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Mary Griffith — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Hunterdon, New Jersey
Our Model Tree links this Mary Griffith across the 1930 and 1940 US Censuses in Hunterdon, New Jersey (XGBoost, ~Confirmed) — first a daughter (b.~1919), then head of a 10-person household.
Age 11
b. ~1919
Female
Daughter
Born: New Jersey
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Hunterdon, New Jersey |
| Surname | Griffith |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Wales |
| 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 | Lambertville |
| Est. Birth Year | ~1919 |
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 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Margaret Griffith | Daughter | — | 5 | ~1925 |
| Ann Griffith | Daughter | — | 10 | ~1920 |
| Mary Griffith | Daughter | — | 11 | ~1919 |
| Catherine Griffith | Daughter | — | 17 | ~1913 |
| Mildred Griffith | Daughter | — | 12 | ~1918 |
| Robert Griffith | Head | — | 44 | ~1886 |
| Margaret Griffith | Other | — | 38 | ~1892 |
| Jack Griffith | Son | — | 7 | ~1923 |
| Thomas Griffith | Son | — | 15 | ~1915 |
| Robert Griffith | Son | — | 8 | ~1922 |
Census Appearances
1930
Hunterdon, New …
Daughter, age 11
Hunterdon, New Jersey · implied b. ~1919 — 10 household members
| Surname | Griffith |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Wales |
| Mother's Birthplace | New Jersey |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Hunterdon-County, New …
Spouse, age 21
Hunterdon-County, New Jersey · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Griffith |
| Given Name | Marian |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Married |
| Birthplace | New Jersey |
| 1935 Residence (City) | Lambertville |
| 1935 Residence (County) | Hunterdon |
| Hours Worked | 0 |
| Highest Grade | Hs 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 Griffith across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Griffith
Daughter · 1930 · age 11 · b. ~1919 · New Jersey
★ You are viewing this record
Sibling
Thomas Griffith
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Griffith
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mildred Griffith
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jack Griffith
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Griffith
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Griffith
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ann Griffith
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 — Hunterdon, New Jersey
Open full size
1930 US Federal Census — Hunterdon, New Jersey
Page Contents
50 people indexed on this census page (ia:1930:newjerseycensus00reel1361:0505)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | William Shoemaker | 60 | Head | Stationary Fireman | Germany |
| 52 | Anastasia Shoemaker | 59 | Wife-H | — | Penna |
| 53 | Mable Shoemaker | 25 | Daughter | Stenographer | New Jersey |
| 54 | James E. Monks | 62 | Lodger | Laborer | New Jersey |
| 55 | Wm Bross | 57 | Lodger | Machinist | New York |
| 56 | John Kramer | 27 | Head | Cutter | New Jersey |
| 57 | Margaret Kramer | 25 | Wife-H | — | New Jersey |
| 58 | Virginia Kramer | 4 | Daughter | — | New Jersey |
| 59 | Lemual Buchanan | 31 | Head | Cutter | New Jersey |
| 60 | Aletta Buchanan | 33 | Wife-H | — | New Jersey |
| 61 | Irene Ackerman | 22 | Lodger | Teacher | Penna |
| 62 | Carson Van Horn | 44 | Head | Washer | Penna |
| 63 | Susie Van Horn | 46 | Wife-H | — | New Jersey |
| 64 | Edward Fleming | 55 | Head | Caster | Penna |
| 65 | Catherine Fleming | 54 | Wife-H | — | Penna |
| 66 | Clarence Fleming | 22 | Son | Caster | New Jersey |
| 67 | Marie Fleming | 24 | Daughter | Cashier | New Jersey |
| 68 | Lewis Walton | 60 | Head | Driver | New Jersey |
| 69 | Raymond Walton | 24 | Son | Packer | New Jersey |
| 70 | Marion Walton | 16 | Daughter | — | New Jersey |
| 71 | John Keeher | 37 | Head | Laborer | Penna |
| 72 | Georgena Keeher | 37 | Wife-H | — | Connecticut |
| 73 | Raymond Keeher | 3 | Son | Laborer | Penna |
| 74 | Lissie Parker | 61 | Lodger | Laborer | New Jersey |
| 75 | Robert Griffith | 44 | Head | Shipping Clerk | Wales |
| 76 | Margaret Griffith | 38 | Wife-H | — | New Jersey |
| 77 | Catherine Griffith | 17 | Daughter | — | New Jersey |
| 78 | Thomas Griffith | 15 | Son | — | New Jersey |
| 79 | Mildred Griffith | 12 | Daughter | — | New Jersey |
| 80 | Mary Griffith THIS PERSON | 11 | Daughter | — | New Jersey |
| 81 | Ann Griffith | 10 | Daughter | — | New Jersey |
| 82 | Robert Jr. Griffith | 8 | Son | — | New Jersey |
| 83 | Jack Griffith | 7 | Son | — | New Jersey |
| 84 | Margaret Griffith | 5 | Daughter | — | New Jersey |
| 85 | John Bramels | 49 | Head | Farm Laborer | Delaware |
| 86 | Margaret Bramels | 48 | Wife-H | — | Maryland |
| 87 | Alfred Bramels | 21 | Son | Laborer | Delaware |
| 88 | Bartlett Kerr | 37 | Head | Caster | New Jersey |
| 89 | Ida Kerr | 36 | Wife-H | — | New Jersey |
| 90 | Donald Kerr | 12 | Son | — | New Jersey |
| 91 | Lewis Mussel-Man | 28 | Head | Mechanic | Penna |
| 92 | Addie Mussel-Man | 27 | Wife-H | — | New Jersey |
| 93 | Marion Mussel-Man | 2 | Daughter | — | New Jersey |
| 94 | Ada La Fever | 65 | Mother-Law | — | New Jersey |
| 95 | Cornelious Daniels | 47 | Head | Machine Tender | New Jersey |
| 96 | Martha Daniels | 46 | Wife-H | — | New Jersey |
| 97 | Cornelious Daniels | 18 | Son | Packer | New Jersey |
| 98 | William Bice | 58 | Head | Stationary Fireman | Penna |
| 99 | Emma Bice | 64 | Wife-H | — | Penna |
| 100 | <End> | None | — | — | — |
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)