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John Keller — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Saguache-County, Colorado
Our Model Tree links this John Keller across the 1930 and 1940 US Censuses in Saguache-County, Colorado (XGBoost, ~Confirmed) — first a head (b.~1889), then head of a 9-person household.
Age 51
b. ~1889
Male
Head
Born: Colorado
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Saguache-County, Colorado |
| Surname | Keller |
| Given Name | John W |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Saguache town |
| 1935 Residence (County) | Saguache |
| Additional Details | |
| Occupation | Lumberman |
| Industry | Own Saw mill |
| Class of Worker | OA |
| Hours Worked | 50 |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Occupation | Lumberman |
| Township / Ward | Saguache Town |
| Est. Birth Year | ~1889 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Mary Keller | Daughter | — | 17 | ~1923 |
| Aldona Keller | Daughter | — | 8 | ~1932 |
| Marvine Keller | Daughter | — | 12 | ~1928 |
| Shirley Keller | Daughter | — | 6 | ~1934 |
| Alma Keller | Daughter | — | 25 | ~1915 |
| John Keller | Head | — | 51 | ~1889 |
| Westley Keller | Son | — | 20 | ~1920 |
| Kenneth Keller | Son | — | 16 | ~1924 |
| Sylvia Keller | Spouse | — | 49 | ~1891 |
Census Appearances
1930
Saguache, Colorado
Head, age 40
Saguache, Colorado · implied b. ~1890 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Keller |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Colorado |
| Age at First Marriage | 22 |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | Stationary Engineer |
| Industry | Lumber |
| Class of Worker | X44 |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 1000 |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Saguache-County, Colorado
Head, age 51
Saguache-County, Colorado · implied b. ~1889 — 9 household members
| Surname | Keller |
| Given Name | John W |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Saguache town |
| 1935 Residence (County) | Saguache |
| Occupation | Lumberman |
| Industry | Own Saw mill |
| Class of Worker | OA |
| Hours Worked | 50 |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| 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 Keller across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Keller
Head · 1940 · age 51 · b. ~1889 · Colorado
★ 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 — Saguache-County, Colorado
Open full size
1940 US Federal Census — Saguache-County, Colorado
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00479-00503)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Earnest Lazarus | 46 | Head | Stockman | Colorado |
| 2 | Reba G Lazarus | 45 | Wife | — | Colorado |
| 3 | Dale Lazarus | 16 | Son | Laborer | Colorado |
| 4 | Pearl Lazarus | 12 | Daughter | — | Colorado |
| 5 | June Lazarus | 9 | Daughter | — | Colorado |
| 6 | Jimmy Lazarus | 6 | Son | — | Colorado |
| 7 | Mary Lazarus | 1 | Daughter | — | Colorado |
| 8 | John W Keller THIS PERSON | 51 | Head | Lumberman | Colorado |
| 9 | Sylvia D Keller | 49 | Wife | — | Missouri |
| 10 | Alma Keller | 25 | Daughter | Practical Nurse | Colorado |
| 11 | Westley Keller | 20 | Son | Laborer | Colorado |
| 12 | Mary Keller | 17 | Daughter | — | Colorado |
| 13 | Kenneth Keller | 16 | Son | — | Colorado |
| 14 | Marvine Keller | 12 | Daughter | — | Colorado |
| 15 | Aldona Keller | 8 | Daughter | — | Colorado |
| 16 | Shirley Keller | 6 | Daughter | — | Colorado |
| 17 | William E Whitten | 68 | Head | County Clerk & Recorder | Iowa |
| 18 | May O Whitten | 51 | Wife | — | Iowa |
| 19 | George Whitten | 19 | Son | Laborer | Colorado |
| 20 | Donald Whitten | 18 | Son | Laborer | Colorado |
| 21 | Lottie Mcdonough | 31 | Head | — | Colorado |
| 22 | William Jr Mcdonough | 11 | Son | — | Colorado |
| 23 | Marie Mcdonough | 7 | Daughter | — | Colorado |
| 24 | Irene Mcdonough | 4 | Daughter | — | Colorado |
| 25 | William Mcelmurry | 21 | Head | Laborer | Kansas |
| 26 | Cherry Mcelmurry | 18 | Wife | — | Kansas |
| 27 | Barbara Mcelmurry | 1 | Daughter | — | Colorado |
| 28 | S. J. Scovell | 39 | Head | — | Ohio |
| 29 | Frank Montaño | 38 | Head | Laborer | New Mexico |
| 30 | Isadora B Montaño | 33 | Wife | — | Colorado |
| 31 | Ted Montaño | 10 | Son | — | Colorado |
| 32 | Priscilla Montaño | 8 | Daughter | — | Colorado |
| 33 | Phyllis Montaño | 6 | Daughter | — | Colorado |
| 34 | Irene Montaño | 4 | Daughter | — | Colorado |
| 35 | Julio Meiz | 61 | Head | Laborer | Colorado |
| 36 | Josepha Meiz | 57 | Wife | — | Colorado |
| 37 | Aurelia Meiz | 25 | Daughter | Seamstress | Colorado |
| 38 | Abel Meiz | 4 | Grandson | — | Colorado |
| 39 | Fred Sanchez | 53 | Head | Sheep Man | Colorado |
| 40 | Fred Jr Sanchez | 21 | Son | Clerk | Colorado |
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)