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Robert Gray — 1940 US Census Record
Model Tree available1940 United States Federal Census · Waseca-County, Minnesota
Our Model Tree links this Robert Gray across the 1920, 1930 and 1940 US Censuses in Waseca-County, Minnesota (XGBoost, ~Confirmed), with identified parents Fred & Gilbert — first a head (b.~1911), then head of a 3-person household.
Age 29
b. ~1911
Male
Head
Born: Minnesota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Waseca-County, Minnesota |
| Surname | Gray |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Waseca city |
| 1935 Residence (County) | Waseca |
| Additional Details | |
| Occupation | Line Man |
| Industry | Electric Co |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 1800 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Line Man |
| Township / Ward | Waseca City |
| Est. Birth Year | ~1911 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Barbara Gray | Daughter | — | 6 | ~1934 |
| Robert Gray | Head | — | 29 | ~1911 |
| Helen Gray | Spouse | — | 29 | ~1911 |
Census Appearances
1920
Waseca, Minnesota
Son, age 9
Waseca, Minnesota · implied b. ~1911 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gray |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Waseca, Minnesota
Son, age 19
Waseca, Minnesota · implied b. ~1911 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gray |
| Given Name | Robert H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Waseca-County, Minnesota
Head, age 29
Waseca-County, Minnesota · implied b. ~1911 — 3 household members
| Surname | Gray |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Waseca city |
| 1935 Residence (County) | Waseca |
| Occupation | Line Man |
| Industry | Electric Co |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 1800 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 Gray across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Fred Gray (~0.92 confidence) and father Gilbert Gray (~0.92 confidence) and mother Margaret Gray (~0.92 confidence) and mother Margaret Gray (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Fred Gray
b. ~1877
Source father
● Household
· direct · ~0.92
Father
Gilbert Gray
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Margaret Gray
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Margaret Gray
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Gray
Head · 1940 · age 29 · b. ~1911 · Minnesota
★ 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 — Waseca-County, Minnesota
Open full size
1940 US Federal Census — Waseca-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01966-00768)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Henry Blaser | 73 | Head | — | Wisconsin |
| 2 | Laura Blaser | 72 | Wife | — | Minnesota |
| 3 | Walter Brown | 69 | Head | Manager | Minnesota |
| 4 | Mary Ann Brown | 62 | Wife | — | Germany |
| 5 | Robert Mishek | 32 | Head | Teacher | Minnesota |
| 6 | Ruth Mishek | 28 | Wife | — | Minnesota |
| 7 | Vera Gutzke | 18 | Maid | Maid | Minnesota |
| 8 | Edwin R. Tewes | 80 | Head | — | Wisconsin |
| 9 | Lora Tewes | 73 | Wife | — | Minnesota |
| 10 | John Koehler | 31 | Head | Pharmacist | Minnesota |
| 11 | Jean Koehler | 24 | Wife | — | Minnesota |
| 12 | Joan Koehler | 0 | Daughter | — | Minnesota |
| 13 | Arthur Westphal | 43 | Head | Caretaker | Minnesota |
| 14 | Florence Westphal | 37 | Wife | — | Minnesota |
| 15 | Norbert Westphal | 15 | Son | Usher | Minnesota |
| 16 | Ester Westphal | 11 | Daughter | — | Minnesota |
| 17 | George Mahler | 55 | Head | Proprietor | Minnesota |
| 18 | Edythe Mahler | 54 | Wife | — | Wisconsin |
| 19 | George E. Mahler | 26 | Son | Clerk | Minnesota |
| 20 | Tillie Beere | 65 | Head | — | Minnesota |
| 21 | Clyde Walbran | 63 | Head | Manager | Michigan |
| 22 | Emma Walbran | 63 | Wife | — | Iowa |
| 23 | Herman Ieker | 58 | Head | Manager | Minnesota |
| 24 | Lilly Ieker | 57 | Wife | — | Minnesota |
| 25 | Roland Ieker | 20 | Son | Clerk | Minnesota |
| 26 | Paul Ieker | 16 | Son | — | Minnesota |
| 27 | Dennis Donovan | 59 | Head | Labour | Minnesota |
| 28 | Catherine Donovan | 55 | Wife | — | Minnesota |
| 29 | Sylvester Donovan | 34 | Son | Clerk | Minnesota |
| 30 | Florentine Donovan | 24 | Daughter | Operator | Minnesota |
| 31 | Mary Jane Donovan | 18 | Daughter | — | Minnesota |
| 32 | Dardican Donovan | 14 | Son | — | Minnesota |
| 33 | Robert Gray THIS PERSON | 29 | Head | Line Man | Minnesota |
| 34 | Helen Gray | 29 | Wife | — | Minnesota |
| 35 | Barbara Gray | 6 | Daughter | — | Minnesota |
| 36 | Leslie Loomer | 34 | Head | Teacher | Wisconsin |
| 37 | Bernice Loomer | 27 | Wife | — | Iowa |
| 38 | Donald Loomer | 4 | Son | — | Minnesota |
| 39 | Richard Loomer | 1 | Son | — | Minnesota |
| 40 | Burtis Hill | 22 | Head | Manager | North Dakota |
Pedigree Summary
Robert
Gen 1 · 4 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)