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John Muller — 1940 US Census Record
Model Tree available1940 United States Federal Census · Denver-County, Colorado
Our Model Tree links this John Muller across the 1920, 1930 and 1940 US Censuses in Denver-County, Colorado (XGBoost, ~Confirmed), with identified parents Laura & William — first a son (b.~1919), then head of a 6-person household.
Age 21
b. ~1919
Male
Son
Born: Colorado
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Denver-County, Colorado |
| Surname | Muller |
| Given Name | John R |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | City and County of Denver |
| 1935 Residence (County) | Denver |
| Additional Details | |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | C 3 |
| 1935 Residence | Same Place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Township / Ward | City And County Of Denver |
| Est. Birth Year | ~1919 |
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 |
|---|---|---|---|---|
| Joan Muller | Daughter | — | 16 | ~1924 |
| Jane Muller | Daughter | — | 16 | ~1924 |
| William Muller | Son | — | 20 | ~1920 |
| John Muller | Son | — | 21 | ~1919 |
| Louis Muller | Head | — | 60 | ~1880 |
| Ethel Muller | Spouse | — | 45 | ~1895 |
Census Appearances
1920
Denver, Colorado
Son, age 1
Denver, Colorado · implied b. ~1919 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Muller |
| Given Name | John R |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Mississippi |
| Mother's Birthplace | Colorado |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1930
Denver, Colorado
Son, age 11
Denver, Colorado · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Muller |
| Given Name | John R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Mississippi |
| Mother's Birthplace | Colorado |
| Can Read/Write | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Denver-County, Colorado
Son, age 21
Denver-County, Colorado · implied b. ~1919 — 6 household members
| Surname | Muller |
| Given Name | John R |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | City and County of Denver |
| 1935 Residence (County) | Denver |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | C 3 |
| 1935 Residence | Same Place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
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 Muller across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Laura Eades (~0.92 confidence) and father William Eades (~0.92 confidence) and father Louis Muller (~0.92 confidence) and mother Ethel Muller (~0.92 confidence) and mother Ethel Muller (~0.92 confidence) and mother Ethel Muller (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Laura Eades
b. ~1854
Source mother
● Household
· direct · ~0.92
Father
William Eades
b. ~1878
Source father
● Household
· direct · ~0.92
Father
Louis Muller
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Ethel Muller
b. ~1893
Source mother
● Household
· direct · ~0.92
Mother
Ethel Muller
b. ~1895
Source mother
● Household
· direct · ~0.92
Mother
Ethel Muller
b. ~1895
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Muller
Son · 1940 · age 21 · b. ~1919 · Colorado
★ You are viewing this record
Sibling
Jane Muller
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joan Muller
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Muller
Sibling · 1940 · age 20
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 — Denver-County, Colorado
Open full size
1940 US Federal Census — Denver-County, Colorado
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00490-00693)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Alice X Manke | 62 | Head | — | Colorado |
| 42 | Cathryn Mae Manke | 53 | Sister | — | Kentucky |
| 43 | Helen Manke | 87 | Mother | — | Kentucky |
| 44 | Marvin Glass | 24 | Head | Laborer | Iowa |
| 45 | Evelyn Glass | 22 | Wife | Maid | Iowa |
| 46 | Nelle O Wellman | 55 | Head | — | Illinois |
| 47 | May B Wellman | 31 | Son | Station Fireman | New York |
| 48 | Charles H Bailey | 46 | Head | Dentist | Nebraska |
| 49 | Jessie Q Bailey | 43 | Wife | — | Illinois |
| 50 | Charles Bailey | 15 | Son | — | Colorado |
| 51 | James Bailey | 11 | Son | — | Colorado |
| 52 | Joe Bailey | 9 | Son | — | Colorado |
| 53 | Estella M Dyches | 58 | Head | Ass. Manager | Indiana |
| 54 | Josephine Walsh | 54 | Sister | Ass. Manager | Kansas |
| 55 | C. L. Walsh | 49 | Brother-in-law | Salesman | Kansas |
| 56 | Marcella A Walsh | 49 | Sister | Saleswoman | Kansas |
| 57 | Cyrus L Walsh | 18 | Nephew | Office Clerk | Colorado |
| 58 | William A Walsh | 16 | Nephew | — | Colorado |
| 59 | Thomas L Walsh | 15 | Nephew | — | Colorado |
| 60 | Patrick Henry Walsh | 13 | Nephew | — | Colorado |
| 61 | Elizabeth Walsh | 21 | Niece | Messenger | Colorado |
| 62 | Richard Walsh | 18 | Nephew | Delivery Clerk | Colorado |
| 63 | Joan Walsh | 16 | Niece | — | Colorado |
| 64 | J. R. Silverman | 45 | Roomer | Engineer | Maine |
| 65 | Louis A Muller | 60 | Head | Broker | Mississippi |
| 66 | Ethel Muller | 45 | Wife | — | Louisiana |
| 67 | John R Muller THIS PERSON | 21 | Son | — | Colorado |
| 68 | William A Muller | 20 | Son | — | Colorado |
| 69 | Jane Muller | 16 | Daughter | — | Colorado |
| 70 | Joan Muller | 16 | Daughter | — | Colorado |
| 71 | John C Street | 35 | Head | Lawyer | Alabama |
| 72 | Lester Grosh | 41 | Boarder | — | Tennessee |
| 73 | Harry L Gentry | 35 | Boarder | Elec. Eng. | Mississippi |
| 74 | Rex L. J. Gentry | 35 | Boarder | — | Missouri |
| 75 | William Staley | 37 | Head | Credit Manager | Colorado |
| 76 | Alice Staley | 38 | Wife | — | Nebraska |
| 77 | Mary C Staley | 14 | Daughter | — | Colorado |
| 78 | Jimmy Staley | 6 | Son | — | Colorado |
| 79 | Richard Williamson | 27 | Head | — | Montana |
| 80 | Margaret Williamson | 25 | Wife | — | Iowa |
Pedigree Summary
John + 3 siblings
Gen 1 · 6 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)