JC
James Connolly — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Kings, New York
Our Model Tree links this James Connolly across the 1930 and 1940 US Censuses in Kings, New York (XGBoost, ~Confirmed) — first a son (b.~1913), then head of a 10-person household.
Age 17
b. ~1913
Male
Son
Born: New York
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Kings, New York |
| Surname | Connolly |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Township / Ward | Brooklyn |
| Est. Birth Year | ~1913 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| Veronica Connolly | Daughter | — | 4 | ~1926 |
| James Connolly | Son | — | 17 | ~1913 |
| John Connolly | Head | — | 40 | ~1890 |
| Catherine Connolly | Daughter | — | 5 | ~1925 |
| Thomas Connolly | Son | — | 19 | ~1911 |
| Alice Connolly | Daughter | — | 10 | ~1920 |
| Francis Connolly | Son | — | 7 | ~1923 |
| Vincent Connolly | Son | — | 11 | ~1919 |
| Rose Connolly | Daughter | — | 8 | ~1922 |
| Alice Connolly | Spouse | — | 40 | ~1890 |
Census Appearances
1930
Kings, New …
Son, age 17
Kings, New York · implied b. ~1913 — 10 household members
| Surname | Connolly |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Kings-County, New …
Head, age 25
Kings-County, New York · implied b. ~1915 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Connelly |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | Brooklyn |
| 1935 Residence (County) | Kings |
| Occupation | Maintenance |
| Industry | Office Bldg |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1300 |
| Highest Grade | Hs 4 |
| 1935 Residence | New York |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 James Connolly across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Connolly
Son · 1930 · age 17 · b. ~1913 · New York
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Sibling
Francis Connolly
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Connolly
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rose Connolly
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Veronica Connolly
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Connolly
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Vincent Connolly
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Connolly
Sibling · 1930 · age 5
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 — Kings, New York
Open full size
1930 US Federal Census — Kings, New York
Page Contents
50 people indexed on this census page (ia:1930:newyorkcensus00reel1520:0781)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Theresa Butch | 4 | — | — | New York |
| 2 | John Connolly | 40 | Head | Roofer | New York |
| 3 | Alice Connolly | 40 | Wife | — | Ireland |
| 4 | Thomas Connolly | 19 | Son | — | New York |
| 5 | James Connolly THIS PERSON | 17 | Son | — | New York |
| 6 | Vincent Connolly | 11 | Son | — | New York |
| 7 | Alice Connolly | 10 | Daughter | — | New York |
| 8 | Rose Connolly | 8 | Daughter | — | New York |
| 9 | Francis Connolly | 7 | Son | — | New York |
| 10 | Catherine Connolly | 5 | Daughter | — | New York |
| 11 | Veronica Connolly | 4 | Daughter | — | New York |
| 12 | Mary Conner | 40 | Head | — | Scotland |
| 13 | Luke Conner | 19 | Daughter | Operator | Scotland |
| 14 | Margaret Conner | 17 | Daughter | Frame Maker | Scotland |
| 15 | Patrick Conner | 14 | Son | Bricklayer | Scotland |
| 16 | Jean Bodine | 20 | Boarder | Assistant | Scotland |
| 17 | James Cunningham | 27 | — | Laborer | Scotland |
| 18 | Bella Cunningham | 23 | — | Kitchen Help | Scotland |
| 19 | Katherine Flynn | 53 | Head | — | Northern Ireland |
| 20 | Matthew Flynn | 29 | Son | Chauffeur | New York |
| 21 | Anna Flynn | 26 | Daughter | Waitress | New York |
| 22 | John Flynn | 24 | Son | Electrician | New York |
| 23 | William Murphy | 51 | Head | Laborer | New York |
| 24 | Mary Murphy | 50 | Wife | — | New York |
| 25 | Frank Murphy | 21 | Son | Clerk | New York |
| 26 | Alice Murphy | 20 | Daughter | Operator | New York |
| 27 | Ruth Murphy | 18 | Daughter | Operator | New York |
| 28 | Agnes Murphy | 16 | Daughter | — | New York |
| 29 | William Tacina | 51 | Head | Watchman | Germany |
| 30 | Elizabeth Tacina | 41 | Wife | — | New York |
| 31 | William Tacina | 18 | Son | Factory | New Jersey |
| 32 | Nathaniel Tacina | 17 | Son | Factory | New Jersey |
| 33 | Harold Tacina | 15 | Son | — | New York |
| 34 | Veronica Tacina | 12 | Daughter | — | New York |
| 35 | William Tucker | 36 | Head | Insurance | New York |
| 36 | Anna Tucker | 35 | Wife | — | New York |
| 37 | Margaret Tucker | 7 | Daughter | — | New York |
| 38 | Joan Tucker | 5 | Daughter | — | New York |
| 39 | William Nolan | 36 | Head | Welder | England |
| 40 | Catherine Nolan | 33 | Wife | — | Scotland |
| 41 | John Nolan | 10 | Son | — | New York |
| 42 | William Nolan | 8 | Son | — | New York |
| 43 | James Nolan | 6 | Son | — | New York |
| 44 | Charlotte Thompson | 26 | Sister in L | Factory | Scotland |
| 45 | Michael Kennedy | 55 | Head | Laborer | Ireland |
| 46 | Anna Kennedy | 49 | Wife | — | Ireland |
| 47 | Joseph Kennedy | 21 | Son | Radio | Ireland |
| 48 | Mary Kennedy | 13 | Daughter | — | New York |
| 49 | Anna Kennedy | 11 | Daughter | — | New York |
| 50 | Michael Traska | 18 | Boarder | Radio | Austria |
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)