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William Blake — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Warren-County, Iowa
Our Model Tree links this William Blake across the 1920, 1930 and 1940 US Censuses in Warren-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1879), then head of a 3-person household.
Age 61
b. ~1879
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Warren-County, Iowa |
| Surname | Blake |
| Given Name | William |
| Relationship to Head | HEAD |
| Sex | M |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Palmyra Twp |
| 1935 Residence (County) | Warren |
| Additional Details | |
| Occupation | Farming |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farming |
| Township / Ward | Palmyra Twp |
| Est. Birth Year | ~1879 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| William Blake | Head | — | 61 | ~1879 |
| Maye Blake | Spouse | — | 53 | ~1887 |
| Gryll Blake | Son | — | 22 | ~1918 |
Census Appearances
1920
Warren, Iowa
Head, age 41
Warren, Iowa · implied b. ~1879 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Blake |
| Given Name | William H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Indiana |
| Occupation | Farmer |
| Industry | General farm |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | Rent |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Warren, Iowa
Head, age 51
Warren, Iowa · implied b. ~1879 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Blake |
| Given Name | William H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 34 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Indiana |
| Occupation | Farmer |
| Industry | General farm |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Warren-County, Iowa
Head, age 61
Warren-County, Iowa · implied b. ~1879 — 3 household members
| Surname | Blake |
| Given Name | William |
| Relationship to Head | HEAD |
| Sex | M |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Palmyra Twp |
| 1935 Residence (County) | Warren |
| Occupation | Farming |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| 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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
William Blake
Head · 1940 · age 61 · b. ~1879 · 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 — Warren-County, Iowa
Open full size
1940 US Federal Census — Warren-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01210-00295)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Owen Crumly | 71 | HEAD | Unable | Iowa |
| 2 | Alyce Crumly | 67 | WIFE | House Wife | Iowa |
| 3 | Alice Adams | 73 | MOTHER | House Keeper | Iowa |
| 4 | Stella Adams | 44 | DAUGHTER | — | Nebraska |
| 5 | William Blake THIS PERSON | 61 | HEAD | Farming | Iowa |
| 6 | Maye Blake | 53 | WIFE | House Wife | Iowa |
| 7 | Gryll Blake | 22 | SON | Farming | Iowa |
| 8 | Wayne Darr | 47 | HEAD | Farming | Iowa |
| 9 | Maude Darr | 43 | WIFE | House Wife | Iowa |
| 10 | Doris Darr | 24 | DAUGHTER | House Wife Daughter | Iowa |
| 11 | Guy Darr | 20 | SON | Farming | Iowa |
| 12 | Charles Darr | 15 | SON | Help At Home | Iowa |
| 13 | Dale Darr | 10 | SON | — | Iowa |
| 14 | Richard Jones | 45 | HEAD | Farm Hand | Kansas |
| 15 | Harriet Jones | 45 | WIFE | House Wife | Iowa |
| 16 | W. M. Brown | 51 | HEAD | Farming | Iowa |
| 17 | Margaret Brown | 49 | WIFE | House Wife | Iowa |
| 18 | Elijah Dunn | 19 | HAND | Farm Hand | Iowa |
| 19 | Edwin Heffy | 69 | HEAD | Farming | Iowa |
| 20 | Anna Heffy | 73 | WIFE | House Wife | Iowa |
| 21 | Oscar Nickson | 49 | HEAD | Farming | Indiana |
| 22 | Mildred Nickson | 44 | WIFE | House Wife | Iowa |
| 23 | Robert Nickson | 25 | SON | Farming | Iowa |
| 24 | Richard Nickson | 20 | SON | Farming | Iowa |
| 25 | Sue Nickson | 7 | DAUGHTER | — | Iowa |
| 26 | Pearl Wiley | 32 | HEAD | Farming | Iowa |
| 27 | Ellen Wiley | 31 | WIFE | House Wife | Iowa |
| 28 | Jimmie Wiley | 7 | SON | — | Iowa |
| 29 | Charlotte Wiley | 3 | DAUGHTER | — | Iowa |
| 30 | Robert Kettles | 20 | HAND | Farm Hand | Iowa |
| 31 | Gerald Davey | 34 | HEAD | Farming | Iowa |
| 32 | Leo Brennan | 44 | HEAD | Farming | Iowa |
| 33 | Evelyn Brennan | 39 | WIFE | House Wife | Iowa |
| 34 | Bernard Brennan | 17 | SON | Farm Son | Iowa |
| 35 | Leona Brennan | 14 | DAUGHTER | — | Iowa |
| 36 | Richard Brennan | 11 | SON | — | Iowa |
| 37 | Gerry Butterfield | 67 | HEAD | Farming | Iowa |
| 38 | Laura Butterfield | 55 | WIFE | House Wife | Iowa |
| 39 | Elliott Miller | 52 | HEAD | Farming | Iowa |
| 40 | Ida May Miller | 51 | WIFE | House Wife | Indiana |
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)