JC
James Connolly — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this James Connolly across the 1920, 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a head (b.~1893), then head of a 3-person household.
Age 37
b. ~1893
Male
Head
Born: Ireland
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Connolly |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1904 |
| Age at First Marriage | 24 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Labor |
| Industry | Building Dept |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 25.00 |
| Radio Set | R |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Occupation | Labor |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1893 |
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.
3 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| James Connolly | Head | — | 37 | ~1893 |
| Annie Connolly | Other | — | 37 | ~1893 |
| Mary Connolly | Daughter | — | 8 | ~1922 |
Census Appearances
1920
Cook, Illinois
Head, age 29
Cook, Illinois · implied b. ~1891 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Connolly |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1908 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Laborer |
| Industry | building |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Year of Naturalization | 1920 |
| Birthplace (normalized) | ireland |
1930
Cook, Illinois
Head, age 37
Cook, Illinois · implied b. ~1893 — 3 household members
| Surname | Connolly |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1904 |
| Age at First Marriage | 24 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Labor |
| Industry | Building Dept |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 25.00 |
| Radio Set | R |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Cook-County, Illinois
Other, age 47
Cook-County, Illinois · implied b. ~1893 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Connelly |
| Given Name | James |
| Relationship to Head | Brother |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Single |
| Birthplace | Ireland |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Occupation | Clerk |
| Industry | Department Store |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1500 |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
James Connolly
Head · 1930 · age 37 · b. ~1893 · Illinois
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Cook, Illinois
Open full size
1930 US Federal Census — Cook, Illinois
Page Contents
50 people indexed on this census page (ia:1930:illinoiscensus00reel487:1065)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Anthony Pecoraro | 27 | Head | Labor | Italy |
| 2 | Jenny Pecoraro | 22 | Wife-H | — | Italy |
| 3 | Charles Pecoraro | 3 | Son | — | Illinois |
| 4 | James Connolly THIS PERSON | 37 | Head | Labor | Ireland |
| 5 | Annie Connolly | 37 | Wife-H | — | Ireland |
| 6 | Mary J Connolly | 8 | Daughter | — | Massachusetts |
| 7 | William Massoli | 40 | Head | Machinist | Michigan |
| 8 | Lucille Massoli | 33 | Wife-H | — | Illinois |
| 9 | Edna Massoli | 20 | Daughter | Operator | Michigan |
| 10 | William Jr Massoli | 19 | Son | Tester | Illinois |
| 11 | James Roes | 60 | Father-in-law | Retired | Indiana |
| 12 | Frank Dalton | 57 | Head | Cooper | Illinois |
| 13 | Georgina Dalton | 48 | Wife-H | — | Michigan |
| 14 | Gertrude Dalton | 14 | Daughter | — | Illinois |
| 15 | Frank Jr Dalton | 9 | Son | — | Illinois |
| 16 | William Linden | 47 | Head | Mechanic | Illinois |
| 17 | Anna Brill | 30 | Head | Laundress | Germany |
| 18 | Miliana Brill | 13 | Daughter | — | Germany |
| 19 | Charles Doyle | 5 | Son | — | Germany |
| 20 | Tony Spadafora | 40 | Head | Tailor | Italy |
| 21 | Anna Spadafora | 39 | Wife-H | Operator | Italy |
| 22 | Manalina Spadafora | 15 | Daughter | — | Illinois |
| 23 | Sadie Spadafora | 14 | Daughter | — | Illinois |
| 24 | Lucy Spadafora | 11 | Daughter | — | Illinois |
| 25 | Michel Spadafora | 7 | Son | — | Illinois |
| 26 | Max Shaffer | 37 | Head | Mechanic | Hungary |
| 27 | Margaret Shaffer | 34 | Wife-H | — | Hungary |
| 28 | Margaret Shaffer | 10 | Daughter | — | Hungary |
| 29 | Eva Shaffer | 9 | Daughter | — | Hungary |
| 30 | Annie Shaffer | 5 | Daughter | — | Illinois |
| 31 | John A Gahagan | 42 | Head | Cutter | Illinois |
| 32 | Irene Gahagan | 32 | Wife-H | — | Illinois |
| 33 | Evelyn A Gahagan | 12 | Daughter | — | Illinois |
| 34 | John J Gahagan | 10 | Son | — | Illinois |
| 35 | Patricia Gahagan | 1 | Daughter | — | Illinois |
| 36 | Peter Turec | 38 | Head | Cabinet Maker | Roumania |
| 37 | Elizabeth Turec | 28 | Wife-H | — | Belgium |
| 38 | Peter J Turec | 5 | Son | — | Illinois |
| 39 | George Turec | 4 | Son | — | Illinois |
| 40 | George Deniger | 46 | Head | Janitor | Austria |
| 41 | Katherine Deniger | 44 | Wife-H | — | Austria |
| 42 | Patrick A Kalah | 38 | Head | Salesman | Illinois |
| 43 | Margaret Kalah | 35 | Wife-H | — | Illinois |
| 44 | Margaret A Kalah | 10 | Daughter | — | Illinois |
| 45 | James A Kalah | 9 | Son | — | Illinois |
| 46 | Catherine A Kalah | 5 | Daughter | — | Illinois |
| 47 | Catherine A Curtin | 28 | Sister-in-law | Clerk | Illinois |
| 48 | Yvonne A Curtin | 24 | Sister-in-law | Clerk | Illinois |
| 49 | Thomas Curtin | 21 | Brother-in-law | Drug Clerk | Illinois |
| 50 | Charles Maier | 38 | Boarder | Clerk | Illinois |
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)