MN
Mary Nicholson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cumberland-County, New Jersey
Our Model Tree links this Mary Nicholson across the 1930 and 1940 US Censuses in Cumberland-County, New Jersey (XGBoost, ~Confirmed) — first a daughter (b.~1920), then head of a 7-person household.
Age 20
b. ~1920
Female
Daughter
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cumberland-County, New Jersey |
| Surname | Nicholson |
| Given Name | Mary C. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Commercial |
| 1935 Residence (County) | Cumberland |
| Additional Details | |
| Occupation | Private Secretary |
| Industry | Sand Company |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 527 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Private Secretary |
| Township / Ward | Commercial |
| 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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Alvin Nicholson | Head | — | 42 | ~1898 |
| Gertrude Nicholson | Daughter | — | 17 | ~1923 |
| Mary Nicholson | Daughter | — | 20 | ~1920 |
| Carol Nicholson | Daughter | — | 2 | ~1938 |
| Sarah Nicholson | Spouse | — | 46 | ~1894 |
| Alvera Nicholson | Daughter | — | 5 | ~1935 |
| Isabell Nicholson | Daughter | — | 13 | ~1927 |
Census Appearances
1930
Cumberland, New …
Daughter, age 10
Cumberland, New Jersey · implied b. ~1920 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | NICKELSON |
| Given Name | MARY E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Cumberland-County, New …
Daughter, age 20
Cumberland-County, New Jersey · implied b. ~1920 — 7 household members
| Surname | Nicholson |
| Given Name | Mary C. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Commercial |
| 1935 Residence (County) | Cumberland |
| Occupation | Private Secretary |
| Industry | Sand Company |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 527 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
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 Mary Nicholson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Nicholson
Daughter · 1940 · age 20 · b. ~1920 · New Jersey
★ You are viewing this record
Sibling
Alvera Nicholson
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gertrude Nicholson
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carol Nicholson
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Isabell Nicholson
Sibling · 1940 · age 13
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 — Cumberland-County, New Jersey
Open full size
1940 US Federal Census — Cumberland-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02325-00505)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Paul Handley | 13 | Son | — | New Jersey |
| 42 | Betty Handley | 11 | Daughter | — | New Jersey |
| 43 | Judith Handley | 8 | Daughter | — | New Jersey |
| 44 | William Handley | 6 | Son | — | New Jersey |
| 45 | Martha Emma | 62 | Mother | — | New Jersey |
| 46 | Alvin C. Nicholson | 42 | Head | Asst. Foreman | New Jersey |
| 47 | Sarah E. Nicholson | 46 | Wife | — | New Jersey |
| 48 | Mary C. Nicholson THIS PERSON | 20 | Daughter | Private Secretary | New Jersey |
| 49 | Gertrude S. Nicholson | 17 | Daughter | — | New Jersey |
| 50 | Isabell S. Nicholson | 13 | Daughter | — | New Jersey |
| 51 | Alvera J. Nicholson | 5 | Daughter | — | New Jersey |
| 52 | Carol A. Nicholson | 2 | Daughter | — | New Jersey |
| 53 | Wesley J. Adams | 77 | Head | — | New Jersey |
| 54 | Ella A. Adams | 71 | Wife | — | New Jersey |
| 55 | Robert L. Adams | 33 | Head | Glass Shipper | New Jersey |
| 56 | Jane F. D. Adams | 32 | Wife | — | New Jersey |
| 57 | Edward L. Adams | 5 | Son | — | New Jersey |
| 58 | Harry A. Miller | 31 | Head | Hay Farmer | New Jersey |
| 59 | Susan G. Miller | 29 | Wife | — | New Jersey |
| 60 | Clarence Miller | 13 | Son | — | New Jersey |
| 61 | Warren Miller | 10 | Son | — | New Jersey |
| 62 | Alice N. Miller | 3 | Daughter | — | New Jersey |
| 63 | Sadie O. Chamberlain | 52 | Head | Laborer | New Jersey |
| 64 | Gilbert R. Chamberlain | 25 | Son | Newspaper Boy | New Jersey |
| 65 | Frank Chamberlain | 18 | Son | — | New Jersey |
| 66 | James G. Nicole | 46 | Head | — | Pennsylvania |
| 67 | Joseph Nicole | 25 | Son | Farm Manager | New Jersey |
| 68 | Mildred Berry | 28 | Daughter | Laborer | New Jersey |
| 69 | Barbara Berry | 5 | Daughter | — | New Jersey |
| 70 | David L. Berry | 64 | Head | Farm Owner | New Jersey |
| 71 | Carrie M. Berry | 53 | Wife | — | New Jersey |
| 72 | Anna N. Berry | 17 | Daughter | — | New Jersey |
| 73 | Harold Mcdaniel | 40 | Head | Insurance Agent | New Jersey |
| 74 | Mary J. Mcdaniel | 42 | Wife | — | New Jersey |
| 75 | Betsy A. Mcdaniel | 8 | Daughter | — | New Jersey |
| 76 | Rhoda B. Morris | 42 | Head | — | New Jersey |
| 77 | James R. Morris | 12 | Son | — | New Jersey |
| 78 | Florence C. Morris | 12 | Daughter | — | New Jersey |
| 79 | Charlotte L. Morris | 8 | Daughter | — | New Jersey |
| 80 | Harry Handley | 18 | Lodger | Laborer | New Jersey |
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)