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Edward Brennan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Hamilton-County, Ohio
Our Model Tree links this Edward Brennan across the 1920, 1930 and 1940 US Censuses in Hamilton-County, Ohio (XGBoost, ~Confirmed), with identified parents Patrick & Patrick — first a son (b.~1896), then head of a 3-person household.
Age 44
b. ~1896
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hamilton-County, Ohio |
| Surname | Brennan |
| Given Name | Edward J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Cincinnati City |
| Additional Details | |
| Occupation | City Fireman |
| Industry | City Fire Dept. |
| Class of Worker | GW |
| Hours Worked | 84 |
| Income (1939) | 1860 |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | City Fireman |
| Township / Ward | Cincinnati City |
| Est. Birth Year | ~1896 |
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 1940 census.
| Name | Relation to head | Relative to Edward | Age | Birth yr |
|---|---|---|---|---|
| Mary Brennan | Head | — | 75 | ~1865 |
| Edward Brennan | Son | — | 44 | ~1896 |
| Edna Brennan | Son | — | 33 | ~1907 |
Census Appearances
1920
Hamilton, Ohio
Son, age 21
Hamilton, Ohio · implied b. ~1899 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brennan |
| Given Name | Edward |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Fireman |
| Industry | City |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Hamilton, Ohio
Son, age 31
Hamilton, Ohio · implied b. ~1899 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brennan |
| Given Name | Edward |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ireland Free State |
| Mother's Birthplace | Ireland Free State |
| Occupation | Fireman |
| Industry | City |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Hamilton-County, Ohio
Son, age 44
Hamilton-County, Ohio · implied b. ~1896 — 3 household members
| Surname | Brennan |
| Given Name | Edward J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Cincinnati City |
| Occupation | City Fireman |
| Industry | City Fire Dept. |
| Class of Worker | GW |
| Hours Worked | 84 |
| Income (1939) | 1860 |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Patrick Brennan (~0.92 confidence) and father Patrick Brennan (~0.92 confidence) and mother Mary Brennan (~0.92 confidence) and mother Mary Brennan (~0.92 confidence) and mother Mary Brennan (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Patrick Brennan
b. ~1860
Source father
● Household
· direct · ~0.92
Father
Patrick Brennan
b. ~1867
Source father
● Household
· direct · ~0.92
Mother
Mary Brennan
b. ~1865
Source mother
● Household
· direct · ~0.92
Mother
Mary Brennan
b. ~1865
Source mother
● Household
· direct · ~0.92
Mother
Mary Brennan
b. ~1871
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Edward Brennan
Son · 1940 · age 44 · b. ~1896 · Ohio
★ You are viewing this record
Sibling
Edna Brennan
Sibling · 1940 · age 33
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
1940 US Federal Census — Hamilton-County, Ohio
Open full size
1940 US Federal Census — Hamilton-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03188-00750)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Leland J. Harrell | 26 | Head | Cutter | Ohio |
| 2 | Kathryn Harrell | 23 | Wife | — | Cincinnati |
| 3 | Kathryn Harrell | 1 | Daughter | — | Cincinnati |
| 4 | Lewis W. Brown | 34 | Head | Salesmanager | Stanton, Ky. |
| 5 | Virginia Brown | 33 | Wife | — | Covington, Ky. |
| 6 | James Brown | 10 | Son | — | Zanesville, O. |
| 7 | Patricia Brown | 6 | Daughter | — | Columbus, O. |
| 8 | Florence E. Crossen | 58 | Mother-in-law | — | Richmond, Ky. |
| 9 | Royal Winter | 37 | Head | Saleswoman | Ohio |
| 10 | Opal E. Winter | 31 | Wife | — | Phila., Pa. |
| 11 | Lloyd Winter | 8 | Son | — | Cincinnati |
| 12 | Chas. H. Daniels | 47 | Head | Salesman | Mansfield, O. |
| 13 | Maude Daniels | 45 | Wife | — | Ohio |
| 14 | Jeanette Daniels | 21 | Daughter | — | Ohio |
| 15 | Chas. H. Jr. Daniels | 16 | Son | — | Ohio |
| 16 | Geo. W. Cheney | 28 | Step-son | Sales Clerk | Ohio |
| 17 | Charles Zemcikay | 49 | Head | Delicatessen | France |
| 18 | Alice Zemcikay | 47 | Wife | Saleswoman | Pennsylvania |
| 19 | Amelia Patterson | 64 | Head | Seamstress | Ohio |
| 20 | Watson Taylor | 33 | Head | Janitor | Ohio |
| 21 | Evelyn Taylor | 33 | Wife | — | Michigan |
| 22 | Delores Davis | 10 | Sister-in-law | — | Michigan |
| 23 | Ernest Thomas | 32 | Head | Clothing | Tennessee |
| 24 | Mary Ann Thomas | 25 | Wife | — | Ohio |
| 25 | Richard L. Thomas | 3 | Son | — | Ohio |
| 26 | Walter D. Schmidt | 66 | Head | Planer Mechanic | Indiana |
| 27 | Mary F. Schmidt | 61 | Wife | — | Ohio |
| 28 | Gladys Ratcliff | 45 | Head | Practical Nurse | Ohio |
| 29 | Clarence Bethel | 45 | Head | Sales Clerk | Ohio |
| 30 | Luella Bethel | 40 | Wife | — | Ohio |
| 31 | Mary E. Brennan | 75 | Head | — | New York |
| 32 | Edward J. Brennan THIS PERSON | 44 | Son | City Fireman | Ohio |
| 33 | Edna L. Brennan | 33 | Son | Secretary | Ohio |
| 34 | Luella Marie Frere | 44 | Head | Housework | Ohio |
| 35 | John J. Churchill | 45 | Head | Auto Mech. | Ohio |
| 36 | Eunice Churchill | 52 | Wife | — | Ohio |
| 37 | John E. Sullivan | 46 | Head | Letter Carrier | Ohio |
| 38 | Hazel Sullivan | 46 | Wife | — | Ohio |
| 39 | Stanley Sullivan | 20 | Son | Salesman | Ohio |
| 40 | Charles Sullivan | 18 | Son | — | Ohio |
Pedigree Summary
Edward + 1 sibling
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)