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Edward Brennan — 1930 US Census Record
Model Tree available1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Edward Brennan across the 1920, 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed), with identified parents James & Margaret — first a son (b.~1885), then head of a 3-person household.
Age 45
b. ~1885
Male
Son
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Brennan |
| Given Name | Edward |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | none |
| Industry | Auto-Business |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1885 |
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 Edward | Age | Birth yr |
|---|---|---|---|---|
| Mary Brennan | Daughter | — | 35 | ~1895 |
| Edward Brennan | Son | — | 45 | ~1885 |
| Margaret Brennan | Head | — | 79 | ~1851 |
Census Appearances
1920
Cook, Illinois
Son, age 35
Cook, Illinois · implied b. ~1885 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brennan |
| Given Name | Edward |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Automobile |
| Industry | Repair Shop |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 45
Cook, Illinois · implied b. ~1885 — 3 household members
| Surname | Brennan |
| Given Name | Edward |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Industry | Auto-Business |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Head, age 56
Cook-County, Illinois · implied b. ~1884 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brennen |
| Given Name | Edward V. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | Telegraph Operator |
| Industry | Broker Office |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2403 |
| Highest Grade | 6 |
| 1935 Residence | Same place |
| 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 Edward Brennan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Brennan (~0.92 confidence) and mother Margaret Brennan (~0.92 confidence) and mother Margaret Brennan (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Brennan
b. ~1852
Source father
● Household
· direct · ~0.92
Mother
Margaret Brennan
b. ~1851
Source mother
● Household
· direct · ~0.92
Mother
Margaret Brennan
b. ~1854
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Edward Brennan
Son · 1930 · age 45 · b. ~1885 · Illinois
★ You are viewing this record
Sibling
Mary Brennan
Sibling · 1930 · age 35
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
50 people indexed on this census page (ia:1930:illinoiscensus00reel485:0829)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Margaret Brennan | 79 | Head | None | South Ireland |
| 2 | Edward Brennan THIS PERSON | 45 | Son | None | Illinois |
| 3 | Mary Brennan | 35 | Daughter | None | Kansas |
| 4 | John J. Brennan | 46 | Head | Accountant | Kansas |
| 5 | Rose Brennan | 39 | Wife | None | Illinois |
| 6 | William B. Brennan | 14 | Son | None | Illinois |
| 7 | Margaret Brennan | 12 | Daughter | None | Illinois |
| 8 | Hugh J. Brennan | 10 | Son | None | Illinois |
| 9 | Edward Brennan | 8 | Son | None | Illinois |
| 10 | Colette Brennan | 6 | Daughter | None | Illinois |
| 11 | Frank J. Bertalan | 51 | Head | None | Roumania |
| 12 | Ida Bertalan | 48 | Wife | None | Roumania |
| 13 | Frank Bertalan | 15 | Son | None | Illinois |
| 14 | Vilma Bertalan | 10 | Daughter | None | Illinois |
| 15 | Annie Bertalan | 7 | Daughter | None | Illinois |
| 16 | Joseph Develin | 39 | Roomer | Boiler Maker | England |
| 17 | Clyde Fitch | 23 | Roomer | Driver Of Truck | Illinois |
| 18 | Rudolph Lady | 20 | Roomer | Clerk | Missouri |
| 19 | Johnson Strafta | 45 | Roomer | Sign Painter | Czecho-Slovakia |
| 20 | Herman Mendle | 66 | Head | Chemist | Germany |
| 21 | Martha Mendle | 65 | Wife | None | Germany |
| 22 | Frieda Appelbach | 36 | Sister-in-law | None | Cincinnati |
| 23 | Mary Burke | 75 | Head | None | New York |
| 24 | Anna M. Burke | 65 | Sister | None | Illinois |
| 25 | Charles W. Miller | 28 | Head | Forester | Pennsylvania |
| 26 | Margaret Miller | 27 | Wife | None | Pennsylvania |
| 27 | Emily Jane Miller | 5 | Daughter | None | Pennsylvania |
| 28 | Margaret H. Miller | 4 | Daughter | None | Pennsylvania |
| 29 | John W. Miller | 1 | Son | None | Illinois |
| 30 | Minnie Gibbons | 66 | Head | None | Illinois |
| 31 | Harry D. Gibbons | 40 | Son | Lawyer | Illinois |
| 32 | Walter L. Gibbons | 36 | Son | Salesman | Illinois |
| 33 | Joseph Idelzner | 46 | Head | Motor Coach | Roumania |
| 34 | Christine Idelzner | 42 | Wife | None | Uka Slovak |
| 35 | Joseph Idelzner | 21 | Son | Motor Coach | West Virginia |
| 36 | Helen Idelzner | 16 | Daughter | None | Illinois |
| 37 | Christine Idelzner | 11 | Daughter | None | Illinois |
| 38 | Maurice Murphy | 52 | Head | Engineer Marine | Ireland |
| 39 | Mary Murphy | 52 | Wife | None | Pennsylvania |
| 40 | John Murphy | 26 | Son | Chemical Trader | Pennsylvania |
| 41 | L. Thomas Jeffries | 56 | Head | None | Illinois |
| 42 | Mamie Jeffries | 46 | Wife | None | Missouri |
| 43 | Henry Jacoby | 58 | Head | R.R. Leverman | Wisconsin |
| 44 | Agnes M. Jacoby | 46 | Wife | — | Wisconsin |
| 45 | George Lewis | 22 | Son | Auditor | Wisconsin |
| 46 | Kathryn Lewis | 21 | Daughter | — | Wisconsin |
| 47 | Mary Caulfield | 61 | Head | None | Ireland |
| 48 | Mary A. Caulfield | 30 | Daughter | Book Keeper | Ireland |
| 49 | John J. Caulfield | 28 | Son | Internal Hospital | Ireland |
| 50 | George Harass | 33 | Roomer | Clerk Office | Czecho-Slovakia |
Pedigree Summary
Edward + 1 sibling
Gen 1 · 3 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)