MK
Mary Kerr — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Hudson, New Jersey
Our Model Tree links this Mary Kerr across the 1930 and 1940 US Censuses in Hudson, New Jersey (XGBoost, ~Confirmed) — first a daughter (b.~1923), then head of a 6-person household.
Age 7
b. ~1923
Female
Daughter
Born: New Jersey
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Hudson, New Jersey |
| Surname | Kerr |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| 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 | Jersey City |
| 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.
6 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Kerr | Daughter | — | 7 | ~1923 |
| James Kerr | Head | — | 35 | ~1895 |
| James Kerr | Son | — | 9 | ~1921 |
| William Kerr | Son | — | 5 | ~1925 |
| Mary Kerr | Spouse | — | 33 | ~1897 |
| Alice Kerr | Daughter | — | 3 | ~1927 |
Census Appearances
1930
Hudson, New …
Daughter, age 7
Hudson, New Jersey · implied b. ~1923 — 6 household members
| Surname | Kerr |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| 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
Hudson-County, New …
Daughter, age 17
Hudson-County, New Jersey · implied b. ~1923 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | KIERRE |
| Given Name | MARIE |
| Relationship to Head | DAUGHTER |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | NEW JERSEY |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Occupation | NEW-WORKER |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | No 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 Kerr across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Kerr
Daughter · 1930 · age 7 · b. ~1923 · New Jersey
★ You are viewing this record
Sibling
William Kerr
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Kerr
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Kerr
Sibling · 1930 · age 3
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 — Hudson, New Jersey
Open full size
1930 US Federal Census — Hudson, New Jersey
Page Contents
50 people indexed on this census page (ia:1930:newjerseycensus00reel1356:0921)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Harry Cohol | 26 | Head | Clerk | New Jersey |
| 2 | Ruth Cohol | 25 | Wife | — | New Jersey |
| 3 | Ruth Cohol | 1 | Daughter | — | New Jersey |
| 4 | Sarah Weinberg | 61 | Mother-in-law | — | Russia |
| 5 | John Mattern | 45 | Lodger | Machinist | New Jersey |
| 6 | Mary Mattern | 40 | Lodger | — | New Jersey |
| 7 | John Mattern | 18 | Lodger | Clerk | New Jersey |
| 8 | William Karr | 32 | Head | Clerk | New Jersey |
| 9 | Frieda Karr | 30 | Wife | — | New Jersey |
| 10 | Dolores Karr | 9 | Daughter | — | New Jersey |
| 11 | William Karr | 7 | Son | — | New Jersey |
| 12 | Walter Karr | 4 | Son | — | New Jersey |
| 13 | Eleanor Karr | 1 | Daughter | — | New Jersey |
| 14 | John Moore | 47 | Head | Laborer | New Jersey |
| 15 | Mary Moore | 45 | Wife | — | New Jersey |
| 16 | Alice Moore | 18 | Daughter | Clerk | New Jersey |
| 17 | John Moore | 16 | Son | Clerk | New Jersey |
| 18 | William Moore | 14 | Son | — | New Jersey |
| 19 | James Moore | 12 | Son | — | New Jersey |
| 20 | Alice Harrigan | 40 | Sister-in-law | Clerk | New Jersey |
| 21 | William Harrigan | 38 | Brother-in-law | Laborer | New Jersey |
| 22 | James Harrigan | 36 | Brother-in-law | Laborer | New Jersey |
| 23 | Thomas Harrigan | 34 | Brother-in-law | Laborer | New Jersey |
| 24 | Leo Mayer | 32 | Head | Clerk | New Jersey |
| 25 | Alice Mayer | 30 | Wife | — | New Jersey |
| 26 | Leo Mayer | 7 | Son | — | New Jersey |
| 27 | Alice Mayer | 5 | Daughter | — | New Jersey |
| 28 | Joseph Mayer | 40 | Head | Laborer | New Jersey |
| 29 | Mary Mayer | 38 | Wife | — | New Jersey |
| 30 | Joseph Mayer | 12 | Son | — | New Jersey |
| 31 | James Kerr | 35 | Head | Clerk | New Jersey |
| 32 | Mary Kerr | 33 | Wife | — | New Jersey |
| 33 | James Kerr | 9 | Son | — | New Jersey |
| 34 | Mary Kerr THIS PERSON | 7 | Daughter | — | New Jersey |
| 35 | William Kerr | 5 | Son | — | New Jersey |
| 36 | Alice Kerr | 3 | Daughter | — | New Jersey |
| 37 | Fred Conrad | 40 | Head | Machinist | New Jersey |
| 38 | Mary Conrad | 38 | Wife | — | New Jersey |
| 39 | Fred Conrad | 16 | Son | Clerk | New Jersey |
| 40 | Mary Conrad | 14 | Daughter | — | New Jersey |
| 41 | John Suda | 51 | Head | Machinist | Germany |
| 42 | Emil Suda | 24 | Son | Clerk | New Jersey |
| 43 | Otto Suda | 22 | Son | Clerk | New Jersey |
| 44 | Edward Suda | 20 | Son | Clerk | New Jersey |
| 45 | Fred Smith | 54 | Head | Machinist | New York |
| 46 | Kate Smith | 52 | Wife | — | New York |
| 47 | Fred Hettauch | 54 | Head | Machinist | New Jersey |
| 48 | Henrietta Hettauch | 52 | Wife | — | New York |
| 49 | Fred Hettauch | 24 | Son | Clerk | New Jersey |
| 50 | Charles Suter | 55 | Head | Machinist | Germany |
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)