MH
Mary Hart — 1930 US Census Record
Model Tree available1930 United States Federal Census · Essex, New Jersey
Our Model Tree links this Mary Hart across the 1910, 1920, 1930 and 1940 US Censuses in Essex, New Jersey (XGBoost, ~Confirmed), with identified parents Virginia & Elias — first a daughter (b.~1909), then head of a 7-person household.
Age 21
b. ~1909
Female
Daughter
Born: New Jersey
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Essex, New Jersey |
| Surname | Hart |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Township / Ward | East Orange City |
| Est. Birth Year | ~1909 |
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 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Hart | Daughter | — | 21 | ~1909 |
| Anne Hart | Daughter | — | 12 | ~1918 |
| Virginia Hart | Head | — | 49 | ~1881 |
| Alberta Mcdaniel | Other | — | 30 | ~1900 |
| Mary Cook | Other | — | 56 | ~1874 |
| Hattie Reid | Other | — | 40 | ~1890 |
| Hamilton Hart | Son | — | 17 | ~1913 |
Census Appearances
1910
Essex, New …
Daughter, age 1
Essex, New Jersey · implied b. ~1909 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hart |
| Given Name | Mary H |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1920
Essex, New …
Daughter, age 10
Essex, New Jersey · implied b. ~1910 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hart |
| Given Name | Mary |
| 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 |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Essex, New …
Daughter, age 21
Essex, New Jersey · implied b. ~1909 — 7 household members
| Surname | Hart |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| 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
Essex-County, New …
Spouse, age 31
Essex-County, New Jersey · implied b. ~1909 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hart |
| Given Name | Marie |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | New Jersey |
| 1935 Residence (City) | Newark City |
| 1935 Residence (County) | Essex |
| Income (1939) | 0 |
| Highest Grade | 7 |
| 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 Hart across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Virginia Hart (~0.92 confidence) and father Elias Hart (~0.92 confidence) and father Percy Hart (~0.92 confidence) and mother Emily Hart (~0.92 confidence) and mother Carrie Hart (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Virginia Hart
b. ~1881
Source mother
● Household
· direct · ~0.92
Father
Elias Hart
b. ~1882
Source father
● Household
· direct · ~0.92
Father
Percy Hart
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Emily Hart
b. ~1884
Source mother
● Household
· direct · ~0.92
Mother
Carrie Hart
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Hart
Daughter · 1930 · age 21 · b. ~1909 · New Jersey
★ You are viewing this record
Sibling
Anne Hart
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hamilton Hart
Sibling · 1930 · 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
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:newjerseycensus00reel1329:0733)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Thomas Pope | 41 | Head | Manager | Connecticut |
| 52 | Maud Pope | 42 | Wife | Bookkeeper | Rhode Island |
| 53 | Thomas Jr. Pope | 9 | Son | — | New Jersey |
| 54 | Richard Pope | 6 | Son | — | New Jersey |
| 55 | Joan Bastoque | 29 | Boarder | Steamfitter | Portugal |
| 56 | George Newton | 32 | Head | Accountant | New Jersey |
| 57 | Florence Newton | 31 | Wife | — | New Jersey |
| 58 | George Jr. Newton | 10 | Son | — | New Jersey |
| 59 | Florence Newton | 9 | Daughter | — | New Jersey |
| 60 | Pearl Kenney | 23 | Boarder | Clerk | New Jersey |
| 61 | Eleanor Eleanor | 21 | Boarder | Clerk | New Jersey |
| 62 | Gladys Meeker | 23 | Lodger | Reg. Nurse | New Jersey |
| 63 | Marion Kohler | 24 | Lodger | Practical Nurse | New York |
| 64 | Margaret Luse | 57 | Lodger | Cook | New Jersey |
| 65 | Rosabelle Wood | 38 | Lodger | Maid | Scotland |
| 66 | David Mackey | 44 | Head | Promoter | Scotland |
| 67 | Cornelia Mackey | 28 | Wife | — | New Jersey |
| 68 | Jane G. Mackey | 8 | Daughter | — | New Jersey |
| 69 | Edward S. Trainy | 55 | Head | — | Indiana |
| 70 | Irene Bentley | 48 | Housekeeper | Servant | Pennsylvania |
| 71 | Charles Schutter | 78 | Head | — | New York |
| 72 | Charles C. Schutter | 78 | Wife | — | New York |
| 73 | Margaret Mcdermott | 42 | Servant | Servant | Irish Free State |
| 74 | John D. Wallace | 56 | Head | Contractor | Irish Free State |
| 75 | Harriet M. Wallace | 59 | Wife | — | Canada English |
| 76 | John D. Jr. Wallace | 28 | Son | Clerk & Treas | New Jersey |
| 77 | Valentine Braun | 62 | Head | Owner & Mgr | New Jersey |
| 78 | Katherine Braun | 59 | Sister | — | New Jersey |
| 79 | Elizabeth Braun | 52 | Sister | — | New Jersey |
| 80 | Amelia L. Braun | 33 | Niece | Bookkeeper | New Jersey |
| 81 | Louise Ortwein | 27 | Servant | Servant | Germany |
| 82 | Fred Krolgh | 50 | Head | Estimator | New Jersey |
| 83 | Madeline A. Krolgh | 49 | Wife | — | New Jersey |
| 84 | Madeline A. Krolgh | 26 | Daughter | Secretary | New Jersey |
| 85 | Marie A. Krolgh | 24 | Daughter | Stenographer | New Jersey |
| 86 | Adelaide C. Krolgh | 16 | Daughter | — | New Jersey |
| 87 | Elsy A. Clayton | 48 | Head | Sec. Treasurer | New Jersey |
| 88 | Leila A. Clayton | 46 | Wife | — | New Jersey |
| 89 | Claudia Hankinson | 40 | Sister-in-law | Bookkeeper | New Jersey |
| 90 | Marion Asbury | 24 | Daughter | Teacher | New Jersey |
| 91 | Bessie W. Cooks | 69 | Head | — | Iowa |
| 92 | Bessie Cooks | 34 | Daughter | — | Michigan |
| 93 | Virginia Hart | 49 | Head | — | New Jersey |
| 94 | Mary Hart THIS PERSON | 21 | Daughter | — | New Jersey |
| 95 | Hamilton Hart | 17 | Son | — | New Jersey |
| 96 | Anne Hart | 12 | Daughter | — | New Jersey |
| 97 | Mary Cook | 56 | Servant | Servant | New Jersey |
| 98 | Hattie Reid | 40 | Servant | Servant | North Carolina |
| 99 | Alberta Mcdaniel | 30 | Servant | Servant | District of Columbia |
| 100 | J. P. Hall | 61 | Head | — | Indiana |
Pedigree Summary
Mary + 2 siblings
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
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)