RB
Robert Black — 1940 US Census Record
Model Tree available1940 United States Federal Census · Mason-County, Michigan
Our Model Tree links this Robert Black across the 1920, 1930 and 1940 US Censuses in Mason-County, Michigan (XGBoost, ~Confirmed), with identified parents Robert & Robert — first a head (b.~1917), then head of a 5-person household.
Age 23
b. ~1917
Male
Head
Born: Michigan
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Mason-County, Michigan |
| Surname | Black |
| Given Name | Robert |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Mason |
| Additional Details | |
| Occupation | Laborer |
| Industry | Mnfg. Co. |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 750 |
| Highest Grade | No 8 |
| 1935 Residence | Michigan |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | Laborer |
| Township / Ward | Ludington |
| Est. Birth Year | ~1917 |
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 |
|---|---|---|---|---|
| Robert Black | Head | — | 23 | ~1917 |
| Beatrice Black | Other | — | 17 | ~1923 |
| Arleen Black | Other | — | 15 | ~1925 |
| Robert Black | Son | — | 1 | ~1939 |
| Mary Black | Spouse | — | 19 | ~1921 |
Census Appearances
1920
Mason, Michigan
Son, age 3
Mason, Michigan · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Black |
| Given Name | Robert J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Sweden |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1930
Mason, Michigan
Son, age 13
Mason, Michigan · implied b. ~1917 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bluck |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Sweden |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Mason-County, Michigan
Head, age 23
Mason-County, Michigan · implied b. ~1917 — 5 household members
| Surname | Black |
| Given Name | Robert |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Mason |
| Occupation | Laborer |
| Industry | Mnfg. Co. |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 750 |
| Highest Grade | No 8 |
| 1935 Residence | Michigan |
| 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 Black across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Robert Black (~0.92 confidence) and father Robert Bluck (~0.92 confidence) and mother Edith Black (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Robert Black
b. ~1894
Source father
● Household
· direct · ~0.92
Father
Robert Bluck
b. ~1894
Source father
● Household
· direct · ~0.92
Mother
Edith Black
b. ~1897
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Black
Head · 1940 · age 23 · b. ~1917 · Michigan
★ 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 — Mason-County, Michigan
Open full size
1940 US Federal Census — Mason-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01788-00365)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Olga B. Anderson | 48 | wife | Housewife | Michigan |
| 42 | Jayne Anderson | 16 | daughter | — | Michigan |
| 43 | Louis S. Anderson | 24 | head | General Office Work | Michigan |
| 44 | De Lyle O. Anderson | 24 | wife | — | Michigan |
| 45 | Douglas Anderson | 2 | son | — | Michigan |
| 46 | Ollie O. Williams | 65 | head | — | Indiana |
| 47 | Charles Daugherty | 61 | brother | Laborer | Indiana |
| 48 | Robert Black THIS PERSON | 23 | head | Laborer | Michigan |
| 49 | Mary O. Black | 19 | wife | — | Michigan |
| 50 | Robert Black | 1 | son | — | Michigan |
| 51 | Beatrice Black | 17 | sister | — | Michigan |
| 52 | Arleen Black | 15 | sister | — | Michigan |
| 53 | Allan Burch | 52 | head | Partner - Mnfg Co | Canada English |
| 54 | Belle O. Burch | 48 | wife | — | Michigan |
| 55 | Mary Jane Burch | 16 | daughter | — | Michigan |
| 56 | Joseph A. Hook | 50 | head | Chief Engineer | Canada French |
| 57 | Harriet Hook | 48 | wife | — | Germany |
| 58 | Harriet Hook | 23 | daughter | — | Michigan |
| 59 | Joseph Hook | 21 | son | — | Michigan |
| 60 | Helen O. Hook | 15 | daughter | — | Michigan |
| 61 | Owen J. Havigan | 46 | head | Probate Judge | Michigan |
| 62 | Josephine Havigan | 38 | wife | — | Michigan |
| 63 | Eileen Havigan | 17 | daughter | Clerk | Michigan |
| 64 | Owen J. Jr. Havigan | 15 | son | — | Michigan |
| 65 | Sam Conkling | 63 | head | Switchman | Michigan |
| 66 | Maud O. Conkling | 58 | wife | — | Michigan |
| 67 | George O. Adams | 73 | head | Clerk | New York |
| 68 | Margaret Adams | 67 | wife | — | Kansas |
| 69 | Lennie O. Dionne | 60 | head | Seamstress | Michigan |
| 70 | Katheryn Knab | 30 | daughter | Housekeeper | Michigan |
| 71 | Robert L. Knab | 3 | grandson | — | Michigan |
| 72 | Maurice Evans | 40 | head | Research Field Worker | Indiana |
| 73 | Willie O. Evans | 37 | wife | — | Kentucky |
| 74 | Archie Ab. Bissell | 62 | head | Conductor | Michigan |
| 75 | Maud O. Bissell | 63 | wife | — | Michigan |
| 76 | Archie Jr. Bissell | 22 | son | Polisher | Michigan |
| 77 | Paul G. Bissell | 18 | son | — | Michigan |
| 78 | Mary Washatka | 73 | head | — | Canada French |
| 79 | Francis O. Gingrich | 36 | daughter | Saleswoman | Michigan |
| 80 | Frank Indianski | 73 | head | — | Germany |
Pedigree Summary
Robert
Gen 1 · 3 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)