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William Conrad — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hancock-County, Iowa
Our Model Tree links this William Conrad across the 1930 and 1940 US Censuses in Hancock-County, Iowa (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 6-person household.
Age 15
b. ~1925
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hancock-County, Iowa |
| Surname | Conrad |
| Given Name | William E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Amsterdam |
| 1935 Residence (County) | Hancock |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Amsterdam |
| Est. Birth Year | ~1925 |
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 |
|---|---|---|---|---|
| Russell Conrad | Son | — | 16 | ~1924 |
| Lola Conrad | Daughter | — | 18 | ~1922 |
| Luella Conrad | Spouse | — | 40 | ~1900 |
| Lowell Conrad | Head | — | 44 | ~1896 |
| Clem Conrad | Son | — | 18 | ~1922 |
| William Conrad | Son | — | 15 | ~1925 |
Census Appearances
1930
Hancock, Iowa
Son, age 5
Hancock, Iowa · implied b. ~1925 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Conrad |
| Given Name | William C |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Hancock-County, Iowa
Son, age 15
Hancock-County, Iowa · implied b. ~1925 — 6 household members
| Surname | Conrad |
| Given Name | William E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Amsterdam |
| 1935 Residence (County) | Hancock |
| 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 Conrad across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Conrad
Son · 1940 · age 15 · b. ~1925 · Iowa
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Sibling
Lola Conrad
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clem Conrad
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Russell Conrad
Sibling · 1940 · age 16
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 — Hancock-County, Iowa
Open full size
1940 US Federal Census — Hancock-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01164-00624)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Edith Kappers | 36 | Wife | — | Iowa |
| 42 | Peter Kappers | 70 | Uncle | — | Holland |
| 43 | Philip J. Kappers | 5 | Son | — | Iowa |
| 44 | Barbara Kappers | 3 | Daughter | — | Iowa |
| 45 | John Van Auken | 29 | Hired man | Farm Laborer | Iowa |
| 46 | Lawrence Johnson | 33 | Head | — | Iowa |
| 47 | Jennie Johnson | 31 | Wife | — | Iowa |
| 48 | Orville Hubbard | 16 | Hired man | Farm Laborer | Iowa |
| 49 | Fred Schroeder | 60 | Head | — | Iowa |
| 50 | Will Kappers | 36 | Head | — | Iowa |
| 51 | Carrie Kappers | 36 | Wife | — | Iowa |
| 52 | William Kappers | 3 | Son | — | Iowa |
| 53 | Fritz Krell | 26 | Head | — | Iowa |
| 54 | Elma Krell | 21 | Wife | — | Minnesota |
| 55 | Phyllis Eileen Krell | 0 | Daughter | — | Iowa |
| 56 | Erick Osthoff | 56 | Head | — | Germany |
| 57 | Anne Osthoff | 55 | Wife | — | Germany |
| 58 | Fred E. Osthoff | 18 | Son | Farm Laborer | Iowa |
| 59 | Fannie M. Osthoff | 18 | Daughter | — | Iowa |
| 60 | Elsie L. Osthoff | 16 | Daughter | — | Iowa |
| 61 | Raymond E. Osthoff | 13 | Son | — | Iowa |
| 62 | John G. Nelson | 44 | Head | — | Norway |
| 63 | Anna Nelson | 45 | Wife | — | Illinois |
| 64 | Arthur W. Nelson | 13 | Son | — | Iowa |
| 65 | Margrit A. Nelson | 9 | Daughter | — | Iowa |
| 66 | Alice E. Nelson | 5 | Daughter | — | Iowa |
| 67 | Emeline A. Johnson | 75 | Head | Farm Operator | Illinois |
| 68 | Earl Johnson | 36 | Head | Farm Operator | Iowa |
| 69 | Carl Johnson | 39 | Brother | Partner Farm Op. | Iowa |
| 70 | Alfred Johnson | 31 | Head | Farm Operator | Iowa |
| 71 | Iva E. Johnson | 31 | Wife | — | Iowa |
| 72 | Jerry A. Johnson | 5 | Son | — | Iowa |
| 73 | Leana M. Johnson | 3 | Daughter | — | Iowa |
| 74 | Leonard Williamson | 25 | Hired man | Farm Laborer | Iowa |
| 75 | Lowell O. Conrad | 44 | Head | Farm Operator | Iowa |
| 76 | Luella M. Conrad | 40 | Wife | — | Iowa |
| 77 | Lola E. Conrad | 18 | Daughter | — | Iowa |
| 78 | Clem E. Conrad | 18 | Son | Farm Laborer | Iowa |
| 79 | Russell G. Conrad | 16 | Son | — | Iowa |
| 80 | William E. Conrad THIS PERSON | 15 | Son | — | 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)