RL
Robert Long — 1940 US Census Record
Model Tree available1940 United States Federal Census · Mesa-County, Colorado
Our Model Tree links this Robert Long across the 1920, 1930 and 1940 US Censuses in Mesa-County, Colorado (XGBoost, ~Confirmed), with identified parents Alvin & Eugene — first a son (b.~1919), then head of a 6-person household.
Age 21
b. ~1919
Male
Son
Born: Colorado
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Mesa-County, Colorado |
| Surname | Long |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | Grand Junction City |
| 1935 Residence (County) | Mesa |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Township / Ward | Grand Junction City |
| Est. Birth Year | ~1919 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Vivian Long | Daughter | — | 16 | ~1924 |
| Letizia Long | Daughter | — | 26 | ~1914 |
| Leona Long | Daughter | — | 19 | ~1921 |
| Eugene Long | Head | — | 52 | ~1888 |
| Robert Long | Son | — | 21 | ~1919 |
| Philma Long | Spouse | — | 45 | ~1895 |
Census Appearances
1920
Mesa, Colorado
Son, age 1
Mesa, Colorado · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Long |
| Given Name | Robert A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Nebraska |
| Mother's Birthplace | Ohio |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1930
Mesa, Colorado
Son, age 11
Mesa, Colorado · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Long |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Nebraska |
| Mother's Birthplace | Ohio |
| Can Read/Write | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Mesa-County, Colorado
Son, age 21
Mesa-County, Colorado · implied b. ~1919 — 6 household members
| Surname | Long |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | Grand Junction City |
| 1935 Residence (County) | Mesa |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
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 Long across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Alvin Long (~0.92 confidence) and father Eugene Long (~0.92 confidence) and father Roy Long (~0.92 confidence) and mother Leila Long (~0.92 confidence) and mother Philma Long (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Alvin Long
b. ~1887
Source father
● Household
· direct · ~0.92
Father
Eugene Long
b. ~1888
Source father
● Household
· direct · ~0.92
Father
Roy Long
b. ~1889
Source father
● Household
· direct · ~0.92
Mother
Leila Long
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Philma Long
b. ~1895
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Long
Son · 1940 · age 21 · b. ~1919 · Colorado
★ You are viewing this record
Sibling
Vivian Long
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leona Long
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Letizia Long
Sibling · 1940 · age 26
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-t0627-00470-00258)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Georgia Andros | 15 | Sister in law | — | Idaho |
| 42 | William J Porter | 34 | Head | Brakeman | Utah |
| 43 | Una Porter | 26 | Wife | — | Utah |
| 44 | Renee Porter | 7 | Daughter | — | Utah |
| 45 | De Loy Porter | 5 | Son | — | Utah |
| 46 | Wilma Porter | 2 | Daughter | — | Colorado |
| 47 | Edward Porter | 1 | Son | — | Colorado |
| 48 | Eugene Long | 52 | Head | Proprietor | Italy |
| 49 | Philma Long | 45 | Wife | — | Colorado |
| 50 | Letizia Long | 26 | Daughter | Saleslady | Colorado |
| 51 | Robert Long THIS PERSON | 21 | Son | — | Colorado |
| 52 | Leona Long | 19 | Daughter | Saleslady | Colorado |
| 53 | Vivian Long | 16 | Daughter | — | Colorado |
| 54 | Valla D Dulmage | 74 | Head | Manager & Saleslady | Michigan |
| 55 | J. J. Jackson | 42 | Lodger | Miner | Colorado |
| 56 | Frank Altomoro | 52 | Head | Car Man | Italy |
| 57 | Bessie Mary Altomoro | 55 | Sister | — | Italy |
| 58 | Nora Fontanari | 26 | Niece | — | Colorado |
| 59 | Leona Lee Fontanari | 5 | Grand niece | — | Colorado |
| 60 | James Jensen | 47 | Head | Brakeman | Denmark |
| 61 | Gladys Jensen | 42 | Wife | — | Nebraska |
| 62 | James Jensen | 20 | Son | Bakers Helper | Utah |
| 63 | Lorraine Jensen | 17 | Daughter | — | Utah |
| 64 | Ernest Pato | 28 | Head | Helper Boilermaker | Colorado |
| 65 | Dorothea Pato | 24 | Wife | — | Colorado |
| 66 | William W. Price | 33 | Head | Brakeman | Iowa |
| 67 | Inez Price | 20 | Wife | — | Oklahoma |
| 68 | Robert Grant Price | 2 | Son | — | Colorado |
| 69 | James Guerrie | 24 | Head | Brakeman | Colorado |
| 70 | Jennie Guerrie | 22 | Wife | — | Utah |
| 71 | Joe Rivera | 58 | Head | Laborer | Colorado |
| 72 | Mary Rivera | 49 | Wife | — | Colorado |
| 73 | Joe Rivera | 20 | Son | Laborer | Colorado |
| 74 | Della Rivera | 18 | Daughter | Housework | Colorado |
| 75 | John Rivera | 13 | Son | — | Colorado |
| 76 | Fred S. Rivera | 23 | Head | Laborer | Colorado |
| 77 | Emma Rivera | 21 | Wife | — | Colorado |
| 78 | Eusanarice Rivera | 2 | Daughter | — | Colorado |
| 79 | Eleanor Seely Rivera | 1 | Daughter | — | Colorado |
| 80 | J. M. Woody | 72 | Head | — | North Carolina |
Pedigree Summary
Robert + 3 siblings
Gen 1 · 5 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)