JM
John Mueller — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Clay-County, Iowa
Our Model Tree links this John Mueller across the 1930 and 1940 US Censuses in Clay-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1888), then head of a 7-person household.
Age 52
b. ~1888
Male
Head
Born: Minnesota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Clay-County, Iowa |
| Surname | Mueller |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Peterson |
| 1935 Residence (County) | Clay |
| Additional Details | |
| Occupation | Carpenter |
| Class of Worker | PW |
| Hours Worked | 37 |
| Income (1939) | 1200 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Carpenter |
| Township / Ward | Peterson |
| 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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Grace Mueller | Daughter | — | 10 | ~1930 |
| John Mueller | Head | — | 52 | ~1888 |
| Sherra Plasman | Other | — | 23 | ~1917 |
| Jack Mueller | Son | — | 12 | ~1928 |
| Robert Mueller | Son | — | 8 | ~1932 |
| Donald Mueller | Son | — | 5 | ~1935 |
| Agnes Mueller | Spouse | — | 42 | ~1898 |
Census Appearances
1930
Clay, Iowa
Head, age 42
Clay, Iowa · implied b. ~1888 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mueller |
| Given Name | John M. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Minnesota |
| Age at First Marriage | 29 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Carpenter |
| Industry | House |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | Un |
| Home Value / Rent | Un |
| Radio Set | R |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Clay-County, Iowa
Head, age 52
Clay-County, Iowa · implied b. ~1888 — 7 household members
| Surname | Mueller |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Peterson |
| 1935 Residence (County) | Clay |
| Occupation | Carpenter |
| Class of Worker | PW |
| Hours Worked | 37 |
| Income (1939) | 1200 |
| Highest Grade | H 4 |
| 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 John Mueller across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Mueller
Head · 1940 · age 52 · b. ~1888 · Iowa
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Clay-County, Iowa
Open full size
1940 US Federal Census — Clay-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01148-00557)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Rosetta Lowrey | 2 | Daughter | — | Iowa |
| 42 | Ruby Lowrey | 2 | Daughter | — | Iowa |
| 43 | Russell Lowrey | 1 | Son | — | Iowa |
| 44 | A. B. Lowrey | 25 | Brother | — | Pennsylvania |
| 45 | A. H. Lowrey | 47 | Brother | Laborer | Iowa |
| 46 | Adolph Fisher | 34 | Head | Mechanic | Iowa |
| 47 | Lillian Fisher | 36 | Wife | — | Iowa |
| 48 | Charles Fisher | 12 | Son | — | Iowa |
| 49 | Betty Fisher | 8 | Daughter | — | Iowa |
| 50 | Billy Fisher | 2 | Son | — | Iowa |
| 51 | Edward Thuler | Euler | 60 | Head | Retired Farmer | Iowa |
| 52 | Grace A. Thuler | Euler | 61 | Wife | — | Germany |
| 53 | Miles Coskey | 68 | Head | — | Kentucky |
| 54 | Clarinda Coskey | 70 | Wife | — | Kentucky |
| 55 | John Mueller THIS PERSON | 52 | Head | Carpenter | Minnesota |
| 56 | Agnes O. Mueller | 42 | Wife | — | Iowa |
| 57 | Jack Mueller | 12 | Son | — | Iowa |
| 58 | Grace Mueller | 10 | Daughter | — | Iowa |
| 59 | Robert Mueller | 8 | Son | — | Iowa |
| 60 | Donald Mueller | 5 | Son | — | Iowa |
| 61 | Sherra Plasman | 23 | Maid | — | Iowa |
| 62 | Lou Rohrbaugh | 33 | Head | Laborer | Iowa |
| 63 | Blanche Rohrbaugh | 27 | Wife | — | Iowa |
| 64 | Jimmie Rohrbaugh | 10 | Son | — | Iowa |
| 65 | Sherlie Rohrbaugh | 8 | Daughter | — | Iowa |
| 66 | Phyllis Rohrbaugh | 5 | Daughter | — | Iowa |
| 67 | Betty Rohrbaugh | 3 | Daughter | — | Iowa |
| 68 | Billy Rohrbaugh | 3 | Son | — | Iowa |
| 69 | Thomas Richardson | 53 | Head | — | Iowa |
| 70 | May O. Richardson | 52 | Wife | — | Iowa |
| 71 | Horace G. Dorr | 71 | Head | — | Ohio |
| 72 | William Schippers | 44 | Head | Section Foreman | Holland |
| 73 | Elizabeth Schippers | 42 | Wife | — | Holland |
| 74 | Garton Schippers | 22 | Son | Laborer | Iowa |
| 75 | Theodore Schippers | 20 | Son | Laborer | Iowa |
| 76 | Alberta Schippers | 19 | Daughter | — | Iowa |
| 77 | Arthur L. Schippers | 17 | Son | Laborer | Iowa |
| 78 | Crystal V. Schippers | 16 | Daughter | — | Iowa |
| 79 | William Jr. Schippers | 6 | Son | — | Iowa |
| 80 | Patricia J. Schippers | 1 | 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)