MS
Mary Sweeney — 1930 US Census Record
Model Tree available1930 United States Federal Census · Mercer, New Jersey
Our Model Tree links this Mary Sweeney across the 1910, 1920 and 1930 US Censuses in Mercer, New Jersey (XGBoost, ~Confirmed), with identified parents Richard & Richard — first a daughter (b.~1904), then head of a 6-person household.
Age 26
b. ~1904
Female
Daughter
Born: New Jersey
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Mercer, New Jersey |
| Surname | Sweeney |
| Given Name | Mary H. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Township / Ward | Hamilton Township |
| Est. Birth Year | ~1904 |
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 |
|---|---|---|---|---|
| Elizabeth Sweeney | Daughter | — | 20 | ~1910 |
| Mary Sweeney | Daughter | — | 26 | ~1904 |
| Helen Sweeney | Daughter | — | 18 | ~1912 |
| Sarah Sweeney | Head | — | 50 | ~1880 |
| John Sweeney | Son | — | 29 | ~1901 |
| Edward Sweeney | Son | — | 22 | ~1908 |
Census Appearances
1910
Mercer, New …
Daughter, age 5
Mercer, New Jersey · implied b. ~1905 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sweeney |
| Given Name | Martha H. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | Black |
| Age | 5 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Occupation | none |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1920
Mercer, New …
Daughter, age 15
Mercer, New Jersey · implied b. ~1905 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sweeney |
| Given Name | Martha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 15 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Mercer, New …
Daughter, age 26
Mercer, New Jersey · implied b. ~1904 — 6 household members
| Surname | Sweeney |
| Given Name | Mary H. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Can Read/Write | Yes |
| 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 Sweeney across 3 US Census years (1910, 1920 and 1930) in Mercer, New Jersey, using XGBoost record linkage. Identified parents: father Richard Sweeney (~0.92 confidence) and father Richard Sweeney (~0.92 confidence) and mother Cora Sweeney (~0.92 confidence) and mother Sarah Sweeney (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Richard Sweeney
b. ~1862
Source father
● Household
· direct · ~0.92
Father
Richard Sweeney
b. ~1868
Source father
● Household
· direct · ~0.92
Mother
Cora Sweeney
b. ~1874
Source mother
● Household
· direct · ~0.92
Mother
Sarah Sweeney
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Sweeney
Daughter · 1930 · age 26 · b. ~1904 · New Jersey
★ You are viewing this record
Sibling
Helen Sweeney
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Sweeney
Sibling · 1930 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Sweeney
Sibling · 1930 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Sweeney
Sibling · 1930 · age 22
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 — Mercer, New Jersey
Open full size
1930 US Federal Census — Mercer, New Jersey
Page Contents
50 people indexed on this census page (ia:1930:newjerseycensus00reel1362:0100)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Frank Taylor | 48 | Head | Laborer | N. Carolina |
| 52 | Amanda Taylor | 45 | Wife | — | Alabama |
| 53 | Willie Taylor | 20 | Son | Laborer | Georgia |
| 54 | Martha Taylor | 20 | Daughter | Dish Washer | Georgia |
| 55 | Edward Taylor | 18 | Son | — | Georgia |
| 56 | Frank Taylor | 17 | Son | Laborer | Georgia |
| 57 | Robert Taylor | 16 | Son | — | Georgia |
| 58 | Flora Taylor | 14 | Daughter | — | Georgia |
| 59 | Sarah Taylor | 13 | Daughter | — | Georgia |
| 60 | Anna Taylor | 11 | Daughter | — | New Jersey |
| 61 | Essie Taylor | 9 | Daughter | — | New Jersey |
| 62 | Frances Taylor | 6 | Daughter | — | New Jersey |
| 63 | Joseph H. Reed | 47 | Head | Truck Driver | N. Carolina |
| 64 | Ella M. Reed | 47 | Wife | Laundress | N. Carolina |
| 65 | Julius Stinke | 43 | Head | Yes | Germany |
| 66 | Kathryn Stinke | 22 | Wife | Yes | Rumania |
| 67 | Kalman Toth | 47 | Head | Yes | Austria |
| 68 | Mary Toth | 37 | Wife | Yes | Austria |
| 69 | Mary Toth | 18 | Daughter | Stenographer | New Jersey |
| 70 | Frank Toth | 17 | Son | Laborer | New Jersey |
| 71 | Margaret Toth | 15 | Daughter | — | New Jersey |
| 72 | Theresa Toth | 12 | Daughter | — | New Jersey |
| 73 | John Ogonofsky | 40 | Head | Yes | Germany |
| 74 | Margaret Ogonofsky | 36 | Wife | — | New Jersey |
| 75 | Elaine Ogonofsky | 9 | Daughter | — | New Jersey |
| 76 | John Ogonofsky | 3 | Son | — | New Jersey |
| 77 | Hugh Longmuir | 36 | Head | Yes | Scotland |
| 78 | Isabella Longmuir | 33 | Wife | — | New Jersey |
| 79 | John Longmuir | 16 | Son | Apprentice | New Jersey |
| 80 | Francis T. Sidney | 73 | Head | Rigger | Pennsylvania |
| 81 | Anna Sidney | 60 | Wife | — | Maryland |
| 82 | Sarah Sweeney | 50 | Head | Yes | Irish Free State |
| 83 | John P. Sweeney | 29 | Son | Guard | New Jersey |
| 84 | Mary H. Sweeney THIS PERSON | 26 | Daughter | — | New Jersey |
| 85 | Edward T. Sweeney | 22 | Son | Laborer | New Jersey |
| 86 | Elizabeth Sweeney | 20 | Daughter | Rubberworker | New Jersey |
| 87 | Helen V. Sweeney | 18 | Daughter | Rubberworker | New Jersey |
| 88 | George H. Broadt | 30 | Head | Laborer | Pennsylvania |
| 89 | Alice H. Broadt | 26 | Wife | Yes | Poland |
| 90 | George H. Jr. Broadt | 6 | Son | — | New Jersey |
| 91 | John L. Broadt | 2 | Son | — | New Jersey |
| 92 | Henry Yeager | 52 | Head | Laborer | Pennsylvania |
| 93 | Dorothy Yeager | 47 | Wife | Yes | Germany |
| 94 | Howard Yeager | 20 | Son | Laborer | Pennsylvania |
| 95 | Marion Yeager | 14 | Daughter | — | Pennsylvania |
| 96 | Gorman J. Garrett | 68 | Head | Baker | New Jersey |
| 97 | Margaret M. Garrett | 64 | Wife | — | New Jersey |
| 98 | Primus J. Teller | 27 | Head | Fireman | New Jersey |
| 99 | Ruth E. Teller | 25 | Wife | — | Pennsylvania |
| 100 | John C. Odoud | 50 | Head | Foreman | New Jersey |
Pedigree Summary
Mary + 4 siblings
Gen 1 · 4 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)