JN
James Nicholson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Fayette-County, Pennsylvania
Our Model Tree links this James Nicholson across the 1930 and 1940 US Censuses in Fayette-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1920), then head of a 8-person household.
Age 20
b. ~1920
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Fayette-County, Pennsylvania |
| Surname | Nicholson |
| Given Name | James Warren |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Luzerne Twp |
| 1935 Residence (County) | Fayette |
| Additional Details | |
| Occupation | labor |
| Industry | W. P. A. |
| Class of Worker | PW |
| Hours Worked | 106 |
| Income (1939) | 988 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Labor |
| Township / Ward | Luzerne Twp |
| Est. Birth Year | ~1920 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Anna Nicholson | Spouse | — | 49 | ~1891 |
| Helen Nicholson | Daughter | — | 18 | ~1922 |
| Herbert Nicholson | Son | — | 15 | ~1925 |
| Mike Kovalchik | Other | — | 29 | ~1911 |
| Harry Nicholson | Head | — | 52 | ~1888 |
| Pleasant Nicholson | Daughter | — | 12 | ~1928 |
| Elizabeth Kovalchik | Daughter | — | 24 | ~1916 |
| James Nicholson | Son | — | 20 | ~1920 |
Census Appearances
1930
Greene, Pennsylvania
Son, age 10
Greene, Pennsylvania · implied b. ~1920 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nicholson |
| Given Name | James W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Fayette-County, Pennsylvania
Son, age 20
Fayette-County, Pennsylvania · implied b. ~1920 — 8 household members
| Surname | Nicholson |
| Given Name | James Warren |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Luzerne Twp |
| 1935 Residence (County) | Fayette |
| Occupation | labor |
| Industry | W. P. A. |
| Class of Worker | PW |
| Hours Worked | 106 |
| Income (1939) | 988 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 James Nicholson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Nicholson
Son · 1940 · age 20 · b. ~1920 · Pennsylvania
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Sibling
Herbert Nicholson
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Nicholson
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Kovalchik
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Pleasant Nicholson
Sibling · 1940 · age 12
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 — Fayette-County, Pennsylvania
Open full size
1940 US Federal Census — Fayette-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03505-00333)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Beatrice Kovalcheck | 14 | daughter | — | Pennsylvania |
| 2 | Della Kovalcheck | 12 | daughter | — | Pennsylvania |
| 3 | Betty Kovalcheck | 11 | daughter | — | Pennsylvania |
| 4 | Delbert Kovalcheck | 9 | son | — | Pennsylvania |
| 5 | Herbert Deach | 32 | head | Labor | Pennsylvania |
| 6 | Alice Deach | 30 | wife | — | Pennsylvania |
| 7 | William Deach | 11 | son | — | Pennsylvania |
| 8 | Kenneth Deach | 9 | son | — | Pennsylvania |
| 9 | Sarah Deach | 7 | daughter | — | Pennsylvania |
| 10 | Robert Deach | 5 | son | — | Pennsylvania |
| 11 | Gloria Deach | 2 | daughter | — | Pennsylvania |
| 12 | Andrew Ainsley | 38 | head | Labor | Pennsylvania |
| 13 | Gertie Mae Ainsley | 35 | wife | — | Pennsylvania |
| 14 | Andrew Ainsley | 14 | son | — | Pennsylvania |
| 15 | Betty Ainsley | 12 | daughter | — | Pennsylvania |
| 16 | Catherine Ainsley | 10 | daughter | — | Pennsylvania |
| 17 | Robert Ainsley | 8 | son | — | Pennsylvania |
| 18 | Kenneth Ainsley | 3 | son | — | Pennsylvania |
| 19 | Andy Hubricak | 67 | head | Labor | Hungary |
| 20 | Julia Hubricak | 64 | wife | — | Hungary |
| 21 | Gertrude Moore | 38 | head | — | Pennsylvania |
| 22 | Beatrice Moore | 20 | daughter | Sewing | Pennsylvania |
| 23 | Charles Moore | 17 | son | — | Pennsylvania |
| 24 | Steve Kovachick | 40 | head | Labor | Pennsylvania |
| 25 | Bertha Kovachick | 36 | wife | — | W. Virginia |
| 26 | Mark Mc Graw | 44 | head | Labor | W. Virginia |
| 27 | Ralph Mc Graw | 37 | brother | Labor | W. Virginia |
| 28 | James Purt | 30 | head | Labor | Pennsylvania |
| 29 | Mary Purt | 23 | wife | — | Pennsylvania |
| 30 | Rose Marie Purt | 5 | daughter | — | Pennsylvania |
| 31 | James Purt | 3 | son | — | Pennsylvania |
| 32 | Arthur Purt | 1 | son | — | Pennsylvania |
| 33 | Harry Nicholson | 52 | head | Labor | Pennsylvania |
| 34 | Anna Nicholson | 49 | wife | — | Pennsylvania |
| 35 | James Warren Nicholson THIS PERSON | 20 | son | Labor | Pennsylvania |
| 36 | Helen Nicholson | 18 | daughter | — | Pennsylvania |
| 37 | Herbert Nicholson | 15 | son | — | Pennsylvania |
| 38 | Pleasant Nicholson | 12 | daughter | — | Pennsylvania |
| 39 | Mike Kovalchik | 29 | son-in-law | Labor | Pennsylvania |
| 40 | Elizabeth Kovalchik | 24 | daughter | — | Pennsylvania |
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)