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James Connelly — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this James Connelly across the 1920 and 1930 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a son (b.~1915), then head of a 10-person household.
Age 15
b. ~1915
Male
Son
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Connelly |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Olympia Fields Village |
| Est. Birth Year | ~1915 |
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 |
|---|---|---|---|---|
| John Connelly | Son | — | 16 | ~1914 |
| Chas Connelly | Head | — | 46 | ~1884 |
| Richard Connelly | Son | — | 4 | ~1926 |
| Margaret Connelly | Other | — | 74 | ~1856 |
| Jane Connelly | Daughter | — | 14 | ~1916 |
| Charles Connelly | Son | — | 11 | ~1919 |
| James Connelly | Son | — | 15 | ~1915 |
| Margaret Connelly | Other | — | 35 | ~1895 |
| Mary Connelly | Daughter | — | 17 | ~1913 |
| Veronica Connelly | Spouse | — | 35 | ~1895 |
Census Appearances
1920
Cook, Illinois
Other, age 5
Cook, Illinois · implied b. ~1915 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Connelly |
| Given Name | James |
| Relationship to Head | Grandson |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 15
Cook, Illinois · implied b. ~1915 — 10 household members
| Surname | Connelly |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Connelly across 2 US Census years (1920 and 1930) in Cook, Illinois, using XGBoost record linkage.
Show:
This person
Anchor record
James Connelly
Son · 1930 · age 15 · b. ~1915 · Illinois
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Sibling
Charles Connelly
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jane Connelly
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Connelly
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Connelly
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Connelly
Sibling · 1930 · age 4
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 — Cook, Illinois
Open full size
1930 US Federal Census — Cook, Illinois
Page Contents
39 people indexed on this census page (ia:1930:illinoiscensus00reel415:0271)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Theodore Schmascheke | 45 | Head | Laborer | Illinois |
| 2 | Clara Schmascheke | 41 | Wife | — | Illinois |
| 3 | Walter Schmascheke | 15 | Son | — | Illinois |
| 4 | Walter Schmascheke | 3 | Son | — | Illinois |
| 5 | Henry Schmascheke | 79 | Father | — | Illinois |
| 6 | Chas H Connelly | 46 | Head | Real Estate Bro | Illinois |
| 7 | Veronica Connelly | 35 | Wife | — | Illinois |
| 8 | Mary Connelly | 17 | Daughter | — | Illinois |
| 9 | John Connelly | 16 | Son | — | Illinois |
| 10 | James Connelly THIS PERSON | 15 | Son | — | Illinois |
| 11 | Jane Connelly | 14 | Daughter | — | Illinois |
| 12 | Charles Connelly | 11 | Son | — | Illinois |
| 13 | Richard Connelly | 4 | Son | — | Illinois |
| 14 | Margaret Connelly | 74 | Mother | — | Ireland |
| 15 | Margaret Connelly | 35 | Sister | — | Illinois |
| 16 | Fred S Beck | 44 | Head | File Clerk | Illinois |
| 17 | Lillian Beck | 44 | Wife | Shipping Clerk | Oregon |
| 18 | Jack Beck | 11 | Son | — | Oregon |
| 19 | Ray Beck | 9 | Son | — | Oregon |
| 20 | Charles Beck | 6 | Son | — | Oregon |
| 21 | Alice Beck | 4 | Daughter | — | Illinois |
| 22 | Faye Collinger | 20 | Stepdaughter | Candy Maker | Oregon |
| 23 | Maurice G Slabe | 43 | Head | Accountant | Illinois |
| 24 | Julia Slabe | 37 | Wife | — | Sweden |
| 25 | Maurice Jr Slabe | 7 | Son | — | Illinois |
| 26 | Ed Mayer | 45 | Head | Farmer | Illinois |
| 27 | Charles Mayer | 35 | Brother | Farmer | Illinois |
| 28 | Theresa Klonowski | 36 | Head | Maintenance | Poland |
| 29 | Edmund Klonowski | 8 | Son | — | Illinois |
| 30 | Cynthia Klonowski | 6 | Daughter | — | Illinois |
| 31 | Leroy Klonowski | 5 | Son | — | Illinois |
| 32 | Gerald Klonowski | 3 | Son | — | Illinois |
| 33 | Victor Klonowski | 2 | Son | — | Illinois |
| 34 | Klonowski | 0 | Daughter | — | Illinois |
| 35 | L Marcellis | 32 | Roomer | Laborer | Wisconsin |
| 36 | Robert Jaschtke | 25 | Head | Farmer | Germany |
| 37 | O. S. Loomis | 43 | Head | Farmer | Wisconsin |
| 38 | Marie Loomis | 40 | Wife | — | Ohio |
| 39 | Betty Loomis | 5 | Daughter | — | Indiana |
Related Census Records
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)