RS
Robert Summers — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mesa-County, Colorado
Our Model Tree links this Robert Summers across the 1930 and 1940 US Censuses in Mesa-County, Colorado (XGBoost, ~Confirmed) — first a son (b.~1923), then head of a 7-person household.
Age 17
b. ~1923
Male
Son
Born: Idaho
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Mesa-County, Colorado |
| Surname | Summers |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Idaho |
| 1935 Residence (City) | Grand Junction City |
| 1935 Residence (County) | Mesa |
| Additional Details | |
| Occupation | Student |
| Class of Worker | O |
| Highest Grade | H 2 |
| 1935 Residence | Same house |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
| Occupation | Student |
| Township / Ward | Grand Junction City |
| Est. Birth Year | ~1923 |
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 |
|---|---|---|---|---|
| Betty Summers | Daughter | — | 16 | ~1924 |
| Donald Summers | Son | — | 10 | ~1930 |
| Ernest Summers | Head | — | 54 | ~1886 |
| Evelyn Summers | Daughter | — | 21 | ~1919 |
| Dorothy Summers | Daughter | — | 19 | ~1921 |
| Robert Summers | Son | — | 17 | ~1923 |
| Martha Summers | Spouse | — | 49 | ~1891 |
Census Appearances
1930
Mesa, Colorado
Son, age 7
Mesa, Colorado · implied b. ~1923 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Summers |
| Given Name | Robert D. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Idaho |
| Father's Birthplace | Switzerland |
| Mother's Birthplace | Iowa |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
1940
Mesa-County, Colorado
Son, age 17
Mesa-County, Colorado · implied b. ~1923 — 7 household members
| Surname | Summers |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Idaho |
| 1935 Residence (City) | Grand Junction City |
| 1935 Residence (County) | Mesa |
| Occupation | Student |
| Class of Worker | O |
| Highest Grade | H 2 |
| 1935 Residence | Same house |
| 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 Summers across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Summers
Son · 1940 · age 17 · b. ~1923 · Colorado
★ You are viewing this record
Sibling
Evelyn Summers
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Summers
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Summers
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Summers
Sibling · 1940 · age 10
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 — Mesa-County, Colorado
Open full size
1940 US Federal Census — Mesa-County, Colorado
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00470-00354)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William D Hicks | 0 | Son | — | Colorado |
| 2 | E. Genevieve Lang | 54 | Head | Housework | Colorado |
| 3 | Lucius Moore | 43 | Head | District Traffic Superintendent | Montana |
| 4 | Darryl F. Vail | 36 | Head | Assistant Supt. State Highway | Montana |
| 5 | Elizabeth E Vail | 34 | Wife | Housewife | Montana |
| 6 | Avril Pettenyill|Pettingill | 51 | Head | Farmer | Illinois |
| 7 | Bessie Pettenyill|Pettingill | 50 | Wife | Housewife | Illinois |
| 8 | Jessie Pettenyill|Pettingill | 18 | daughter | Student | Colorado |
| 9 | Norva Pettenyill|Pettingill | 15 | daughter | Student | Colorado |
| 10 | Mary A Pettenyill|Pettingill | 80 | Mother | Housework | Illinois |
| 11 | Roy W. Smith | 46 | Head | Civil Engineer | Nebraska |
| 12 | Arvella May Smith | 45 | Wife | Housewife | Utah |
| 13 | Arvilla Mae Smith | 17 | daughter | Student | Utah |
| 14 | Loas V. Smith | 14 | daughter | Student | Utah |
| 15 | William H Smith | 67 | Head | — | Missouri |
| 16 | Helen D. Smith | 29 | daughter | Housework | Colorado |
| 17 | Ernest Summers | 54 | Head | Pipe Filter | Switzerland |
| 18 | Martha B. Summers | 49 | Wife | Housewife | Minnesota |
| 19 | Evelyn Summers | 21 | daughter | — | Idaho |
| 20 | Dorothy Summers | 19 | daughter | Office Girl | Idaho |
| 21 | Robert Summers THIS PERSON | 17 | Son | Student | Idaho |
| 22 | Betty Summers | 16 | daughter | Student | Colorado |
| 23 | Donald Summers | 10 | Son | — | Colorado |
| 24 | William H. O'Brien | 49 | Head | Locomotive Fireman | Colorado |
| 25 | Bessie O'Brien | 44 | Wife | Housewife | Colorado |
| 26 | Kenneth A O'Brien | 12 | Son | — | Colorado |
| 27 | William H. Stevens | 62 | Head | Storeroom Clerk | Pennsylvania |
| 28 | Anna B. Stevens | 61 | Wife | Housewife | Pennsylvania |
| 29 | William A. Stevens | 21 | Son | Student | Kansas |
| 30 | Ross C. Harp | 44 | Head | Salesman | Iowa |
| 31 | Celia S. Harp | 45 | Wife | Dues Clerk | Nebraska |
| 32 | R. Donald Harp | 18 | Son | Salesman | Colorado |
| 33 | Orville R. Bishop | 34 | Head | Instrument Man | Colorado |
| 34 | Alice M Bishop | 31 | Wife | Housewife | Wyoming |
| 35 | Shirley Bishop | 9 | daughter | — | Colorado |
| 36 | Beverly Bishop | 7 | daughter | — | Colorado |
| 37 | Patricia Bishop | 4 | daughter | — | Colorado |
| 38 | Iva L. Dowd | 24 | Lodger | Photographer | Montana |
| 39 | Lucien C. Herr | 60 | Head | Conductor | Utah |
| 40 | Harriet C Herr | 45 | Wife | House Wife | Utah |
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)