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Robert Grant — 1940 US Census Record
Model Tree available1940 United States Federal Census · Wayne-County, Michigan
Our Model Tree links this Robert Grant across the 1920, 1930 and 1940 US Censuses in Wayne-County, Michigan (XGBoost, ~Confirmed), with identified parents Theodore & Hattie — first a son (b.~1913), then head of a 5-person household.
Age 27
b. ~1913
Male
Son
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Wayne-County, Michigan |
| Surname | Grant |
| Given Name | Robert L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Detroit City |
| 1935 Residence (County) | Wayne |
| Additional Details | |
| Occupation | spot welder |
| Industry | auto stamp mfg |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1150 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | Spot Welder |
| Township / Ward | Detroit City |
| Est. Birth Year | ~1913 |
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 |
|---|---|---|---|---|
| Leonilla Grant | Daughter | — | 40 | ~1900 |
| Catherine Wanamaker | Other | — | 85 | ~1855 |
| Robert Grant | Son | — | 27 | ~1913 |
| Hattie Grant | Head | — | 63 | ~1877 |
| Shirley Grant | Daughter | — | 19 | ~1921 |
Census Appearances
1920
Wayne, Michigan
Son, age 7
Wayne, Michigan · implied b. ~1913 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Grant |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1930
Wayne, Michigan
Son, age 17
Wayne, Michigan · implied b. ~1913 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Grant |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Married |
| Birthplace | Michigan |
| Age at First Marriage | 17 |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Occupation | Mail Clerk |
| Industry | Office |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Wayne-County, Michigan
Son, age 27
Wayne-County, Michigan · implied b. ~1913 — 5 household members
| Surname | Grant |
| Given Name | Robert L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Detroit City |
| 1935 Residence (County) | Wayne |
| Occupation | spot welder |
| Industry | auto stamp mfg |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1150 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 Grant across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Theodore Grant (~0.92 confidence) and mother Hattie Grant (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Theodore Grant
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Hattie Grant
b. ~1877
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Grant
Son · 1940 · age 27 · b. ~1913 · Michigan
★ You are viewing this record
Sibling
Leonilla Grant
Sibling · 1940 · age 40
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Shirley Grant
Sibling · 1940 · age 19
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 — Wayne-County, Michigan
Open full size
1940 US Federal Census — Wayne-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01843-00859)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lowell Wilson | 39 | Head | Machinist | Arkansas |
| 2 | Irma Wilson | 34 | Wife | — | Missouri |
| 3 | James Healip | 46 | Lodger | Inspector | W Virginia |
| 4 | Angel Teal | 24 | Lodger | Foundryman | Missouri |
| 5 | Hattie C. Grant | 63 | Head | — | Michigan |
| 6 | Robert L. Grant THIS PERSON | 27 | Son | Spot Welder | Michigan |
| 7 | Shirley May Grant | 19 | Daughter | Typist | Michigan |
| 8 | Leonilla Curtiss Grant | 40 | Daughter | Bill Clerk | Michigan |
| 9 | Catherine Wanamaker | 85 | Mother | — | Michigan |
| 10 | Catherine Rubbe | 51 | Head | — | Canada-Eng |
| 11 | Herman Rubbe | 22 | Son | Gas Sta Attendant | Michigan |
| 12 | Lloyd Rubbe | 18 | Son | Laborer | Michigan |
| 13 | Isabel Rubbe | 14 | Daughter | — | Michigan |
| 14 | Adam Pritz | 30 | Lodger | Truck Driver | Maryland |
| 15 | Patrick Meloche | 59 | Head | Owner | Canada-French |
| 16 | Rose Meloche | 57 | Wife | — | Canada-French |
| 17 | Irvin Meloche | 23 | Son | Salesman | Michigan |
| 18 | Harold Meloche | 34 | Son | Manufacturer | Michigan |
| 19 | Lyman Ronicov | 52 | Head | Painter & Decorator | Russia |
| 20 | Marie Ronicov | 45 | Wife | — | England |
| 21 | Joseph Ronicov | 23 | Son | Painter | England |
| 22 | Monte Ronicov | 17 | Son | — | England |
| 23 | Simar Ratajczak | 28 | Head | Machinist | Massachusetts |
| 24 | Anthony Ratajczak | 30 | Brother | Press Operator | Massachusetts |
| 25 | Charles Ratajczak | 26 | Brother | Sampler | Massachusetts |
| 26 | Frank Ratajczak | 21 | Brother | Salesman | Massachusetts |
| 27 | Anna Ratajczak | 17 | Sister | — | Massachusetts |
| 28 | Robert Softis | 74 | Head | — | Mississippi |
| 29 | Emma Softis | 64 | Wife | — | Virginia |
| 30 | Oscar Thomas | 49 | Lodger | Minister | Mississippi |
| 31 | Almo Thomas | 38 | Lodger's wife | — | Mississippi |
| 32 | Willis Sylees | 34 | Head | Sorter | Arkansas |
| 33 | Mary Sylees | 31 | Wife | — | Arkansas |
| 34 | Alen Scott | 44 | Brother-in-law | Saw Mill Hand | Arkansas |
| 35 | Gracie Scott | 34 | Sister-in-law | Cleaner | Arkansas |
| 36 | Robert Jr. Carter | 23 | Lodger | Sewer Laborer | Georgia |
| 37 | Christine Carter | 23 | Lodger's wife | — | Kentucky |
| 38 | Lucile Hill | 40 | Lodger | Seamstress | Georgia |
| 39 | Doris Hill | 11 | Lodger's daughter | — | Georgia |
| 40 | Lee Moore | 30 | Lodger | Sorter | Texas |
Pedigree Summary
Robert + 2 siblings
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)