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John Mcmullen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Washington-County, Colorado
Our Model Tree links this John Mcmullen across the 1930 and 1940 US Censuses in Washington-County, Colorado (XGBoost, ~Confirmed) — first a head (b.~1895), then head of a 9-person household.
Age 45
b. ~1895
Male
Head
Born: Kansas
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Washington-County, Colorado |
| Surname | McMullen |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Kansas |
| 1935 Residence (City) | Akron Town |
| 1935 Residence (County) | Washington |
| Additional Details | |
| Occupation | Laborer |
| Industry | W.P.A. Construction |
| Class of Worker | GW |
| Hours Worked | 20 |
| Income (1939) | 737 |
| Highest Grade | No 2 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Occupation | Laborer |
| Township / Ward | Akron Town |
| Est. Birth Year | ~1895 |
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 |
|---|---|---|---|---|
| Bertha Mcmullen | Daughter | — | 17 | ~1923 |
| Earl Mcmullen | Son | — | 12 | ~1928 |
| Glen Mcmullen | Son | — | 19 | ~1921 |
| Reginald Mcmullen | Son | — | 20 | ~1920 |
| Pat Mcmullen | Son | — | 16 | ~1924 |
| John Mcmullen | Head | — | 45 | ~1895 |
| Erma Mcmullen | Daughter | — | 8 | ~1932 |
| Gladys Mcmullen | Spouse | — | 42 | ~1898 |
| Lucille Mcmullen | Daughter | — | 14 | ~1926 |
Census Appearances
1930
Washington, Colorado
Head, age 35
Washington, Colorado · implied b. ~1895 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McMullen |
| Given Name | John R |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Kansas |
| Age at First Marriage | 24 |
| Father's Birthplace | United States |
| Mother's Birthplace | Tennessee |
| Occupation | Foreman |
| Industry | Railroad |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 5 |
| Veteran | No |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Washington-County, Colorado
Head, age 45
Washington-County, Colorado · implied b. ~1895 — 9 household members
| Surname | McMullen |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Kansas |
| 1935 Residence (City) | Akron Town |
| 1935 Residence (County) | Washington |
| Occupation | Laborer |
| Industry | W.P.A. Construction |
| Class of Worker | GW |
| Hours Worked | 20 |
| Income (1939) | 737 |
| Highest Grade | No 2 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
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 Mcmullen across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Mcmullen
Head · 1940 · age 45 · b. ~1895 · Colorado
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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 — Washington-County, Colorado
Open full size
1940 US Federal Census — Washington-County, Colorado
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00480-00552)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Marceline Mcgreer | 20 | Head | Assistant | Colorado |
| 2 | Alva Van Winkley | 63 | Lodger | Clerk | Illinois |
| 3 | Raymond Gumbiner | 24 | Head | Farmer | Colorado |
| 4 | Mary Gumbiner | 27 | Wife | — | Colorado |
| 5 | John Parks | 57 | Head | — | Indiana |
| 6 | Lottie Parks | 56 | Wife | — | Iowa |
| 7 | Pauline Parks | 14 | Daughter | — | Colorado |
| 8 | Lloyd Herman | 29 | Head | — | Texas |
| 9 | John Mcmullen THIS PERSON | 45 | Head | Laborer | Kansas |
| 10 | Gladys Mcmullen | 42 | Wife | — | Kansas |
| 11 | Reginald Mcmullen | 20 | Son | Truck Driver | Kansas |
| 12 | Glen Mcmullen | 19 | Son | Laborer | Colorado |
| 13 | Bertha Mcmullen | 17 | Daughter | Maid | Colorado |
| 14 | Pat Mcmullen | 16 | Son | — | Colorado |
| 15 | Lucille Mcmullen | 14 | Daughter | — | Colorado |
| 16 | Earl Mcmullen | 12 | Son | — | Colorado |
| 17 | Erma Mcmullen | 8 | Daughter | — | Colorado |
| 18 | Frank Van Liew | 49 | Head | Clerk | Colorado |
| 19 | Nellie Van Liew | 45 | Wife | — | Nebraska |
| 20 | Donna Van Liew | 10 | Daughter | — | Colorado |
| 21 | Clarence Ludwig | 39 | Head | Proprietor | Iowa |
| 22 | Hannah Ludwig | 35 | Wife | Proprietor | Wisconsin |
| 23 | Marcella Ludwig | 14 | Daughter | — | Colorado |
| 24 | Loren Ludwig | 5 | Son | — | Colorado |
| 25 | Merlin Ludwig | 2 | Son | — | Colorado |
| 26 | Mary E. Clark | 57 | Head | Teacher | Nebraska |
| 27 | Albert Kitchen | 51 | Head | Laborer | Nebraska |
| 28 | Ida Kitchen | 20 | Wife | — | Colorado |
| 29 | Lloyd O. Thomas | 53 | Head | — | Iowa |
| 30 | Mary Thomas | 38 | Wife | — | Colorado |
| 31 | Glen Edward Thomas | 14 | Son | — | Colorado |
| 32 | Delut May Thomas | 12 | Daughter | — | Colorado |
| 33 | Rosemary Thomas | 11 | Daughter | — | Colorado |
| 34 | Sherman Davis | 30 | Head | Proprietor | Missouri |
| 35 | Oscar Vawter | 49 | Head | Laborer | Missouri |
| 36 | Charles K. Odell | 32 | Head | Cook | Nebraska |
| 37 | Lorraine M. Odell | 26 | Wife | — | Colorado |
| 38 | Charles Odell | 7 | Son | — | Colorado |
| 39 | Maurice Odell | 6 | Son | — | Colorado |
| 40 | Elinor I. Odell | 2 | Daughter | — | 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)