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Robert Griffin — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Wayne, Michigan
Our Model Tree links this Robert Griffin across the 1930 and 1940 US Censuses in Wayne, Michigan (XGBoost, ~Confirmed) — first a son (b.~1921), then head of a 10-person household.
Age 9
b. ~1921
Male
Son
Born: Georgia
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Wayne, Michigan |
| Surname | Griffin |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Georgia |
| Father's Birthplace | Georgia |
| Mother's Birthplace | Georgia |
| Additional Details | |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
| Township / Ward | Detroit City |
| Est. Birth Year | ~1921 |
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 1930 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Lillie Griffin | Daughter | — | 17 | ~1913 |
| Mildred Griffin | Daughter | — | 6 | ~1924 |
| Anna Griffin | Spouse | — | 40 | ~1890 |
| Robert Griffin | Son | — | 9 | ~1921 |
| Alice Griffin | Daughter | — | 4 | ~1926 |
| Jessie Griffin | Daughter | — | 10 | ~1920 |
| Charles Griffin | Head | — | 48 | ~1882 |
| Rosa Griffin | Daughter | — | 20 | ~1910 |
| James Griffin | Son | — | 7 | ~1923 |
| Freddie Griffin | Daughter | — | 13 | ~1917 |
Census Appearances
1930
Wayne, Michigan
Son, age 9
Wayne, Michigan · implied b. ~1921 — 10 household members
| Surname | Griffin |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Georgia |
| Father's Birthplace | Georgia |
| Mother's Birthplace | Georgia |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
1940
Wayne-County, Michigan
Son, age 19
Wayne-County, Michigan · implied b. ~1921 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Griffon |
| Given Name | Robert |
| Relationship to Head | son |
| Sex | M |
| Color / Race | Black |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Georgia |
| 1935 Residence (County) | Wayne |
| Occupation | 40 |
| Industry | gardner |
| Class of Worker | Private home |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
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 Griffin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Griffin
Son · 1930 · age 9 · b. ~1921 · Michigan
★ You are viewing this record
Sibling
Freddie Griffin
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Griffin
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lillie Griffin
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Griffin
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rosa Griffin
Sibling · 1930 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mildred Griffin
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jessie Griffin
Sibling · 1930 · age 10
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
1930 US Federal Census — Wayne, Michigan
Open full size
1930 US Federal Census — Wayne, Michigan
Page Contents
50 people indexed on this census page (ia:1930:michigancensus00reel1044ns:0437)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Virgil Jr. Davis | 10 | Son | None | Georgia |
| 2 | Fannie Davis | 56 | Mother | Servant | Georgia |
| 3 | Carrie Shannon | 42 | Head | Laborer | Kentucky |
| 4 | John Mcdaniel | 34 | Lodger | Laborer | Arkansas |
| 5 | John Wilson | 32 | Head | Laborer | Arkansas |
| 6 | Thelma Wilson | 21 | Wife | None | Oklahoma |
| 7 | James Ellis | 52 | Father-in-law | Laborer | Georgia |
| 8 | Nelson Armour | 31 | Head | Chauffeur | Georgia |
| 9 | Alline Armour | 26 | Wife | None | Georgia |
| 10 | Bertha Armour | 6 | Daughter | None | Michigan |
| 11 | Ernest Armour | 4 | Son | None | Michigan |
| 12 | Rogers Armour | 3 | Son | None | Michigan |
| 13 | Charles Griffin | 48 | Head | Janitor | Georgia |
| 14 | Anna Griffin | 40 | Wife | None | Georgia |
| 15 | Rosa M. Griffin | 20 | Daughter | Maid | Georgia |
| 16 | Lillie B. Griffin | 17 | Daughter | Maid | Georgia |
| 17 | Freddie L. Griffin | 13 | Daughter | None | Georgia |
| 18 | Jessie Griffin | 10 | Daughter | None | Georgia |
| 19 | Robert Griffin THIS PERSON | 9 | Son | None | Georgia |
| 20 | James Griffin | 7 | Son | None | Georgia |
| 21 | Mildred Griffin | 6 | Daughter | None | North Carolina |
| 22 | Alice R. Griffin | 4 | Daughter | None | North Carolina |
| 23 | Anthony Scipolla | 62 | Head | Helper | Italy |
| 24 | Mary Scipolla | 52 | Wife | None | Italy |
| 25 | James Dello | 35 | Son-in-law | Barber | Italy |
| 26 | Jane Dello | 24 | Daughter | None | Italy |
| 27 | Alphonse Dello | 4 | Son | None | Michigan |
| 28 | Anthony Dello | 2 | Son | None | Michigan |
| 29 | Virginia Walton | 45 | Head | None | Alabama |
| 30 | William L. Walton | 27 | Son | Mechanic | Alabama |
| 31 | Virginia Walton | 20 | Daughter | None | Alabama |
| 32 | William Walton | 9 | Grandson | None | Michigan |
| 33 | Clifford C. Douglass | 26 | Son-in-law | Chauffeur | Illinois |
| 34 | Florence Douglass | 18 | Daughter | None | Texas |
| 35 | Robert Taylor | 3 | Grandson | None | Michigan |
| 36 | James W. Murphy | 45 | Head | Expressing | Illinois |
| 37 | Gertrude Murphy | 45 | Wife | None | Illinois |
| 38 | James W. Murphy | 22 | Son | None | Missouri |
| 39 | Amos Jackson | 35 | Head | Laborer | Georgia |
| 40 | Lee Jackson | 25 | Wife | None | Mississippi |
| 41 | Sunnah Rivers | 37 | Head | Laborer | Georgia |
| 42 | Theresa Rivers | 38 | Wife | None | Georgia |
| 43 | Alena Rivers | 15 | Daughter | None | Georgia |
| 44 | Welcome Rivers | 13 | Son | None | Georgia |
| 45 | John H. Mcduffee | 28 | Head | Clerk | Alabama |
| 46 | Marion B. Mcduffee | 26 | Wife | None | Alabama |
| 47 | Huley Evans | 20 | Brother-in-law | Waiter | Alabama |
| 48 | Myrtle Evans | 18 | Sister-in-law | Assistant | Alabama |
| 49 | Ruben Evans | 15 | Brother-in-law | None | Alabama |
| 50 | Carroll Evans | 12 | Brother-in-law | None | Alabama |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)