RB
Robert Blair — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Muskegon-County, Michigan
Our Model Tree links this Robert Blair across the 1930 and 1940 US Censuses in Muskegon-County, Michigan (XGBoost, ~Confirmed) — first a son (b.~1922), then head of a 10-person household.
Age 18
b. ~1922
Male
Son
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Muskegon-County, Michigan |
| Surname | Blair |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Muskegon City |
| 1935 Residence (County) | Muskegon |
| Additional Details | |
| Occupation | apprentice worker |
| Industry | sheet metal shop |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 408 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | Apprentice Worker |
| Township / Ward | Muskegon City |
| Est. Birth Year | ~1922 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Louise Blair | Daughter | — | 17 | ~1923 |
| Ann Blair | Daughter | — | 8 | ~1932 |
| Joseph Blair | Son | — | 10 | ~1930 |
| Louis Blair | Head | — | 46 | ~1894 |
| Angela Blair | Spouse | — | 46 | ~1894 |
| Thomas Blair | Son | — | 5 | ~1935 |
| Robert Blair | Son | — | 18 | ~1922 |
| Jerome Blair | Son | — | 6 | ~1934 |
| Richard Blair | Son | — | 12 | ~1928 |
| George Blair | Son | — | 14 | ~1926 |
Census Appearances
1930
Muskegon, Michigan
Son, age 9
Muskegon, Michigan · implied b. ~1921 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Blair |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Muskegon-County, Michigan
Son, age 18
Muskegon-County, Michigan · implied b. ~1922 — 10 household members
| Surname | Blair |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Muskegon City |
| 1935 Residence (County) | Muskegon |
| Occupation | apprentice worker |
| Industry | sheet metal shop |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 408 |
| 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 Blair across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Blair
Son · 1940 · age 18 · b. ~1922 · Michigan
★ You are viewing this record
Sibling
George Blair
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Louise Blair
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jerome Blair
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ann Blair
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Blair
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Blair
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Blair
Sibling · 1940 · age 12
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 — Muskegon-County, Michigan
Open full size
1940 US Federal Census — Muskegon-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01795-00777)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ray Richards | 57 | Head | Contact Man | Michigan |
| 2 | Bessie Richards | 54 | Wife | — | Michigan |
| 3 | Bernice Becker | 30 | Daughter | Stenographer | Michigan |
| 4 | Frances Richards | 27 | Daughter | Clerical | Michigan |
| 5 | Clarence Sundquist | 42 | Head | Instructor | Michigan |
| 6 | Elvie B. Sundquist | 38 | Wife | Bookkeeper | Illinois |
| 7 | Robert J. Sundquist | 18 | Son | — | Michigan |
| 8 | Mary Jane Sundquist | 14 | Daughter | — | Michigan |
| 9 | Louis Blair | 46 | Head | Bookkeeper | Michigan |
| 10 | Angela Blair | 46 | Wife | — | Michigan |
| 11 | Robert Blair THIS PERSON | 18 | Son | Apprentice Worker | Michigan |
| 12 | Louise Blair | 17 | Daughter | — | Michigan |
| 13 | George Blair | 14 | Son | — | Michigan |
| 14 | Richard Blair | 12 | Son | — | Michigan |
| 15 | Joseph Blair | 10 | Son | — | Michigan |
| 16 | Ann Blair | 8 | Daughter | — | Michigan |
| 17 | Thomas Blair | 5 | Son | — | Michigan |
| 18 | Jerome Blair | 6 | Son | — | Michigan |
| 19 | Frederick H. Clark | 60 | Head | Interior Decorator | Michigan |
| 20 | Marion Clark | 54 | Wife | — | Ohio |
| 21 | Oscar Hutchinson | 47 | Head | Shipping Clerk | Indiana |
| 22 | Enid Hutchinson | 43 | Wife | Music Teacher | Indiana |
| 23 | George Hutchinson | 18 | Son | — | Missouri |
| 24 | Marlon Hutchinson | 12 | Son | — | Indiana |
| 25 | Bruce Hutchinson | 82 | Father-in-law | — | Indiana |
| 26 | Valora Hutchinson | 74 | Mother-in-law | — | Illinois |
| 27 | William Nielsen | 51 | Head | Tool & Die Maker | Missouri |
| 28 | Ellen Nielsen | 42 | Wife | — | Michigan |
| 29 | Harold Nielsen | 17 | Son | — | Michigan |
| 30 | Lewis Nielsen | 13 | Son | — | Michigan |
| 31 | Charles Burtch | 53 | Head | Pattern Maker | Michigan |
| 32 | Lois Burtch | 51 | Wife | — | Indiana |
| 33 | Theodore Price | 55 | Head | Dry Cleaner | Michigan |
| 34 | Lyda R. Price | 52 | Wife | Clerk | Michigan |
| 35 | Leslie Franklin | 42 | Head | Foreman | Mississippi |
| 36 | Ann Franklin | 40 | Wife | — | Michigan |
| 37 | Evelyn Franklin | 20 | Daughter | Office Work | Michigan |
| 38 | Donald Franklin | 15 | Son | — | Michigan |
| 39 | Albert Lange | 38 | Head | Striper | Illinois |
| 40 | Catherine Lange | 36 | Wife | — | Michigan |
Related Census Records
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)