WC
William Case — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hennepin-County, Minnesota
Our Model Tree links this William Case across the 1930 and 1940 US Censuses in Hennepin-County, Minnesota (XGBoost, ~Confirmed) — first a son (b.~1930), then head of a 10-person household.
Age 10
b. ~1930
Male
Son
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hennepin-County, Minnesota |
| Surname | Case |
| Given Name | William James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Maple Grove |
| 1935 Residence (County) | Hennepin |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | G 3 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Township / Ward | Maple Grove |
| Est. Birth Year | ~1930 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Beatrice Case | Daughter | — | 14 | ~1926 |
| Marjorie Case | Daughter | — | 5 | ~1935 |
| Mabel Case | Daughter | — | 21 | ~1919 |
| William Case | Son | — | 10 | ~1930 |
| Leona Case | Spouse | — | 47 | ~1893 |
| Leslie Case | Son | — | 26 | ~1914 |
| Henry Case | Son | — | 16 | ~1924 |
| Carol Case | Daughter | — | 1 | ~1939 |
| Violet Case | Daughter | — | 12 | ~1928 |
| Toby Case | Head | — | 48 | ~1892 |
Census Appearances
1930
Hennepin, Minnesota
Son, age
Hennepin, Minnesota · implied b. ~1930 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Case |
| Given Name | William J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Age at First Marriage | 0 |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Hennepin-County, Minnesota
Son, age 10
Hennepin-County, Minnesota · implied b. ~1930 — 10 household members
| Surname | Case |
| Given Name | William James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Maple Grove |
| 1935 Residence (County) | Hennepin |
| Income (1939) | 0 |
| Highest Grade | G 3 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 Case across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Case
Son · 1940 · age 10 · b. ~1930 · Minnesota
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Sibling
Violet Case
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marjorie Case
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mabel Case
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leslie Case
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carol Case
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Henry Case
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Beatrice Case
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Hennepin-County, Minnesota
Open full size
1940 US Federal Census — Hennepin-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01925-00218)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joyce Caroline | 13 | Daughter | — | Minnesota |
| 2 | Jean Caroline | 11 | Daughter | — | Minnesota |
| 3 | Albert Caroline | 8 | Son | — | Minnesota |
| 4 | Peter Rougier | 78 | Head | Farmer | Minnesota |
| 5 | Clementine Rougier | 55 | Wife | — | Minnesota |
| 6 | James Rougier | 22 | Son | Farm Laborer | Minnesota |
| 7 | William Curtis | 62 | Head | Farmer | Minnesota |
| 8 | May Curtis | 62 | Wife | — | Minnesota |
| 9 | Edward Schmeier | 44 | Hired hand | Farm Laborer | Nebraska |
| 10 | Bernard Holscher | 55 | Head | Farmer | Minnesota |
| 11 | Ella Holscher | 51 | Wife | — | Minnesota |
| 12 | Elva Holscher | 25 | Daughter | House Work | Minnesota |
| 13 | Gerald Holscher | 4 | Son | — | Minnesota |
| 14 | Ruth Ted Fossum | 34 | Head | Farmer | Minnesota |
| 15 | Katherine Fossum | 25 | Wife | — | Minnesota |
| 16 | Janet Fossum | 12 | Daughter | — | Minnesota |
| 17 | Herman Ruthe | 70 | Head | — | Germany |
| 18 | Attelea Ruthe | 63 | Wife | — | Germany |
| 19 | John Thomas Lucas | 62 | Head | Superintendent | Minnesota |
| 20 | Effie Mae Lucas | 65 | Wife | — | Wisconsin |
| 21 | Ivan Heide | 43 | Head | Farmer | North Dakota |
| 22 | Blanche Heide | 44 | Wife | — | Minnesota |
| 23 | Kingsley Heide | 22 | Son | Farm Laborer | Minnesota |
| 24 | Evelyn Heide | 21 | Daughter | — | Minnesota |
| 25 | Joan Heide | 19 | Daughter | — | Minnesota |
| 26 | Annavonne Heide | 17 | Daughter | — | Minnesota |
| 27 | Juanita Heide | 8 | Daughter | — | Minnesota |
| 28 | John Handy | 86 | Head | — | Canada English |
| 29 | Anna Handy | 76 | Wife | — | Michigan |
| 30 | Toby Case | 48 | Head | Farmer | Minnesota |
| 31 | Leona Case | 47 | Wife | — | Minnesota |
| 32 | Leslie Case | 26 | Son | Farm Laborer | Minnesota |
| 33 | Henry Case | 16 | Son | Farm Laborer | Minnesota |
| 34 | Beatrice Case | 14 | Daughter | — | Minnesota |
| 35 | Violet May Case | 12 | Daughter | — | Minnesota |
| 36 | William James Case THIS PERSON | 10 | Son | — | Minnesota |
| 37 | Carol Jean Case | 1 | Daughter | — | Minnesota |
| 38 | Mabel Case | 21 | Daughter | House Keeper | Minnesota |
| 39 | Marjorie Case | 5 | Daughter | — | Minnesota |
| 40 | Carl Peterson | 36 | Head | Farmer | Minnesota |
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)