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William Blake — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mitchell-County, Iowa
Our Model Tree links this William Blake across the 1930 and 1940 US Censuses in Mitchell-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1896), then head of a 13-person household.
Age 44
b. ~1896
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Mitchell-County, Iowa |
| Surname | Blake |
| Given Name | William |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Mitchell |
| Additional Details | |
| Occupation | farmer |
| Industry | farm |
| Class of Worker | E |
| Hours Worked | 70 |
| Income (1939) | 0 |
| Highest Grade | 7 |
| 1935 Residence | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farmer |
| Township / Ward | St Ansgar Twp |
| Est. Birth Year | ~1896 |
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 |
|---|---|---|---|---|
| Ethel Blake | Daughter | — | 9 | ~1931 |
| Alex Blake | Son | — | 18 | ~1922 |
| William Blake | Son | — | — | |
| Theodore Blake | Son | — | 1 | ~1939 |
| Alverna Blake | Daughter | — | 13 | ~1927 |
| John Blake | Son | — | 3 | ~1937 |
| Sonett Blake | Daughter | — | 7 | ~1933 |
| William Blake | Head | — | 44 | ~1896 |
| Adrian Blake | Son | — | 12 | ~1928 |
| Rosemary Blake | Daughter | — | 10 | ~1930 |
| Gertrude Blake | Spouse | — | 43 | ~1897 |
| Annette Blake | Daughter | — | 5 | ~1935 |
| Marjorie Blake | Daughter | — | 15 | ~1925 |
Census Appearances
1930
Mitchell, Iowa
Head, age 34
Mitchell, Iowa · implied b. ~1896 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Blake |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 22 |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | Farmer |
| Industry | General farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Mitchell-County, Iowa
Head, age 44
Mitchell-County, Iowa · implied b. ~1896 — 13 household members
| Surname | Blake |
| Given Name | William |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Mitchell |
| Occupation | farmer |
| Industry | farm |
| Class of Worker | E |
| Hours Worked | 70 |
| Income (1939) | 0 |
| Highest Grade | 7 |
| 1935 Residence | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Blake across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Blake
Head · 1940 · age 44 · b. ~1896 · Iowa
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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 — Mitchell-County, Iowa
Open full size
1940 US Federal Census — Mitchell-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01183-00790)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Virginia Mullenbach | 9 | daughter | — | Iowa |
| 42 | J. H. Welch | 56 | head | Farmer | Wisconsin |
| 43 | Ida Welch | 54 | wife | — | Wisconsin |
| 44 | Glenn Welch | 28 | son | Farm Laborer | Iowa |
| 45 | Iren Welch | 11 | son | — | Iowa |
| 46 | Otto Beeman | 20 | head | Hired Man | Iowa |
| 47 | Clara Beeman | 17 | wife | — | Iowa |
| 48 | Gerald Beeman | 2 | son | — | Iowa |
| 49 | H. E. Cummings | 70 | head | Farmer | Iowa |
| 50 | H. F. Cummings | 70 | brother | Farmer | Iowa |
| 51 | Gilbert Cummings | 40 | nephew | Farmer | Iowa |
| 52 | Leona Cummings | 25 | wife | — | Illinois |
| 53 | Gloria Cummings | 4 | daughter | — | Iowa |
| 54 | Joyce Cummings | 2 | daughter | — | Iowa |
| 55 | Ralph Cummings | 25 | nephew | Farmer | Iowa |
| 56 | W. Bird | 53 | head | Farmer | Illinois |
| 57 | Ada D. Bird | 34 | niece | — | Iowa |
| 58 | Billie Bird | 28 | son | Farm Laborer | Iowa |
| 59 | Conrad S. Halvorson | 34 | head | Farmer | Iowa |
| 60 | Hazel Halvorson | 33 | wife | — | Minnesota |
| 61 | Arlene Halvorson | 10 | daughter | — | Iowa |
| 62 | Jo Ann Halvorson | 8 | daughter | — | Iowa |
| 63 | Constance Halvorson | 2 | daughter | — | Iowa |
| 64 | William Blake THIS PERSON | 44 | head | Farmer | Iowa |
| 65 | Gertrude Blake | 43 | wife | — | Iowa |
| 66 | Alex Blake | 18 | son | Farm Labor | Iowa |
| 67 | Marjorie Blake | 15 | daughter | — | Iowa |
| 68 | Alverna Blake | 13 | daughter | — | Iowa |
| 69 | Adrian Blake | 12 | son | — | Iowa |
| 70 | Rosemary Blake | 10 | daughter | — | Iowa |
| 71 | Ethel Blake | 9 | daughter | — | Iowa |
| 72 | Sonett Blake | 7 | daughter | — | Iowa |
| 73 | Annette Blake | 5 | daughter | — | Iowa |
| 74 | John Blake | 3 | son | — | Iowa |
| 75 | Theodore Blake | 1 | son | — | Iowa |
| 76 | William Jr. Blake | None | son | — | Iowa |
| 77 | H. C. Held | 35 | head | Farmer | Iowa |
| 78 | Mabel Held | 36 | wife | — | Iowa |
| 79 | Virginia Held | 15 | daughter | — | Iowa |
| 80 | Darlene Held | 11 | daughter | — | Iowa |
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)