JB
John Bond — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Fond-Du-Lac-County, Wisconsin
Our Model Tree links this John Bond across the 1930 and 1940 US Censuses in Fond-Du-Lac-County, Wisconsin (XGBoost, ~Confirmed) — first a son (b.~1926), then head of a 10-person household.
Age 14
b. ~1926
Male
Son
Born: Wisconsin
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Fond-Du-Lac-County, Wisconsin |
| Surname | Bond |
| Given Name | John L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Fond du Lac City |
| 1935 Residence (County) | Fond du Lac |
| Additional Details | |
| Highest Grade | Hs 1 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Township / Ward | Fond Du Lac City |
| Est. Birth Year | ~1926 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Elizabeth Bond | Spouse | — | 52 | ~1888 |
| Lawrence Bond | Son | — | 23 | ~1917 |
| Earl Bond | Son | — | 20 | ~1920 |
| Allen Bond | Son | — | 27 | ~1913 |
| Howard Bond | Son | — | 24 | ~1916 |
| Russell Bond | Son | — | 16 | ~1924 |
| Allen Bond | Son | — | 25 | ~1915 |
| Harold Bond | Son | — | 19 | ~1921 |
| John Bond | Son | — | 14 | ~1926 |
| Donald Bond | Son | — | 22 | ~1918 |
Census Appearances
1930
Fond Du …
Son, age 4
Fond Du Lac, Wisconsin · implied b. ~1926 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bond |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Fond-Du-Lac-County, Wisconsin
Son, age 14
Fond-Du-Lac-County, Wisconsin · implied b. ~1926 — 10 household members
| Surname | Bond |
| Given Name | John L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Fond du Lac City |
| 1935 Residence (County) | Fond du Lac |
| Highest Grade | Hs 1 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
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 John Bond across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Bond
Son · 1940 · age 14 · b. ~1926 · Wisconsin
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Sibling
Donald Bond
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Allen Bond
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Allen Bond
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harold Bond
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lawrence Bond
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Earl Bond
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Russell Bond
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Howard Bond
Sibling · 1940 · age 24
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 — Fond-Du-Lac-County, Wisconsin
Open full size
1940 US Federal Census — Fond-Du-Lac-County, Wisconsin
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04479-00402)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Elizabeth A. Bond | 52 | Wife | — | Germany |
| 2 | Allen G. Bond | 27 | Son | Retail Clerk | Wisconsin |
| 3 | Allen G. Bond | 25 | Son | Shipping Clerk | Wisconsin |
| 4 | Howard C. Bond | 24 | Son | Helper | Wisconsin |
| 5 | Lawrence R. Bond | 23 | Son | New Worker | Wisconsin |
| 6 | Donald R. Bond | 22 | Son | Section Hand | Wisconsin |
| 7 | Earl D. Bond | 20 | Son | Common Labor | Wisconsin |
| 8 | Harold Bond | 19 | Son | — | Wisconsin |
| 9 | Russell K. Bond | 16 | Son | — | Wisconsin |
| 10 | John L. Bond THIS PERSON | 14 | Son | — | Wisconsin |
| 11 | Christian M. Nelson | 66 | Head | Sheet Metal Work | Denmark |
| 12 | Lulu L. Nelson | 62 | Wife | — | Wisconsin |
| 13 | Alan M. Nielsen | 27 | Head | Fry Cook | Wisconsin |
| 14 | Dorothy E. Nielsen | 25 | Wife | Secretary | Wisconsin |
| 15 | Joel A. Nielsen | 2 | Son | — | Wisconsin |
| 16 | Matilda R. Nielsen | 53 | Mother | — | Wisconsin |
| 17 | August W. Vieillard | 42 | Head | Grocer Retail | Wisconsin |
| 18 | Vivian A. Vieillard | 41 | Wife | — | Wisconsin |
| 19 | Ida M. Vieillard | 15 | Daughter | — | Wisconsin |
| 20 | Herman A. Leferski | 48 | Head | Telegraph Opr. | Wisconsin |
| 21 | Anna M. Leferski | 41 | Wife | — | Wisconsin |
| 22 | Charles J. Leferski | 13 | Son | — | Wisconsin |
| 23 | Richard J. Leferski | 12 | Son | — | Wisconsin |
| 24 | Robert H. Leferski | 23 | Son | Brakeman | Wisconsin |
| 25 | Loretta M. Leferski | 23 | Daughter-in-law | — | Wisconsin |
| 26 | Eli F. Gustafson | 42 | Head | Tool Maker | Sweden |
| 27 | Viola M. Gustafson | 36 | Wife | — | Wisconsin |
| 28 | Eli R. Jr. Gustafson | 2 | Son | — | Wisconsin |
| 29 | Preston C. Richardson | 33 | Head | Dealer Trucks | Minnesota |
| 30 | Marjorie H. Richardson | 25 | Wife | — | Minnesota |
| 31 | Stanley C. Richardson | 5 | Son | — | Minnesota |
| 32 | Henry J. Clark | 44 | Head | Fireman | Wisconsin |
| 33 | Rose Clark | 42 | Wife | Maid | Wisconsin |
| 34 | John Novak | 17 | Nephew | — | Wisconsin |
| 35 | Marshall J. Wilson | 29 | Head | Salesman | Illinois |
| 36 | Vera L. Wilson | 31 | Wife | — | Wisconsin |
| 37 | Frank J. Kucharski | 44 | Head | Carpenter | Wisconsin |
| 38 | Rose M. Kucharski | 43 | Wife | — | Wisconsin |
| 39 | Chester J. Kucharski | 16 | Son | — | Wisconsin |
| 40 | Marie A. Kucharski | 14 | Daughter | — | Wisconsin |
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)