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Robert Hammond — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Ada-County, Idaho
Our Model Tree links this Robert Hammond across the 1930 and 1940 US Censuses in Ada-County, Idaho (XGBoost, ~Confirmed) — first a son (b.~1927), then head of a 7-person household.
Age 13
b. ~1927
Male
Son
Born: Idaho
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Ada-County, Idaho |
| Surname | Hammond |
| Given Name | Robert |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Idaho |
| 1935 Residence (City) | Boise |
| 1935 Residence (County) | Ada |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
| Township / Ward | Boise |
| Est. Birth Year | ~1927 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Ross Hammond | Head | — | 46 | ~1894 |
| Richard Hammond | Son | — | 2 | ~1938 |
| Robert Hammond | Son | — | 13 | ~1927 |
| Sherman Hammond | Son | — | 15 | ~1925 |
| Kenneth Hammond | Son | — | 10 | ~1930 |
| George Hammond | Son | — | 11 | ~1929 |
| Gladys Hammond | Spouse | — | 32 | ~1908 |
Census Appearances
1930
Ada, Idaho
Son, age 3
Ada, Idaho · implied b. ~1927 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hammond |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Idaho |
| Father's Birthplace | Washington |
| Mother's Birthplace | Missouri |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
1940
Ada-County, Idaho
Son, age 13
Ada-County, Idaho · implied b. ~1927 — 7 household members
| Surname | Hammond |
| Given Name | Robert |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Idaho |
| 1935 Residence (City) | Boise |
| 1935 Residence (County) | Ada |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
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 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Hammond
Son · 1940 · age 13 · b. ~1927 · Idaho
★ You are viewing this record
Sibling
George Hammond
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kenneth Hammond
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Hammond
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sherman Hammond
Sibling · 1940 · age 15
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 — Ada-County, Idaho
Open full size
1940 US Federal Census — Ada-County, Idaho
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00735-00603)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ross F. Hammond | 46 | Head | Carpenter | Washington |
| 42 | Gladys Hammond | 32 | Wife | — | Missouri |
| 43 | Sherman Hammond | 15 | son | — | Idaho |
| 44 | Robert Hammond THIS PERSON | 13 | son | — | Idaho |
| 45 | George Hammond | 11 | son | — | Idaho |
| 46 | Kenneth Hammond | 10 | son | — | Idaho |
| 47 | Richard W. Hammond | 2 | son | — | Idaho |
| 48 | Walker Tobias | 53 | Head | Janitor | Arkansas |
| 49 | Johnie M. Tobias | 26 | Wife | — | Alabama |
| 50 | Willa B. Tobias | 4 | daughter | — | Alabama |
| 51 | Joe D. Tobias | 2 | daughter | — | Idaho |
| 52 | Jesse Berry | 52 | Head | Laborer | Kansas |
| 53 | Harriet Berry | 50 | Wife | — | Oregon |
| 54 | Eileen Berry | 13 | daughter | — | Idaho |
| 55 | Isaac Paris | 75 | Lodger | — | Tennessee |
| 56 | Byron Hall | 66 | Head | Laborer | Minnesota |
| 57 | Mary E. Hall | 58 | Wife | — | Iowa |
| 58 | Morris Hall | 35 | son | — | Minnesota |
| 59 | Kenneth Hall | 20 | son | — | Idaho |
| 60 | George Zurcher | 66 | Head | Craftsman | Switzerland |
| 61 | Grace Zurcher | 60 | Wife | — | Nebraska |
| 62 | Gertrude Zurcher | 22 | daughter | Typist | Idaho |
| 63 | Howard Hardman | 31 | Head | Salesman | Kansas |
| 64 | Lois Hardman | 26 | Wife | — | Iowa |
| 65 | William H. Hardman | 12 | son | — | Idaho |
| 66 | Carl Seppason | 28 | Head | Clerk | Utah |
| 67 | Kleo Seppason | 21 | Wife | — | Idaho |
| 68 | Belle Euler | 77 | Head | — | California |
| 69 | Olive A. Euler | 54 | daughter | Typist | Idaho |
| 70 | Frank Mc Donald | 24 | Head | Dept. Repair | Nebraska |
| 71 | Marie Mc Donald | 23 | Wife | — | Oregon |
| 72 | Mary E. Mc Donald | 5 | daughter | — | Idaho |
| 73 | Arnold D. Wolfe | 24 | Head | Truck Driver | Idaho |
| 74 | June O. Wolfe | 23 | Wife | Cashier | Utah |
| 75 | Arnold D. Wolfe | 3 | son | — | Idaho |
| 76 | Woodrow E. Murray | 24 | Head | Laborer | Montana |
| 77 | Eleanor Murray | 21 | Wife | — | Montana |
| 78 | Thomas Murray | 1 | son | — | Idaho |
| 79 | Belle Heath | 72 | Head | — | Iowa |
| 80 | Rayner Heath | 41 | son | — | Iowa |
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)