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Robert Warren — 1940 US Census Record
Model Tree available1940 United States Federal Census · Lucas-County, Ohio
Our Model Tree links this Robert Warren across the 1920, 1930 and 1940 US Censuses in Lucas-County, Ohio (XGBoost, ~Confirmed), with identified parents Harry & Alice — first a son (b.~1915), then head of a 4-person household.
Age 25
b. ~1915
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lucas-County, Ohio |
| Surname | Warren |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | ADAMS TWP |
| 1935 Residence (County) | LUCAS |
| Additional Details | |
| Occupation | Molder's Helper |
| Industry | Tool Mfg. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1637 |
| Highest Grade | H-3 |
| 1935 Residence | Same House |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Molder'S Helper |
| Township / Ward | Adams Twp |
| 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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Ora Warren | Spouse | — | 46 | ~1894 |
| Robert Warren | Son | — | 25 | ~1915 |
| Norma Warren | Daughter | — | 9 | ~1931 |
| Harry Warren | Head | — | 52 | ~1888 |
Census Appearances
1920
Lucas, Ohio
Son, age 5
Lucas, Ohio · implied b. ~1915 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Warren |
| Given Name | Robert M |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Lucas, Ohio
Son, age 15
Lucas, Ohio · implied b. ~1915 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Warren |
| Given Name | Robert W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Ohio |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Lucas-County, Ohio
Son, age 25
Lucas-County, Ohio · implied b. ~1915 — 4 household members
| Surname | Warren |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | ADAMS TWP |
| 1935 Residence (County) | LUCAS |
| Occupation | Molder's Helper |
| Industry | Tool Mfg. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1637 |
| Highest Grade | H-3 |
| 1935 Residence | Same House |
| 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 Robert Warren across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Harry Warren (~0.92 confidence) and mother Alice Warren (~0.92 confidence) and mother Ora Warren (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Harry Warren
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Alice Warren
b. ~1886
Source mother
● Household
· direct · ~0.92
Mother
Ora Warren
b. ~1894
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Warren
Son · 1940 · age 25 · b. ~1915 · Ohio
★ You are viewing this record
Sibling
Norma Warren
Sibling · 1940 · age 9
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 — Lucas-County, Ohio
Open full size
1940 US Federal Census — Lucas-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03105-00168)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Richard Gryger | 10 | Nephew | — | Ohio |
| 2 | Stephen Gryger | 68 | Father in law | — | Germany |
| 3 | Laura Evison | 65 | Head | — | Ohio |
| 4 | Harry Evison | 33 | Son | Truck Driver | Michigan |
| 5 | Ameal Sacker | 77 | Head | — | Germany |
| 6 | Amelia Lyons | 66 | Sister-in-law | — | Ohio |
| 7 | Fred Smith | 76 | Lodger | — | Michigan |
| 8 | Harry Warren | 52 | Head | Mason-Contractor | Pennsylvania |
| 9 | Ora Warren | 46 | Wife | — | Ohio |
| 10 | Robert Warren THIS PERSON | 25 | Son | Molder'S Helper | Ohio |
| 11 | Norma Lee Warren | 9 | Daughter | — | Ohio |
| 12 | Joseph Knutson | 45 | Head | Switch Tender | Wisconsin |
| 13 | Melrose Knutson | 43 | Wife | Sewer | Wisconsin |
| 14 | Robert Knutson | 14 | Son | Printer | Ohio |
| 15 | Gerald Farbrother | 34 | Head | Pattern Maker | Canada-English |
| 16 | Stella Farbrother | 29 | Wife | — | Ohio |
| 17 | Joan Farbrother | 10 | Daughter | — | Ohio |
| 18 | Daniel Farbrother | 7 | Son | — | Ohio |
| 19 | Mildred Farbrother | 4 | Daughter | — | Ohio |
| 20 | Edwin Farbrother | 1 | Son | — | Ohio |
| 21 | George D. Sommerskill | 27 | Head | Painter | Ohio |
| 22 | Mary Sommerskill | 20 | Wife | — | Arkansas |
| 23 | Robert Sommerskill | 2 | Son | — | Ohio |
| 24 | Charles E. Jr. Jacobs | 25 | Head | Laborer | Ohio |
| 25 | Eileen Jacobs | 19 | Wife | — | Ohio |
| 26 | Corinne Jacobs | 2 | Daughter | — | Ohio |
| 27 | Ronald Farbrother | 31 | Head | Pattern Maker | Canada-English |
| 28 | Alberta Farbrother | 31 | Wife | — | Ohio |
| 29 | Fred Clark | 60 | Head | Laborer | Ohio |
| 30 | Nellie Clark | 45 | Wife | — | Ohio |
| 31 | Nellie Mae Clark | 10 | Daughter | — | Ohio |
| 32 | Howard W. Kreutzfeld | 30 | Head | Truck Washer | Ohio |
| 33 | Edith Kreutzfeld | 31 | Wife | — | Ohio |
| 34 | Gaylord E. Saner | 24 | Head | Waiter | Ohio |
| 35 | Ruth M. Saner | 21 | Wife | Waitress | Ohio |
| 36 | John Kay | 25 | Head | Machinist | New York |
| 37 | Anna Kay | 21 | Wife | — | Pennsylvania |
| 38 | Lee Traweek | 27 | Head | Machine Operator | Arizona |
| 39 | William D. Traweek | 27 | Partner | — | Arizona |
| 40 | Viola Weaver | 25 | Head | Waitress | Pennsylvania |
Pedigree Summary
Robert + 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 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)