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John Mccormick — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Washington-County, Oklahoma
Our Model Tree links this John Mccormick across the 1920, 1930 and 1940 US Censuses in Washington-County, Oklahoma (XGBoost, ~Confirmed) — first a head (b.~1884), then head of a 3-person household.
Age 56
b. ~1884
Male
Head
Born: Ohio
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Washington-County, Oklahoma |
| Surname | McCormick |
| Given Name | John E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Bartlesville |
| 1935 Residence (County) | Washington |
| Additional Details | |
| Occupation | City Engineer |
| Industry | Construction |
| Class of Worker | PW |
| Hours Worked | 55 |
| Income (1939) | 2850 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | City Engineer |
| Township / Ward | Bartlesville |
| Est. Birth Year | ~1884 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Mccormick | Head | — | 56 | ~1884 |
| Kenneth Mccormick | Son | — | 21 | ~1919 |
| Annie Mccormick | Spouse | — | 55 | ~1885 |
Census Appearances
1920
Washington, Oklahoma
Head, age 36
Washington, Oklahoma · implied b. ~1884 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCormick |
| Given Name | John L. |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Civil Engineer |
| Industry | City |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Washington, Oklahoma
Head, age 46
Washington, Oklahoma · implied b. ~1884 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCormick |
| Given Name | John E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Ohio |
| Age at First Marriage | 26 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Civil Engineer |
| Industry | City |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 5000 |
| Radio Set | R |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Washington-County, Oklahoma
Head, age 56
Washington-County, Oklahoma · implied b. ~1884 — 3 household members
| Surname | McCormick |
| Given Name | John E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Bartlesville |
| 1935 Residence (County) | Washington |
| Occupation | City Engineer |
| Industry | Construction |
| Class of Worker | PW |
| Hours Worked | 55 |
| Income (1939) | 2850 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Mccormick across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Mccormick
Head · 1940 · age 56 · b. ~1884 · Oklahoma
★ 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 — Washington-County, Oklahoma
Open full size
1940 US Federal Census — Washington-County, Oklahoma
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-03339-00106)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Florence Lyngham | 39 | Lodger | Teacher | Iowa |
| 42 | Thomas H. Held | 34 | Head | Engineer | Kansas |
| 43 | Bernice E. Held | 34 | Wife | — | Kansas |
| 44 | Paula J. Held | 5 | Daughter | — | Oklahoma |
| 45 | Karen E. Held | 1 | Daughter | — | Oklahoma |
| 46 | Gladys Small | 35 | Lodger | Teacher | Maine |
| 47 | Harold L. Markley | 35 | Head | Engineer | Nebraska |
| 48 | Susan P. Markley | 30 | Wife | — | Oklahoma |
| 49 | Susan G. Markley | 1 | Daughter | — | Oklahoma |
| 50 | Dora M. Prout | 41 | Head | — | Oklahoma |
| 51 | Howard L. Farrow | 36 | Head | Research Chem | Texas |
| 52 | Emily M. Farrow | 39 | Wife | — | France |
| 53 | Rita M. Farrow | 4 | Daughter | — | Texas |
| 54 | Lawrence G. Molique | 29 | Head | Engineer | Illinois |
| 55 | Mildred M. Molique | 27 | Wife | — | Mississippi |
| 56 | Francis W. Helton | 22 | Head | Reporter | Wyoming |
| 57 | Carrie M. Helton | 22 | Wife | — | Mississippi |
| 58 | Milton W. Zain | 26 | Head | Advertising Mgr | Oklahoma |
| 59 | Jane E. Zain | 23 | Wife | — | Kentucky |
| 60 | Victoria J. Zain | 1 | Daughter | — | Oklahoma |
| 61 | Edith M. Wort | 26 | Servant | Maid | Oklahoma |
| 62 | R. J. C. Johnson | 46 | Head | Maid | Louisiana |
| 63 | Edwin D. Eaton | 57 | Head | Truck Driver | Kansas |
| 64 | Dot I. O. Eaton | 57 | Wife | — | Kansas |
| 65 | Arthur L. Harrisberger | 43 | Head | Broker | Kansas |
| 66 | Maude L. Harrisberger | 41 | Wife | — | Kansas |
| 67 | Jeanne L. Harrisberger | 14 | Daughter | — | Kansas |
| 68 | James L. Harrisberger | 3 | Son | — | Kansas |
| 69 | John E. Mccormick THIS PERSON | 56 | Head | City Engineer | Ohio |
| 70 | Annie H. Mccormick | 55 | Wife | — | Ohio |
| 71 | Kenneth Mccormick | 21 | Son | Draftsman | Oklahoma |
| 72 | Don Emery | 46 | Head | Gen Counsel | Pennsylvania |
| 73 | Hazel M. Emery | 39 | Wife | — | South Dakota |
| 74 | Robert J. Emery | 17 | Son | — | Oklahoma |
| 75 | Emily A. Emery | 14 | Daughter | — | Oklahoma |
| 76 | William D. Emery | 8 | Son | — | Texas |
| 77 | Joseph M. Emery | 77 | Father | Retired | Pennsylvania |
| 78 | Augustus C. Buffington | 39 | Head | Butler | Oklahoma |
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)