JN
James Nicholson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mahoning-County, Ohio
Our Model Tree links this James Nicholson across the 1930 and 1940 US Censuses in Mahoning-County, Ohio (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 10-person household.
Age 15
b. ~1925
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Mahoning-County, Ohio |
| Surname | Nicholson |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Youngstown |
| 1935 Residence (County) | Mahoning |
| Additional Details | |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Youngstown |
| Est. Birth Year | ~1925 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Frederick Nicholson | Son | — | 9 | ~1931 |
| Raymond Nicholson | Son | — | 11 | ~1929 |
| Juanita Nicholson | Daughter | — | 15 | ~1925 |
| James Nicholson | Son | — | 15 | ~1925 |
| Colas Robinson | Other | — | 27 | ~1913 |
| Louise Nicholson | Spouse | — | 53 | ~1887 |
| Raymond Nicholson | Head | — | 43 | ~1897 |
| Calvin Nicholson | Son | — | 18 | ~1922 |
| June Nicholson | Daughter | — | 17 | ~1923 |
| Rayola Nicholson | Daughter | — | 12 | ~1928 |
Census Appearances
1930
Mahoning, Ohio
Son, age 5
Mahoning, Ohio · implied b. ~1925 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nickelson |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Mahoning-County, Ohio
Son, age 15
Mahoning-County, Ohio · implied b. ~1925 — 10 household members
| Surname | Nicholson |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Youngstown |
| 1935 Residence (County) | Mahoning |
| Highest Grade | 8 |
| 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 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 15 · b. ~1925 · Ohio
★ You are viewing this record
Sibling
Raymond Nicholson
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Juanita Nicholson
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rayola Nicholson
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frederick Nicholson
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Calvin Nicholson
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
June Nicholson
Sibling · 1940 · age 17
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 — Mahoning-County, Ohio
Open full size
1940 US Federal Census — Mahoning-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03270-00490)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Annabel Shields | 32 | Wife | — | Maryland |
| 42 | Mary E. Rozier | 17 | Daughter | — | Maryland |
| 43 | Jesse Rozier | 13 | Son | — | Maryland |
| 44 | Estella Rozier | 5 | Daughter | — | Ohio |
| 45 | David Rozier | 17 | Son | Laborer | Georgia |
| 46 | Dolores Ann Rozier | 2 | Daughter | — | Ohio |
| 47 | Frances Rozier | 0 | Daughter | — | Ohio |
| 48 | James Spruill | 39 | Head | Hod-Carrier | W. Virginia |
| 49 | Nelva Spruill | 28 | Wife | — | Alabama |
| 50 | James Spruill | 10 | Son | — | Ohio |
| 51 | Lyle Frazier | 67 | Head | — | Pennsylvania |
| 52 | Richard Brown | 8 | Grandson | — | Ohio |
| 53 | John Gardner | 64 | Head | Laborer | Nebraska |
| 54 | Marie Gardner | 62 | Wife | — | Virginia |
| 55 | Betty Lancaster | 10 | Grandchild | — | Pennsylvania |
| 56 | Ruby Lancaster | 8 | Grandchild | — | Pennsylvania |
| 57 | Juanita Lancaster | 6 | Granddaughter | — | Ohio |
| 58 | Raymond Smith | 48 | Head | — | Pennsylvania |
| 59 | Gertrude Smith | 43 | Wife | — | Pennsylvania |
| 60 | Edward Harris | 38 | Head | Loader | Georgia |
| 61 | Alta Harris | 33 | Wife | — | Georgia |
| 62 | Odessa Harris | 13 | Daughter | — | Ohio |
| 63 | Otha Harris | 12 | Son | — | Ohio |
| 64 | Thomas Borskin | 77 | Head | — | Ohio |
| 65 | Raymond Nicholson | 43 | Head | Transferman | Pennsylvania |
| 66 | Louise Nicholson | 53 | Wife | — | Virginia |
| 67 | Colas Robinson | 27 | Stepson | — | Virginia |
| 68 | Calvin Nicholson | 18 | Son | — | Ohio |
| 69 | June Nicholson | 17 | Daughter | — | Ohio |
| 70 | James Nicholson THIS PERSON | 15 | Son | — | Ohio |
| 71 | Juanita Nicholson | 15 | Daughter | — | Ohio |
| 72 | Rayola Nicholson | 12 | Daughter | — | Ohio |
| 73 | Raymond Nicholson | 11 | Son | — | Ohio |
| 74 | Frederick Nicholson | 9 | Son | — | Ohio |
| 75 | — | None | — | — | — |
| 76 | Andrew Beveridge | 53 | Head | Rigger | Pennsylvania |
| 77 | Anna Beveridge | 49 | Wife | — | Scotland |
| 78 | Sarah Davis | 21 | Daughter | Housework | Ohio |
| 79 | Sherman Mccracken | 39 | Head | Pipe Threader | Pennsylvania |
| 80 | Mary E. Mccracken | 53 | Wife | — | 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)