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harmon |
| Given Name | William T |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | West Virginia |
| Years Married | 8 |
| Father's Birthplace | West Virginia |
| Mother's Birthplace | West Virginia |
| Occupation | Farmer |
| Industry | Own Farm |
| Birth State | West Virginia |
| Birth Country | United States |
| Birthplace (normalized) | west virginia |
1920
Island, Washington
Head, age 49
Island, Washington · implied b. ~1871 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harmon |
| Given Name | William T. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | West Virginia |
| Father's Birthplace | West Virginia |
| Mother's Birthplace | West Virginia |
| Occupation | Farmer |
| Industry | Truck farm |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth State | West Virginia |
| Birth Country | United States |
| Birthplace (normalized) | west virginia |
1930
Island, Washington
Head, age 59
Island, Washington · implied b. ~1871 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harmon |
| Given Name | William J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 59 |
| Marital Status | Married |
| Birthplace | West Virginia |
| Age at First Marriage | 30 |
| Father's Birthplace | West Virginia |
| Mother's Birthplace | West Virginia |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 1000 |
| Veteran | No |
| Birth State | West Virginia |
| Birth Country | United States |
| Birthplace (normalized) | west virginia |
1940
Island-County, Washington
Head, age 69
Island-County, Washington · implied b. ~1871 — 2 household members
| Surname | Harmon |
| Given Name | William I. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 69 |
| Marital Status | Widowed |
| Birthplace | West Virginia |
| 1935 Residence (City) | Langley Precinct |
| 1935 Residence (County) | Island |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | West Virginia |
| Birth Country | United States |
| Birthplace (normalized) | west virginia |
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 William Harmon across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
William Harmon
Head · 1940 · age 69 · b. ~1871 · Washington
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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 — Island-County, Washington
Open full size
1940 US Federal Census — Island-County, Washington
Page Contents
35 people indexed on this census page (nara:1940:m-t0627-04342-00119)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | George F. Mcginnis | 53 | Head | Road Grader | Nebraska |
| 42 | Ruby E. Mcginnis | 47 | Wife | — | Washington |
| 43 | Arnold Mcginnis | 15 | Son | — | Washington |
| 44 | Thomas Tate | 66 | Head | — | Missouri |
| 45 | Carrie E. Tate | 67 | Wife | — | Missouri |
| 46 | Leroy C. Haag | 47 | Head | Laborer | Illinois |
| 47 | Hilda Haag | 49 | Wife | — | Sweden |
| 48 | Alfred M. Fusman | 22 | Head | Laborer | Illinois |
| 49 | Genevieve Fusman | 17 | Wife | — | Canada |
| 50 | Clarence L. Johnson | 51 | Head | Poultry Farmer | Minnesota |
| 51 | Luman C. Schminsky | 62 | Head | Laborer | Iowa |
| 52 | Ralph Schminsky | 19 | Son | Kitchen Helper | Minnesota |
| 53 | Robert E. Herring | 68 | Head | Farmer | Kansas |
| 54 | Mary L. Herring | 59 | Wife | — | Kansas |
| 55 | Benjamin M. Herring | 36 | Son | Laborer | Kansas |
| 56 | Merle Herring | 31 | Daughter | — | Kansas |
| 57 | Joan Ulrich | 12 | Grand Daughter | — | Washington |
| 58 | Vera Ulrich | 9 | Grand Daughter | — | Washington |
| 59 | Ralph W. Ford | 33 | Head | Cooking | Iowa |
| 60 | Eunice Ford | 29 | Wife | — | South Dakota |
| 61 | Robert Ford | 10 | Son | — | Washington |
| 62 | Loretta Ford | 8 | Daughter | — | Washington |
| 63 | Wilma Ford | 5 | Daughter | — | Washington |
| 64 | William I. Harmon THIS PERSON | 69 | Head | — | West Virginia |
| 65 | Avis Harmon | 37 | Son | Carpenter | Washington |
| 66 | Peter N. Anderson | 62 | Head | Farmer | Denmark |
| 67 | Sarah Anderson | 62 | Wife | — | Wisconsin |
| 68 | Eugene Anderson | 13 | Nephew | — | Washington |
| 69 | Alfred Sander | 61 | Head | Farmer | Denmark |
| 70 | Ralph Livingston | 67 | Head | Farmer | Wisconsin |
| 71 | Harriet E. Livingston | 62 | Wife | — | England |
| 72 | Charles Skelton | 26 | Head | Laborer | Washington |
| 73 | Donald Skelton | 22 | Brother | Cash | Washington |
| 74 | Robert Skelton | 17 | Brother | Working For Board & Room | Washington |
| 75 | Raymond Skelton | 13 | Brother | — | Washington |
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)