WM
William Mueller — 1940 US Census Record
Model Tree available1940 United States Federal Census · Marion-County, Indiana
Our Model Tree links this William Mueller across the 1920, 1930 and 1940 US Censuses in Marion-County, Indiana (XGBoost, ~Confirmed), with identified parents Caroline & Louis — first a son (b.~1912), then head of a 5-person household.
Age 28
b. ~1912
Male
Son
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Indiana |
| Surname | Mueller |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Occupation | Floor Man |
| Industry | Hotel |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 900 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Floor Man |
| Township / Ward | Indianapolis |
| Est. Birth Year | ~1912 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| William Mueller | Son | — | 28 | ~1912 |
| Louis Mueller | Head | — | 60 | ~1880 |
| Caroline Mueller | Spouse | — | 63 | ~1877 |
| Ida Meyers | Daughter | — | 27 | ~1913 |
| Kenneth Mueller | Son | — | 29 | ~1911 |
Census Appearances
1920
Marion, Indiana
Son, age 8
Marion, Indiana · implied b. ~1912 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mueller |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
Marion, Indiana
Son, age 19
Marion, Indiana · implied b. ~1911 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mueller |
| Given Name | William A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | Stenographer |
| Industry | Decorating Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Marion-County, Indiana
Son, age 28
Marion-County, Indiana · implied b. ~1912 — 5 household members
| Surname | Mueller |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Occupation | Floor Man |
| Industry | Hotel |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 900 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
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 Mueller across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Caroline Mueller (~0.92 confidence) and father Louis Mueller (~0.92 confidence) and father Louis Mueller (~0.92 confidence) and father Louis Mueller (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Caroline Mueller
b. ~1878
Source mother
● Household
· direct · ~0.92
Father
Louis Mueller
b. ~1880
Source father
● Household
· direct · ~0.92
Father
Louis Mueller
b. ~1880
Source father
● Household
· direct · ~0.92
Father
Louis Mueller
b. ~1881
Source father
● Household
· direct · ~0.92
This person
Anchor record
William Mueller
Son · 1940 · age 28 · b. ~1912 · Indiana
★ You are viewing this record
Sibling
Kenneth Mueller
Sibling · 1940 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ida Meyers
Sibling · 1940 · age 27
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 — Marion-County, Indiana
Open full size
1940 US Federal Census — Marion-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01130-00372)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mildred Dyer | 28 | Wife | — | Indiana |
| 42 | Golden Reynolds | 35 | Head | Policeman | Illinois |
| 43 | Mary Ellen Reynolds | 33 | Wife | — | Kansas |
| 44 | Jeanne Reynolds | 11 | Daughter | — | Indiana |
| 45 | Louis Mueller | 60 | Head | Salesman | Indiana |
| 46 | Caroline Mueller | 63 | Wife | — | Indiana |
| 47 | William Mueller THIS PERSON | 28 | Son | Floor Man | California |
| 48 | Kenneth Mueller | 29 | Son | Printer | California |
| 49 | Ida Meyers | 27 | Daughter | Salesperson | California |
| 50 | Ellis G. King | 58 | Head | Electrical Maintenance | Kentucky |
| 51 | Louise King | 58 | Wife | — | Kentucky |
| 52 | John L. Sheckleman | 48 | Head | Watch Repair | Indiana |
| 53 | Helen Sheckleman | 44 | Wife | — | Norway |
| 54 | Theodore Theiss | 70 | Head | — | Indiana |
| 55 | Adella Theiss | 70 | Wife | — | Indiana |
| 56 | Sally Pedigo | 44 | Head | Assistant To Physician | Kentucky |
| 57 | Charles Pedigo | 20 | Son | Knitter Helper | Kentucky |
| 58 | Joseph Pedigo | 15 | Son | — | Indiana |
| 59 | Marie Pedigo | 11 | Daughter | — | Indiana |
| 60 | Donald Pedigo | 9 | Son | — | Indiana |
| 61 | Robert Thell | 48 | Lodger | — | Indiana |
| 62 | Lee Van Hook | 54 | Head | Store Manager | Indiana |
| 63 | Metta Van Hook | 47 | Wife | — | Indiana |
| 64 | Ernest Sutherlin | 25 | Head | Machinist | Indiana |
| 65 | Alice Sutherlin | 21 | Wife | — | Indiana |
| 66 | Dee Ann Sutherlin | 2 | Daughter | — | Indiana |
| 67 | Harold B. Mckissick | 24 | Head | Mechanic | Indiana |
| 68 | Lillian Mckissick | 23 | Wife | — | Indiana |
| 69 | Emma Hardy | 74 | Mother-in-law | — | Indiana |
| 70 | Frank L. Barrett | 38 | Head | Tool Maker | Indiana |
| 71 | Margaret Barrett | 30 | Wife | Layering | Kentucky |
| 72 | Jerry H. Richey | 38 | Head | Trucking Contractor | Missouri |
| 73 | Lucille Richey | 36 | Wife | — | Texas |
| 74 | Jerry O. Richey | 15 | Son | — | Michigan |
| 75 | Marilyn Richey | 11 | Daughter | — | Michigan |
| 76 | Bert Wirt | 52 | Head | Brakeman | Indiana |
| 77 | Cora Wirt | 46 | Wife | — | Indiana |
| 78 | Zula Wirt | 18 | Daughter | — | Indiana |
| 79 | Lulu Wirt | 16 | Daughter | — | Indiana |
| 80 | Clara Wirt | 13 | Daughter | — | Indiana |
Pedigree Summary
William + 2 siblings
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)