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William Harmon — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Roosevelt-County, Montana
Our Model Tree links this William Harmon across the 1930 and 1940 US Censuses in Roosevelt-County, Montana (XGBoost, ~Confirmed) — first a head (b.~1903), then head of a 13-person household.
Age 37
b. ~1903
Male
Head
Born: Kentucky
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Roosevelt-County, Montana |
| Surname | Harmon |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Roosevelt |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | E |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Montana |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Farmer |
| Township / Ward | School District 12 |
| Est. Birth Year | ~1903 |
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.
13 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Emma Harmon | Daughter | — | 10 | ~1930 |
| Edith Harmon | Daughter | — | 12 | ~1928 |
| Linda Harmon | Daughter | — | 9 | ~1931 |
| Galan Harmon | Son | — | 2 | ~1938 |
| Agatha Harmon | Daughter | — | 7 | ~1933 |
| Isadore Herel | Other | — | 26 | ~1914 |
| Janice Harmon | Daughter | — | 3 | ~1937 |
| Rita Harmon | Daughter | — | 5 | ~1935 |
| Myrna Harmon | Daughter | — | 1 | ~1939 |
| Josephine Miller | Other | — | 61 | ~1879 |
| William Harmon | Head | — | 37 | ~1903 |
| Willie Sherick | Other | — | 24 | ~1916 |
| Gladys Harmon | Spouse | — | 35 | ~1905 |
Census Appearances
1930
Roosevelt, Montana
Head, age 27
Roosevelt, Montana · implied b. ~1903 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harmon |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Age at First Marriage | 24 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Kentucky |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | VVVV O |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Veteran | No |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Roosevelt-County, Montana
Head, age 37
Roosevelt-County, Montana · implied b. ~1903 — 13 household members
| Surname | Harmon |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Roosevelt |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | E |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Montana |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
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 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
William Harmon
Head · 1940 · age 37 · b. ~1903 · Montana
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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 — Roosevelt-County, Montana
Open full size
1940 US Federal Census — Roosevelt-County, Montana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02228-00610)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Oscar Ross | 56 | Head | Farmer | Minnesota |
| 2 | Sadie Ross | 53 | Wife | — | Pennsylvania |
| 3 | Lester Ross | 26 | Son | Farmer | Montana |
| 4 | Alice Ross | 27 | Daughter | Operator | Montana |
| 5 | Paul Ross | 21 | Son | Laborer | Montana |
| 6 | Clarence Ross | 19 | Son | Laborer | Montana |
| 7 | John Marble | 75 | Head | Farmer | Illinois |
| 8 | Meddie P. Simard | 60 | Head | Farmer | Canada French |
| 9 | Bertha M. Simard | 54 | Wife | — | North Dakota |
| 10 | Dumont Simard | 20 | Son | Laborer | Montana |
| 11 | Glen D. Simard | 15 | Son | — | Montana |
| 12 | William Harmon THIS PERSON | 37 | Head | Farmer | Kentucky |
| 13 | Gladys Harmon | 35 | Wife | — | Montana |
| 14 | Edith C. Harmon | 12 | Daughter | — | Montana |
| 15 | Emma J. Harmon | 10 | Daughter | — | Montana |
| 16 | Linda L. Harmon | 9 | Daughter | — | Montana |
| 17 | Agatha I. Harmon | 7 | Daughter | — | Montana |
| 18 | Rita C. Harmon | 5 | Daughter | — | Montana |
| 19 | Janice E. Harmon | 3 | Daughter | — | Montana |
| 20 | Galan W. Harmon | 2 | Son | — | Montana |
| 21 | Myrna D. Harmon | 1 | Daughter | — | Montana |
| 22 | Josephine O. Miller | 61 | Mother-in-law | — | Montana |
| 23 | Willie Sherick | 24 | Hired hand | Laborer | Montana |
| 24 | Isadore G. Herel | 26 | Hired hand | Laborer | Canada French |
| 25 | Irvin Ellis | 36 | Head | Laborer | North Dakota |
| 26 | Carl A. Harmon | 34 | Head | Farmer | Kentucky |
| 27 | Caren Harmon | 28 | Wife | — | North Dakota |
| 28 | Velma Harmon | 6 | Daughter | — | Montana |
| 29 | Carl Harmon | 4 | Son | — | North Dakota |
| 30 | Dean Harmon | 3 | Son | — | Montana |
| 31 | Charles W. | 70 | Head | — | Germany |
| 32 | Harriet | 55 | Wife | — | Kentucky |
| 33 | M. A. Crumb | 63 | Head | — | Indiana |
| 34 | Randolph Crumb | 31 | Son | Farmer | Arkansas |
| 35 | Garrett Crumb | 29 | Son | — | Arkansas |
| 36 | Theodore Hermon | 60 | Head | Farmer | Minnesota |
| 37 | Clarence Torgerson | 43 | Head | Fireman | Minnesota |
| 38 | Ethel Torgerson | 36 | Wife | — | Montana |
| 39 | Robert Torgerson | 14 | Son | — | Montana |
| 40 | Norman Torgerson | 12 | Son | — | Montana |
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)