RC
Robert Carroll — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Wayne-County, Michigan
Our Model Tree links this Robert Carroll across the 1930 and 1940 US Censuses in Wayne-County, Michigan (XGBoost, ~Confirmed) — first a son (b.~1920), then head of a 9-person household.
Age 20
b. ~1920
Male
Son
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Wayne-County, Michigan |
| Surname | Carroll |
| Given Name | Robert J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Detroit City |
| 1935 Residence (County) | Wayne |
| Additional Details | |
| Occupation | Grocery Clerk |
| Industry | Grocery Store |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 300 |
| Highest Grade | H-4 |
| 1935 Residence | Same house |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | Grocery Clerk |
| Township / Ward | Detroit City |
| Est. Birth Year | ~1920 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Carroll | Daughter | — | 13 | ~1927 |
| Margaret Carroll | Daughter | — | 16 | ~1924 |
| Matthew Carroll | Son | — | 15 | ~1925 |
| Coleman Carroll | Head | — | 44 | ~1896 |
| Mary Carroll | Daughter | — | 18 | ~1922 |
| Theresa Carroll | Daughter | — | 12 | ~1928 |
| Mary Carroll | Spouse | — | 48 | ~1892 |
| Coleman Carroll | Son | — | 22 | ~1918 |
| Robert Carroll | Son | — | 20 | ~1920 |
Census Appearances
1930
Wayne, Michigan
Son, age 9
Wayne, Michigan · implied b. ~1921 — 13 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carroll |
| 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 |
| Veteran | No |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Wayne-County, Michigan
Son, age 20
Wayne-County, Michigan · implied b. ~1920 — 9 household members
| Surname | Carroll |
| Given Name | Robert J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Detroit City |
| 1935 Residence (County) | Wayne |
| Occupation | Grocery Clerk |
| Industry | Grocery Store |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 300 |
| Highest Grade | H-4 |
| 1935 Residence | Same house |
| 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 Carroll across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Carroll
Son · 1940 · age 20 · b. ~1920 · Michigan
★ You are viewing this record
Sibling
Mary Carroll
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Carroll
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Theresa Carroll
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Matthew Carroll
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Coleman Carroll
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Carroll
Sibling · 1940 · age 13
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-t0627-01881-00346)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Thomas Stringfield | 30 | Head | Sales Order Supervisor | Canada-English |
| 2 | Margaret Stringfield | 29 | Wife | — | Colorado |
| 3 | Carol Stringfield | 0 | Daughter | — | Michigan |
| 4 | Mildred L. Smith | 36 | Head | — | Michigan |
| 5 | Joann E. Smith | 7 | Daughter | — | Michigan |
| 6 | Marilyn J. Smith | 5 | Daughter | — | Michigan |
| 7 | Mary A. Adelhaun | 19 | Lodger | Housekeeper | Michigan |
| 8 | George W. Hurbutau | 50 | Head | Contract Man | Michigan |
| 9 | Adele M. Hurbutau | 45 | Wife | — | Michigan |
| 10 | Donald G. Hurbutau | 19 | Son | Mailing Clerk | Michigan |
| 11 | Howard E. Scherer | 24 | Head | Laborer | Michigan |
| 12 | Frances Scherer | 25 | Wife | — | Michigan |
| 13 | Judith Scherer | 1 | Daughter | — | Michigan |
| 14 | Adam Gottler | 24 | Head | Assembler | Michigan |
| 15 | Josephine Gottler | 23 | Wife | Assembler | Michigan |
| 16 | John B. Schwenk | 60 | Father-in-law | — | Michigan |
| 17 | Margaret Schwenk | 58 | Mother-in-law | — | Michigan |
| 18 | Elaine F. Gottler | 0 | Daughter | — | Michigan |
| 19 | Max E. Hinge | 66 | Head | Elevator Operator | Germany |
| 20 | Adeline Hinge | 61 | Wife | — | Germany |
| 21 | Hayward Max Hinge | 31 | Son | Truck Driver | Michigan |
| 22 | H. Lea Melva Hinge | 27 | Daughter | Secretary | Michigan |
| 23 | George E. Muehling | 68 | Head | Pattern Maker | New York |
| 24 | Violet Muehling | 56 | Wife | — | England |
| 25 | George Muehling | 31 | Son | Musician | Canada-English |
| 26 | Paul Morsch | 29 | Head | Bottler | Michigan |
| 27 | Edith Morsch | 25 | Wife | — | New York |
| 28 | Mary Morsch | 54 | Mother | — | Michigan |
| 29 | John Wachowski | 44 | Head | Fireman | Poland |
| 30 | Helen Wachowski | 41 | Wife | — | Pennsylvania |
| 31 | Raymond Wachowski | 11 | Son | — | Michigan |
| 32 | Coleman D. Carroll | 44 | Head | Captain | Michigan |
| 33 | Mary Carroll | 48 | Wife | — | Michigan |
| 34 | Coleman D. Jr. Carroll | 22 | Son | Stock Clerk | Michigan |
| 35 | Robert J. Carroll THIS PERSON | 20 | Son | Grocery Clerk | Michigan |
| 36 | Mary Carroll | 18 | Daughter | Saleswoman | Michigan |
| 37 | Margaret Carroll | 16 | Daughter | — | Michigan |
| 38 | Matthew Carroll | 15 | Son | — | Michigan |
| 39 | Dorothy Carroll | 13 | Daughter | — | Michigan |
| 40 | Theresa Carroll | 12 | Daughter | — | 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)