RH
Robert Hammond — 1940 US Census Record
Model Tree available1940 United States Federal Census · Wayne-County, Michigan
Our Model Tree links this Robert Hammond across the 1920, 1930 and 1940 US Censuses in Wayne-County, Michigan (XGBoost, ~Confirmed), with identified parents Norman & Norman — first a son (b.~1917), then head of a 4-person household.
Age 23
b. ~1917
Male
Son
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Wayne-County, Michigan |
| Surname | Hammond |
| Given Name | Robert Ab |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | DETROIT CITY |
| 1935 Residence (County) | WAYNE |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Same House |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Detroit City |
| Est. Birth Year | ~1917 |
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 |
|---|---|---|---|---|
| Norman Hammond | Head | — | 54 | ~1886 |
| Robert Hammond | Son | — | 23 | ~1917 |
| Persons Following | Other | — | — | |
| Norman Hammond | Son | — | 20 | ~1920 |
Census Appearances
1920
Wayne, Michigan
Son, age 3
Wayne, Michigan · implied b. ~1917 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hammond |
| Given Name | Robt |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1930
Wayne, Michigan
Son, age 13
Wayne, Michigan · implied b. ~1917 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hammond |
| Given Name | Robert J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Wayne-County, Michigan
Son, age 23
Wayne-County, Michigan · implied b. ~1917 — 4 household members
| Surname | Hammond |
| Given Name | Robert Ab |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | DETROIT CITY |
| 1935 Residence (County) | WAYNE |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Same House |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 Hammond across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Norman Hammond (~0.92 confidence) and father Norman Hammond (~0.92 confidence) and mother Grace Hammond (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Norman Hammond
b. ~1886
Source father
● Household
· direct · ~0.92
Father
Norman Hammond
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Grace Hammond
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Hammond
Son · 1940 · age 23 · b. ~1917 · Michigan
★ You are viewing this record
Sibling
Norman Hammond
Sibling · 1940 · age 20
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 — Wayne-County, Michigan
Open full size
1940 US Federal Census — Wayne-County, Michigan
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01890-00257)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Gertude Greening | 39 | Wife | — | Michigan |
| 42 | Mary Greening | 12 | Daughter | — | Michigan |
| 43 | William Greening | 9 | Son | — | Michigan |
| 44 | Ann Greening | 6 | Daughter | — | Michigan |
| 45 | Robert Greening | 4 | Son | — | Michigan |
| 46 | Frederick E. Caston | 58 | Head | Civil Engineer | Illinois |
| 47 | Laura Caston | 54 | Wife | Teacher | Canada |
| 48 | Frederick Caston | 25 | Son | Mechanical Engineer | Washington |
| 49 | Robert V. Caston | 22 | Son | Tin Smith | Canada |
| 50 | William Mcrae | 87 | In Law | — | Canada |
| 51 | Persons Following | None | Live | — | — |
| 52 | Emmett Mcdonough | 35 | Head | Gasolene Station Oper. | Michigan |
| 53 | Mary Mcdonough | 33 | Wife | Retailer | Michigan |
| 54 | James Salley | 63 | Father In Law | — | Michigan |
| 55 | Anna Salley | 51 | Mother In Law | — | Michigan |
| 56 | Agnes Salley | 26 | Sister In Law | Sales Clerk | Michigan |
| 57 | Raymond Salley | 22 | Brother In Law | Mill-Wright | Michigan |
| 58 | Dorothy Salley | 18 | Sister In Law | Blue-Print Mach. Oper. | Michigan |
| 59 | Persons Following | None | Live | — | — |
| 60 | Ernest M. Bigler | 32 | Head | Commercial Artist | Ohio |
| 61 | Adele Bigler | 47 | Wife | — | Michigan |
| 62 | Gordon Burkholder | 44 | Head | Barber | Canada |
| 63 | Ora Burkholder | 43 | Wife | Librarian | Canada |
| 64 | Donald Burkholder | 23 | Son | Mill Wright | Canada |
| 65 | Robert Wilson | 42 | Head | Laundry Truck Driver | Michigan |
| 66 | Ethel Wilson | 40 | Wife | Secretary | Canada |
| 67 | David Wilson | 4 | Son | — | Michigan |
| 68 | Persons Following | None | Live | — | — |
| 69 | Fred C. Reyhl | 52 | Head | Assembler | Michigan |
| 70 | Ida E. Reyhl | 56 | Wife | — | Michigan |
| 71 | Martinson | None | — | — | — |
| 72 | Persons Following | None | Live | — | — |
| 73 | Norman H. Hammond | 54 | Head | Building Manager | Michigan |
| 74 | Robert Ab Hammond THIS PERSON | 23 | Son | — | Michigan |
| 75 | Norman Hammond | 20 | Son | General Office Work | Michigan |
| 76 | Persons Following | None | Live | — | — |
| 77 | Walter O. Davey | 36 | Head | Salesman | Michigan |
| 78 | Sally Davey | 35 | Wife | — | Michigan |
| 79 | Persons Following | None | Live | — | — |
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)