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William Boyer — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Tuolumne-County, California
Our Model Tree links this William Boyer across the 1930 and 1940 US Censuses in Tuolumne-County, California (XGBoost, ~Confirmed) — first a head (b.~1903), then head of a 6-person household.
Age 37
b. ~1903
Male
Head
Born: Washington
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Tuolumne-County, California |
| Surname | Boyer |
| Given Name | William M. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Washington |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Tuolumne |
| Additional Details | |
| Occupation | Mechanic |
| Industry | Machine Shop |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 336 |
| Highest Grade | No 7 |
| 1935 Residence | California |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Occupation | Mechanic |
| Township / Ward | Township 5 |
| 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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| William Boyer | Head | — | 37 | ~1903 |
| Lyle Boyer | Son | — | 11 | ~1929 |
| Myrtle Boyer | Spouse | — | 39 | ~1901 |
| Naverne Boyer | Daughter | — | 5 | ~1935 |
| Nadine Boyer | Daughter | — | 10 | ~1930 |
| Lowell Boyer | Son | — | 11 | ~1929 |
Census Appearances
1930
Tuolumne, California
Head, age 27
Tuolumne, California · implied b. ~1903 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Boyer |
| Given Name | William H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Washington |
| Age at First Marriage | 24 |
| Father's Birthplace | United States |
| Mother's Birthplace | Iowa |
| Occupation | Welder |
| Industry | Railroad Shop |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 20 |
| Radio Set | R |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
Tuolumne-County, California
Head, age 37
Tuolumne-County, California · implied b. ~1903 — 6 household members
| Surname | Boyer |
| Given Name | William M. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Washington |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Tuolumne |
| Occupation | Mechanic |
| Industry | Machine Shop |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 336 |
| Highest Grade | No 7 |
| 1935 Residence | California |
| 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 William Boyer across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
William Boyer
Head · 1940 · age 37 · b. ~1903 · California
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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 — Tuolumne-County, California
Open full size
1940 US Federal Census — Tuolumne-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00362-00314)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Faust Max Conti | 59 | Partner | Truck Driver | New York |
| 2 | Joseph Butler | 67 | Head | — | California |
| 3 | Rubin Plummer | 38 | Head | Tapper | California |
| 4 | Robert T. Tidwell | 45 | Head | Stone Mason | Texas |
| 5 | Velma C. Tidwell | 41 | Wife | — | Mississippi |
| 6 | D. Donovan Tidwell | 14 | Son | — | Oklahoma |
| 7 | Wadewell R. Leach | 43 | Head | Janitor | Washington |
| 8 | Alice C. Leach | 41 | Wife | — | Missouri |
| 9 | Maxine J. Leach | 12 | Daughter | — | Idaho |
| 10 | Frank A. Boyer | 65 | Head | — | Pennsylvania |
| 11 | Ella May Boyer | 58 | Wife | Nurse | Wisconsin |
| 12 | Helen May Boyer | 18 | Daughter | — | Oregon |
| 13 | William M. Boyer THIS PERSON | 37 | Head | Mechanic | Washington |
| 14 | Myrtle A. Boyer | 39 | Wife | — | California |
| 15 | Lowell E. Boyer | 11 | Son | — | California |
| 16 | Lyle E. Boyer | 11 | Son | — | California |
| 17 | Nadine C. Boyer | 10 | Daughter | — | California |
| 18 | Naverne M. Boyer | 5 | Daughter | — | California |
| 19 | Andrew E. Poor | 64 | Head | Range Operator | California |
| 20 | Beatrice S. Poor | 19 | Daughter | — | California |
| 21 | Daniel R. Swinford | 24 | Head | — | Indiana |
| 22 | Jean C. Swinford | 24 | Wife | — | California |
| 23 | John Hartman | 77 | Head | — | Finland |
| 24 | Thomas L. Williams | 70 | Head | — | California |
| 25 | Annie M. Williams | 49 | Wife | — | California |
| 26 | Leslie Williams | 22 | Son | Salesman | California |
| 27 | William R. Williams | 19 | Son | Laborer | California |
| 28 | Jack E. Jr. Sullivan | 26 | Head | Laborer | California |
| 29 | Virginia E. Sullivan | 27 | Wife | — | California |
| 30 | Horace A. Choler | 23 | Head | Laborer | California |
| 31 | Wreatha M. Choler | 20 | Wife | — | New York |
| 32 | Judy Ann Choler | 3 | Daughter | — | California |
| 33 | Gordon H. Choler | 1 | Son | — | California |
| 34 | Earl L. Blankenship | 30 | Head | Miner | Kansas |
| 35 | Helen C. Blankenship | 27 | Wife | — | California |
| 36 | Melvin G. Boulter | 49 | Head | Ditchtender | California |
| 37 | Edith E. Boulter | 48 | Wife | — | California |
| 38 | Fred H. Kahl | 33 | Head | Laborer | California |
| 39 | Lulie F. Kahl | 24 | Wife | — | California |
| 40 | Gerald L. Kahl | 5 | Son | — | California |
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)