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John Mueller — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Fond-Du-Lac-County, Wisconsin
Our Model Tree links this John Mueller across the 1930 and 1940 US Censuses in Fond-Du-Lac-County, Wisconsin (XGBoost, ~Confirmed) — first a head (b.~1888), then head of a 6-person household.
Age 52
b. ~1888
Male
Head
Born: Austria
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Fond-Du-Lac-County, Wisconsin |
| Surname | Mueller |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Austria |
| 1935 Residence (City) | North Fond du Lac Village |
| 1935 Residence (County) | Fond du Lac |
| Naturalization Status | First papers filed |
| Additional Details | |
| Occupation | Laborer |
| Industry | School grounds project |
| Class of Worker | GW |
| Hours Worked | 32 |
| Income (1939) | 580 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth Country | Austria |
| Birthplace (normalized) | austria |
| Occupation | Laborer |
| Township / Ward | North Fond Du Lac Village |
| Est. Birth Year | ~1888 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| John Mueller | Head | — | 52 | ~1888 |
| Herbert Mueller | Son | — | 18 | ~1922 |
| John Mueller | Son | — | 27 | ~1913 |
| Rudolph Mueller | Son | — | 17 | ~1923 |
| Charlie Mueller | Son | — | 30 | ~1910 |
| Frances Mueller | Spouse | — | 53 | ~1887 |
Census Appearances
Head, age 42
Fond Du Lac, Wisconsin · implied b. ~1888 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Muller |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Austria |
| Naturalization Status | Naturalized |
| Year of Immigration | 1905 |
| Age at First Marriage | 22 |
| Father's Birthplace | Austria |
| Mother's Birthplace | Austria |
| Occupation | Carpenter |
| Industry | R.R. Shops |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Austrian |
| Home Owned/Rented | O |
| Home Value / Rent | 1800 |
| Veteran | No |
| Birth Country | Austria |
| Birthplace (normalized) | austria |
1940
Fond-Du-Lac-County, Wisconsin
Head, age 52
Fond-Du-Lac-County, Wisconsin · implied b. ~1888 — 6 household members
| Surname | Mueller |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Austria |
| 1935 Residence (City) | North Fond du Lac Village |
| 1935 Residence (County) | Fond du Lac |
| Naturalization Status | First papers filed |
| Occupation | Laborer |
| Industry | School grounds project |
| Class of Worker | GW |
| Hours Worked | 32 |
| Income (1939) | 580 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth Country | Austria |
| Birthplace (normalized) | austria |
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 Mueller across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Mueller
Head · 1940 · age 52 · b. ~1888 · Wisconsin
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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 — Fond-Du-Lac-County, Wisconsin
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1940 US Federal Census — Fond-Du-Lac-County, Wisconsin
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04480-00251)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Boese Jewson | 23 | Son-in-law | Truck Driver | Wisconsin |
| 42 | Geraldine Jewson | 19 | Daughter | — | Wisconsin |
| 43 | Ernest Vogel | 36 | Head | Brakeman | Wisconsin |
| 44 | Florence Vogel | 27 | Wife | — | Wisconsin |
| 45 | Dorothy Vogel | 10 | Daughter | — | Wisconsin |
| 46 | Florence Vogel | 7 | Daughter | — | Wisconsin |
| 47 | Ernest Jr. Vogel | 2 | Son | — | Wisconsin |
| 48 | John Gimmil | 57 | Head | Machinist | Austria |
| 49 | Henrietta Gimmil | 37 | Wife | — | Wisconsin |
| 50 | Patricia A. Gimmil | 5 | Daughter | — | Wisconsin |
| 51 | Joan Mary Gimmil | 3 | Daughter | — | Wisconsin |
| 52 | Elizabeth J. Gimmil | 1 | Daughter | — | Wisconsin |
| 53 | Hiram E. Bigby | 67 | Head | Painter And Paper Hanger | Wisconsin |
| 54 | Sara Bigby | 69 | Wife | — | Switzerland |
| 55 | Elmer Bigby | 28 | Son | Clerk | Wisconsin |
| 56 | Herbert Bigby | 20 | Son | Case Worker | Wisconsin |
| 57 | Kenneth Bigby | 25 | Son | — | Wisconsin |
| 58 | Ruth Bigby | 18 | Daughter | Receptionist | Wisconsin |
| 59 | John Mahler | 58 | Head | Janitor | South Dakota |
| 60 | Ella Mahler | 47 | Wife | — | Wisconsin |
| 61 | Alice Mahler | 17 | Daughter | — | Wisconsin |
| 62 | Henry Brown | 51 | Head | Butcher | Wisconsin |
| 63 | Edna Brown | 22 | Wife | — | Wisconsin |
| 64 | Dorothy Brown | 16 | Daughter | — | Wisconsin |
| 65 | Donald Brown | 14 | Son | — | Wisconsin |
| 66 | Orvill Brown | 11 | Son | — | Wisconsin |
| 67 | Henry Brown | 10 | Son | — | Wisconsin |
| 68 | Franklin Brown | 5 | Son | — | Wisconsin |
| 69 | John Mueller THIS PERSON | 52 | Head | Laborer | Austria |
| 70 | Frances Mueller | 53 | Wife | — | Austria |
| 71 | Charlie Mueller | 30 | Son | Laborer | Wisconsin |
| 72 | John Mueller | 27 | Son | Heating Rivets | Wisconsin |
| 73 | Rudolph Mueller | 17 | Son | — | Wisconsin |
| 74 | Herbert Mueller | 18 | Son | Mechanic H. | Wisconsin |
| 75 | Christ Ludwigsen | 47 | Head | Bridge Building | Wisconsin |
| 76 | Mary Ludwigsen | 42 | Wife | — | Wisconsin |
| 77 | Lois Ludwigsen | 14 | Daughter | — | Wisconsin |
| 78 | Robert Ludwigsen | 13 | Son | — | Wisconsin |
| 79 | Carol Ludwigsen | 11 | Daughter | — | Wisconsin |
| 80 | Raymond Mathig | 19 | Nephew | Laborer | Wisconsin |
Related Census Records
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)