RH
Robert Hammond — 1940 US Census Record
Model Tree available1940 United States Federal Census · Kent-County, Delaware
Our Model Tree links this Robert Hammond across the 1920, 1930 and 1940 US Censuses in Kent-County, Delaware (XGBoost, ~Confirmed), with identified parents John & Mary — first a head (b.~1900), then head of a 5-person household.
Age 40
b. ~1900
Male
Head
Born: Delaware
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Kent-County, Delaware |
| Surname | Hammond |
| Given Name | Robert W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Delaware |
| 1935 Residence (City) | Representative District 10 |
| 1935 Residence (County) | Kent |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 45 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
| Occupation | Farmer |
| Township / Ward | Representative District 10 |
| Est. Birth Year | ~1900 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Robert Hammond | Son | — | 5 | ~1935 |
| Sarah Hammond | Daughter | — | 10 | ~1930 |
| Mary Hammond | Daughter | — | 2 | ~1938 |
| Robert Hammond | Head | — | 40 | ~1900 |
| Pearl Hammond | Spouse | — | 40 | ~1900 |
Census Appearances
1920
Kent, Delaware
Son, age 20
Kent, Delaware · implied b. ~1900 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hammond |
| Given Name | Robert M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Delaware |
| Father's Birthplace | Delaware |
| Mother's Birthplace | Delaware |
| Occupation | Farmer |
| Industry | Truck Farm |
| Class of Worker | Emp |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
1930
Kent, Delaware
Head, age 30
Kent, Delaware · implied b. ~1900 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hammond |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Delaware |
| Age at First Marriage | 28 |
| Father's Birthplace | Delaware |
| Mother's Birthplace | Delaware |
| Occupation | Farmer |
| Industry | Truck |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | 78 |
| Veteran | O |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
1940
Kent-County, Delaware
Head, age 40
Kent-County, Delaware · implied b. ~1900 — 5 household members
| Surname | Hammond |
| Given Name | Robert W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Delaware |
| 1935 Residence (City) | Representative District 10 |
| 1935 Residence (County) | Kent |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 45 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
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 John Hammond (~0.92 confidence) and mother Mary Hammond (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Hammond
b. ~1868
Source father
● Household
· direct · ~0.92
Mother
Mary Hammond
b. ~1869
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Hammond
Head · 1940 · age 40 · b. ~1900 · Delaware
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Kent-County, Delaware
Open full size
1940 US Federal Census — Kent-County, Delaware
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-00544-01029)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John H. J. Armour | 67 | Head | Farmer | Delaware |
| 2 | Mary E. Armour | 59 | Wife | — | Delaware |
| 3 | John H. Jr. Armour | 20 | Son | — | Delaware |
| 4 | John P. Krone | 67 | Head | Pension | Pennsylvania |
| 5 | Rosa Ann Krone | 73 | Wife | — | Pennsylvania |
| 6 | Minnie Christman | 67 | Head | — | Denmark |
| 7 | Christine Hill | 25 | Daughter | Canvass Factory | Delaware |
| 8 | Helen Hill | 5 | Granddaughter | — | Pennsylvania |
| 9 | Viral P. Johnson | 56 | Head | Farmer | Delaware |
| 10 | Virginia Johnson | 52 | Wife | — | Delaware |
| 11 | Jeanett Johnson | 21 | Daughter | Canvass Factory | Delaware |
| 12 | Clarence Davidson | 22 | Hired Hand | Laborer | Delaware |
| 13 | Clarence Tucker | 35 | Head | Farmer | Delaware |
| 14 | Edna Tucker | 31 | Wife | — | Delaware |
| 15 | Bernice Tucker | 12 | Daughter | — | Delaware |
| 16 | Ralph Tucker | 9 | Son | — | Delaware |
| 17 | Thelma Tucker | 2 | Daughter | — | Delaware |
| 18 | Alfred W. Collins | 50 | Head | Farmer | Delaware |
| 19 | Mary L. Collins | 48 | Wife | — | Delaware |
| 20 | Ureline Collins | 24 | Son | Laborer | Delaware |
| 21 | Elmer Collins | 23 | Son | Nursery | Delaware |
| 22 | James Collins | 19 | Son | Nursery | Pennsylvania |
| 23 | Margaret Collins | 16 | Daughter | — | Delaware |
| 24 | Robert W. Hammond THIS PERSON | 40 | Head | Farmer | Delaware |
| 25 | Pearl Hammond | 40 | Wife | — | Delaware |
| 26 | Sarah Hammond | 10 | Daughter | — | Delaware |
| 27 | Robert W. Jr. Hammond | 5 | Son | — | Delaware |
| 28 | Mary Alice Hammond | 2 | Daughter | — | Delaware |
| 29 | Seba Grunstra | 52 | Head | Laborer | New Jersey |
| 30 | Cathryn Grunstra | 39 | Wife | — | Netherlands |
| 31 | Bernard Grunstra | 12 | Son | — | New York |
| 32 | James Grunstra | 10 | Son | — | New York |
| 33 | Thomas Grunstra | 7 | Son | — | New York |
| 34 | Maynard Grunstra | 2 | Son | — | New York |
| 35 | Geo. B. Simpson | 64 | Head | Farmer | Delaware |
| 36 | Isabel Simpson | 23 | Daughter | — | Delaware |
| 37 | Sarah Simpson | 20 | Daughter | — | Delaware |
| 38 | Edgar C. Simpson | 47 | Hired Hand | Laborer | Delaware |
Pedigree Summary
Robert
Gen 1 · 2 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)