MW
Mary William — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Essex, New Jersey
Our Model Tree links this Mary William across the 1930 and 1940 US Censuses in Essex, New Jersey (XGBoost, ~Confirmed) — first a daughter (b.~1923), then head of a 5-person household.
Age 7
b. ~1923
Female
Daughter
Born: New Jersey
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Essex, New Jersey |
| Surname | William |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 7 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Additional Details | |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Township / Ward | Town Of Montclair |
| Est. Birth Year | ~1923 |
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 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary William | Daughter | — | 7 | ~1923 |
| Lue William | Spouse | — | 30 | ~1900 |
| Joseph William | Son | — | 10 | ~1920 |
| James William | Head | — | 40 | ~1890 |
| Louise William | Daughter | — | 11 | ~1919 |
Census Appearances
1930
Essex, New …
Daughter, age 7
Essex, New Jersey · implied b. ~1923 — 5 household members
| Surname | William |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 7 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Essex-County, New …
Daughter, age 18
Essex-County, New Jersey · implied b. ~1922 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Marie |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | Black |
| Age | 18 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Orange |
| 1935 Residence (County) | Essex |
| Occupation | folder |
| Industry | pajama factory |
| Class of Worker | PW |
| Income (1939) | 143 |
| Highest Grade | No H-4 |
| 1935 Residence | New Jersey |
| 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 William across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary William
Daughter · 1930 · age 7 · b. ~1923 · New Jersey
★ You are viewing this record
Sibling
Louise William
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph William
Sibling · 1930 · age 10
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
1930 US Federal Census — Essex, New Jersey
Open full size
1930 US Federal Census — Essex, New Jersey
Page Contents
50 people indexed on this census page (ia:1930:newjerseycensus00reel1332:0755)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Catherine Lennon | 78 | Head | — | England |
| 2 | Edward Lennon | 50 | Son | — | New Jersey |
| 3 | William Lennon | 35 | Son | — | New Jersey |
| 4 | Mary Jones | 40 | Head | Dye Cutter | Virginia |
| 5 | William Jones | 25 | Son | Laborer | Virginia |
| 6 | Lizzie Harrison | 50 | Head | Laborer | Virginia |
| 7 | Alice Harrison | 21 | Daughter | Cook | New Jersey |
| 8 | Elizabeth Harrison | 19 | Daughter | — | New Jersey |
| 9 | Herman Harrison | 17 | Son | — | New Jersey |
| 10 | Mary Smith | 45 | Head | Waitress | Virginia |
| 11 | James William | 40 | Head | Laundress | Virginia |
| 12 | Lue William | 30 | Wife | Laborer | Virginia |
| 13 | Louise William | 11 | Daughter | — | New Jersey |
| 14 | Joseph William | 10 | Son | — | New Jersey |
| 15 | Mary William THIS PERSON | 7 | Daughter | — | New Jersey |
| 16 | Rosa Jackson | 50 | Head | — | Virginia |
| 17 | Melinda Williams | 36 | Head | Laundress | Virginia |
| 18 | Howard Williams | 41 | Lodger | Laborer | Virginia |
| 19 | Liggins Taft | 23 | Head | Laborer | Virginia |
| 20 | Ethel Taft | 22 | Wife | Mechanic | Virginia |
| 21 | Rose Lewis | 58 | Head | — | Virginia |
| 22 | Ben Starkman | 30 | Head | Laborer | North Carolina |
| 23 | Katie Starkman | 24 | Wife | Laborer | North Carolina |
| 24 | Catarina Starkman | 1 | Daughter | — | New Jersey |
| 25 | Julia Mitchell | 36 | Head | Laundress | Florida |
| 26 | Henry Johnson | 45 | Lodger | Finisher | South Carolina |
| 27 | Jim Mitchell | 13 | Son | Landscaping | Florida |
| 28 | Louis Caetano | 38 | Head | Carpenter | Italy |
| 29 | Concetta Caetano | 35 | Wife | — | Italy |
| 30 | John Caetano | 14 | Son | — | New Jersey |
| 31 | Mike Caetano | 12 | Son | — | New Jersey |
| 32 | Joe Caetano | 9 | Son | — | New Jersey |
| 33 | John Carlino | 35 | Head | Laborer | Italy |
| 34 | Mary Carlino | 33 | Wife | — | New Jersey |
| 35 | Dina Carlino | 14 | Daughter | — | New Jersey |
| 36 | Allison Carlino | 11 | Daughter | — | New Jersey |
| 37 | Bernardino Carlino | 6 | Son | — | New Jersey |
| 38 | Peter Andolino | 57 | Head | Carpenter | Italy |
| 39 | Mary Andolino | 46 | Wife | — | Italy |
| 40 | Charlie Andolino | 26 | Son | Helper | New Jersey |
| 41 | Lucy Andolino | 23 | Daughter | — | New Jersey |
| 42 | Jennie Andolino | 19 | Daughter | Clerk | New Jersey |
| 43 | Josephine Andolino | 17 | Daughter | — | New Jersey |
| 44 | Joseph Andolino | 30 | Son | Helper | New Jersey |
| 45 | Mary Andolino | 25 | Wife | — | New Jersey |
| 46 | Ralph Andolino | 1 | Son | — | New Jersey |
| 47 | Pasqual Cuzzo | 71 | Head | — | Italy |
| 48 | Theresa Cuzzo | 65 | Wife | — | Italy |
| 49 | Mary Cuzzo | 35 | Daughter | — | New Jersey |
| 50 | Patsy Cuzzo | 11 | Grandson | — | New Jersey |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)