JN
John Nicholson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Harvey-County, Kansas
Our Model Tree links this John Nicholson across the 1920, 1930 and 1940 US Censuses in Harvey-County, Kansas (XGBoost, ~Confirmed) — first a head (b.~1862), then head of a 4-person household.
Age 78
b. ~1862
Male
Head
Born: Indiana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Harvey-County, Kansas |
| Surname | Nicholson |
| Given Name | John C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 78 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Newton City |
| 1935 Residence (County) | Harvey |
| Additional Details | |
| Occupation | Lawyer |
| Industry | private practice |
| Class of Worker | OA |
| Hours Worked | 20 |
| Income (1939) | 93450 |
| Highest Grade | No H 4 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Lawyer |
| Township / Ward | Newton City |
| Est. Birth Year | ~1862 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Lottie Nicholson | Spouse | — | 63 | ~1877 |
| Malcolm Nicholson | Son | — | 20 | ~1920 |
| Warren Nicholson | Son | — | 18 | ~1922 |
| John Nicholson | Head | — | 78 | ~1862 |
Census Appearances
1920
Harvey, Kansas
Head, age 58
Harvey, Kansas · implied b. ~1862 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nicholson |
| Given Name | John C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Indiana |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Indiana |
| Occupation | Lawyer |
| Industry | Farmer |
| Class of Worker | Emp |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Harvey, Kansas
Head, age 68
Harvey, Kansas · implied b. ~1862 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nicholson |
| Given Name | John C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 68 |
| Marital Status | Married |
| Birthplace | Indiana |
| Age at First Marriage | 21 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Indiana |
| Occupation | Attorney at law |
| Industry | Law office |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 10,000 |
| Radio Set | R |
| Veteran | No |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Harvey-County, Kansas
Head, age 78
Harvey-County, Kansas · implied b. ~1862 — 4 household members
| Surname | Nicholson |
| Given Name | John C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 78 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Newton City |
| 1935 Residence (County) | Harvey |
| Occupation | Lawyer |
| Industry | private practice |
| Class of Worker | OA |
| Hours Worked | 20 |
| Income (1939) | 93450 |
| Highest Grade | No H 4 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 Nicholson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Nicholson
Head · 1940 · age 78 · b. ~1862 · Kansas
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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 — Harvey-County, Kansas
Open full size
1940 US Federal Census — Harvey-County, Kansas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01234-00905)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Maud Alice Woods | 21 | Daughter | Nurse | Kansas |
| 42 | Martha Woods | 17 | Daughter | — | Kansas |
| 43 | Robert L. Bower | 78 | Head | — | Illinois |
| 44 | Katherine Q. Bower | 63 | Wife | — | Kansas |
| 45 | Jesse E. Sommerville | 58 | Head | Miller | Kansas |
| 46 | Viola D. Sommerville | 51 | Wife | — | Kansas |
| 47 | Cora D. Small | 72 | Head | — | Pennsylvania |
| 48 | James A. Ullery | 49 | Head | Sales Tax Auditor | Missouri |
| 49 | Edna B. Ullery | 40 | Wife | — | Kansas |
| 50 | Edna Jean Ullery | 10 | Daughter | — | Kansas |
| 51 | Neil D. Harvey | 41 | Head | Salesman | Iowa |
| 52 | Gladys D. Harvey | 32 | Wife | — | Kansas |
| 53 | Priscilla Jane Harvey | 4 | Daughter | — | Kansas |
| 54 | Betty Brown | 25 | Lawn-in | Cook | Kansas |
| 55 | Elva I. Wallace | 30 | Head | Beauty Operator | Kansas |
| 56 | Charles Ray Wallace | 11 | Son | — | South Dakota |
| 57 | Anna Belle Wallace | 9 | Daughter | — | Kansas |
| 58 | Beverly Wallace | 7 | Daughter | — | Nebraska |
| 59 | Willis Wayne Wallace | 6 | Son | — | Nebraska |
| 60 | Ruth Wallace | 35 | Head | House-Keeper | Kansas |
| 61 | Katherine A. Wallace | 15 | Daughter | — | Kansas |
| 62 | John C. Nicholson THIS PERSON | 78 | Head | Lawyer | Indiana |
| 63 | Lottie B. Nicholson | 63 | Wife | — | Kansas |
| 64 | Malcolm B. Nicholson | 20 | Son | — | Kansas |
| 65 | Warren G. Nicholson | 18 | Son | — | Kansas |
| 66 | — | None | — | — | — |
| 67 | Reuben B. Koehn | 55 | Head | Contractor | Kansas |
| 68 | Margaret R. Koehn | 52 | Wife | — | Russia |
| 69 | Edith Mckinley | 31 | Lodger | Teacher | Illinois |
| 70 | Peter M. Claassen | 82 | Head | Owner | Germany |
| 71 | Mary E. Claassen | 42 | Daughter | — | Kansas |
| 72 | Agatha G. Claassen | 39 | Daughter | — | Kansas |
| 73 | William Libhart | 65 | Head | Carpenter | Pennsylvania |
| 74 | Maggie A. Libhart | 55 | Wife | — | Arkansas |
| 75 | William Jr. Libhart | 20 | Son | Attendant | Kansas |
| 76 | Nina May Libhart | 16 | Daughter | — | Kansas |
| 77 | Mary Dodds | 87 | Head | — | Missouri |
| 78 | Burrel Dodds | 30 | Grandson | Truck Driver | Idaho |
| 79 | Lois May | 22 | Lodger | Laborer | Minnesota |
| 80 | Martin Head Munkirs | 42 | Head | Grader | Missouri |
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)