MS
Mary Simpson — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Mercer, New Jersey
Our Model Tree links this Mary Simpson across the 1920, 1930 and 1940 US Censuses in Mercer, New Jersey (XGBoost, ~Confirmed) — first a head (b.~1871), then head of a 5-person household.
Age 49
b. ~1871
Female
Head
Born: Scotland
Widowed
1920 Census Record Details
| Census Year | 1920 |
| Location | Mercer, New Jersey |
| Surname | Simpson |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Widowed |
| Birthplace | Scotland |
| Year of Immigration | 1881 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | Scotland |
| Year of Naturalization | 1890 |
| Birthplace (normalized) | scotland |
| Township / Ward | Hamilton Township |
| Est. Birth Year | ~1871 |
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.
5 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Agnes Simpson | Daughter | — | 13 | ~1907 |
| Mary Simpson | Head | — | 49 | ~1871 |
| Alexander Simpson | Son | — | 7 | ~1913 |
| James Simpson | Son | — | 17 | ~1903 |
| Thomas Simpson | Son | — | 15 | ~1905 |
Census Appearances
1920
Mercer, New …
Head, age 49
Mercer, New Jersey · implied b. ~1871 — 5 household members
| Surname | Simpson |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Widowed |
| Birthplace | Scotland |
| Year of Immigration | 1881 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | Scotland |
| Year of Naturalization | 1890 |
| Birthplace (normalized) | scotland |
1930
Mercer, New …
Other, age 58
Mercer, New Jersey · implied b. ~1872 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Simpson |
| Given Name | Mary |
| Relationship to Head | mother-H |
| Sex | F |
| Color / Race | White |
| Age | 58 |
| Marital Status | Widowed |
| Birthplace | Scotland |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | none |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Mercer-County, New …
Other, age 68
Mercer-County, New Jersey · implied b. ~1872 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Simpson |
| Given Name | Mary |
| Relationship to Head | Mother |
| Sex | F |
| Color / Race | White |
| Age | 68 |
| Marital Status | Widowed |
| Birthplace | Scotland |
| 1935 Residence (City) | Trenton |
| 1935 Residence (County) | Mercer |
| Naturalization Status | Naturalized |
| Highest Grade | 6 |
| 1935 Residence | Same House |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
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 Simpson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Simpson
Head · 1920 · age 49 · b. ~1871 · New Jersey
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Mercer, New Jersey
Open full size
1920 US Federal Census — Mercer, New Jersey
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1053unit:0459)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Norman Wright | 16 | Boarder | Helper | New Jersey |
| 52 | Mary Simpson THIS PERSON | 49 | Head | — | Scotland |
| 53 | James B Simpson | 17 | Son | Pattern Maker | New Jersey |
| 54 | Thomas Simpson | 15 | Son | Tracer | New Jersey |
| 55 | Agnes Simpson | 13 | Daughter | — | New Jersey |
| 56 | Alexander Simpson | 7 | Son | — | New Jersey |
| 57 | George Donathan | 28 | Head | Foreman | England |
| 58 | Elsie Donathan | 2 | Daughter | — | New Jersey |
| 59 | George A Mount | 42 | Head | Machinist | New Jersey |
| 60 | Eva Mount | 34 | Wife | — | New York |
| 61 | Edith Donaton | 38 | Head | Forelady | Pennsylvania |
| 62 | Irene Cochran | 22 | Boarder | Stamper | New Jersey |
| 63 | Samuel B Ford | 58 | Boarder | Machinist | New Jersey |
| 64 | Oliver Donaton | 14 | Son | — | Pennsylvania |
| 65 | Robert Donaton | 11 | Son | — | Pennsylvania |
| 66 | John Snaddon | 32 | Head | Sheet Metal Worker | Pennsylvania |
| 67 | Ella Snaddon | 34 | Wife | — | Pennsylvania |
| 68 | John Snaddon | 13 | Son | — | Pennsylvania |
| 69 | Jessie Snaddon | 2 | Daughter | — | New Jersey |
| 70 | William Van Horn | 81 | Head | — | New Jersey |
| 71 | Sarah R Van Horn | 78 | Wife | — | New Jersey |
| 72 | Richard Van Horn | 48 | Son | Laborer | New Jersey |
| 73 | John Wesley Cray | 42 | Head | Presser | New Jersey |
| 74 | Catherine Cray | 38 | Wife | — | Ohio |
| 75 | Anna Cray | 13 | Daughter | — | New Jersey |
| 76 | Marion Cray | 6 | Daughter | — | New Jersey |
| 77 | John S Robbins | 52 | Head | Machinist | District of Columbia |
| 78 | Mary Robbins | 61 | Wife | — | New Jersey |
| 79 | William Thiele | 39 | Head | Piano Tuner | England |
| 80 | Catherine Thiele | 36 | Wife | — | Indiana |
| 81 | Eleanor Thiele | 7 | Daughter | — | New Jersey |
| 82 | Irene Thiele | 3 | Daughter | — | New Jersey |
| 83 | Samuel Schick | 48 | Head | Retail Merchant | Germany |
| 84 | Bessie Schick | 50 | Wife | — | Germany |
| 85 | Abraham Schick | 21 | Son | Clerk | Pennsylvania |
| 86 | Rebecca Schick | 19 | Daughter | Stenographer | Pennsylvania |
| 87 | Beatrice Schick | 18 | Daughter | Cashier | Pennsylvania |
| 88 | Dora Schick | 15 | Daughter | Clerk | Pennsylvania |
| 89 | Bertha Schick | 13 | Daughter | — | Pennsylvania |
| 90 | John W Stair | 50 | Head | Laborer | New Jersey |
| 91 | Minnie Stair | 50 | Wife | — | New Jersey |
| 92 | Nettie Johnson | 42 | Boarder | Helper | New Jersey |
| 93 | Cora Voorhees | 54 | Head | Plumber | New Jersey |
| 94 | Phoebe Voorhees | 55 | Wife | — | New Jersey |
| 95 | John Voorhees | 20 | Son | Tube Maker | New Jersey |
| 96 | Paul Voorhees | 11 | Son | — | New Jersey |
| 97 | Phoebe Baker | 60 | Head | — | New Jersey |
| 98 | John Baker | 35 | Son | Tire Maker | New Jersey |
| 99 | Harry Baker | 28 | Son | Tire Maker | New Jersey |
| 100 | Anna Baker | 23 | Daughter-in-law | — | New Jersey |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)