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John Mueller — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Iowa-County, Iowa
Our Model Tree links this John Mueller across the 1920, 1930 and 1940 US Censuses in Iowa-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1880), then head of a 3-person household.
Age 60
b. ~1880
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Iowa-County, Iowa |
| Surname | Mueller |
| Given Name | John C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Lincoln Twp |
| 1935 Residence (County) | Iowa |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Hours Worked | 72 |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farmer |
| Township / Ward | Lincoln Twp |
| Est. Birth Year | ~1880 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Dorthy Mueller | Daughter | — | 31 | ~1909 |
| John Mueller | Head | — | 60 | ~1880 |
| Mamie Mueller | Spouse | — | 55 | ~1885 |
Census Appearances
1920
Iowa, Iowa
Head, age 40
Iowa, Iowa · implied b. ~1880 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mueller |
| Given Name | John C |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Farming |
| Industry | General Farm |
| Class of Worker | E |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Iowa, Iowa
Head, age 50
Iowa, Iowa · implied b. ~1880 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mueller |
| Given Name | John C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 25 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Farmer |
| Industry | General farming |
| Class of Worker | O |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Radio Set | R |
| Veteran | no |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Iowa-County, Iowa
Head, age 60
Iowa-County, Iowa · implied b. ~1880 — 3 household members
| Surname | Mueller |
| Given Name | John C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Lincoln Twp |
| 1935 Residence (County) | Iowa |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Hours Worked | 72 |
| Income (1939) | 0 |
| Highest Grade | 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 John Mueller across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Mueller
Head · 1940 · age 60 · b. ~1880 · 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 — Iowa-County, Iowa
Open full size
1940 US Federal Census — Iowa-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01168-00290)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mildred Brandt | 15 | Daughter | Housework | Iowa |
| 2 | Marvin Brandt | 14 | Son | Farming | Iowa |
| 3 | Albert G. Schultz | 29 | Head | Farmer | Iowa |
| 4 | Clara Schultz | 28 | Wife | Housewife | Iowa |
| 5 | Marcella Schultz | 14 | Daughter | Housework | Iowa |
| 6 | La Vera Schultz | 8 | Daughter | — | Iowa |
| 7 | John C. Mueller THIS PERSON | 60 | Head | Farmer | Iowa |
| 8 | Mamie Mueller | 55 | Wife | Housewife | Iowa |
| 9 | Dorthy May Mueller | 31 | Daughter | Housework | Iowa |
| 10 | Raymond P. Shine | 41 | Head | Farmer | Iowa |
| 11 | M. Pearl Shine | 43 | Wife | Housewife | Virginia |
| 12 | Marie Shine | 17 | Daughter | Housework | Iowa |
| 13 | Paul Shine | 15 | Son | Farmer | Iowa |
| 14 | Raymond Shine | 12 | Son | — | Iowa |
| 15 | Betty Shine | 10 | Daughter | — | Iowa |
| 16 | Harvey G. Cronbaugh | 49 | Head | Farmer | Iowa |
| 17 | Florence Cronbaugh | 42 | Wife | Housewife | Iowa |
| 18 | Hester Gayle Cronbaugh | 23 | Daughter | Housework | Iowa |
| 19 | William Cronbaugh | 17 | Son | Farming | Iowa |
| 20 | Oliver S. Byerly | 50 | Head | Farmer | Virginia |
| 21 | Ada Byerly | 46 | Wife | Housewife | Virginia |
| 22 | Otto Moller | 49 | Head | Farmer | Germany |
| 23 | Henrietta Moller | 48 | Wife | Housewife | Germany |
| 24 | Walter Moller | 21 | Son | Farmer | Iowa |
| 25 | Agnes Moller | 18 | Daughter | Housewife | Iowa |
| 26 | Arthur Moller | 11 | Son | — | Iowa |
| 27 | Harold Moore | 32 | Head | Farmer | Iowa |
| 28 | Gail Moore | 46 | Wife | Housewife | Iowa |
| 29 | Mary Carmichael | 75 | Mother-in-law | — | Iowa |
| 30 | John A. Dillin | 49 | Head | Farmer | Iowa |
| 31 | Mabel Dillin | 46 | Wife | Housewife | Iowa |
| 32 | James Dillin | 22 | Son | Farming | Iowa |
| 33 | Donald Dillin | 17 | Son | Farming | Iowa |
| 34 | Joseph Hardi Dillin | 14 | Son | — | Iowa |
| 35 | Zelma Dillin | 12 | Daughter | — | Iowa |
| 36 | Kenneth Lawrence | 21 | Hired hand | Farm Hand | Iowa |
| 37 | Harry Dillin | 45 | Brother | Farming | Iowa |
| 38 | Clark Schofluch | 37 | Head | Farmer | Iowa |
| 39 | Pearl Schofluch | 34 | Wife | Housewife | Iowa |
| 40 | La Jean Schofluch | 8 | Daughter | — | 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)