RD
Robert Davis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Wayne-County, Michigan
Our Model Tree links this Robert Davis across the 1920, 1930 and 1940 US Censuses in Wayne-County, Michigan (XGBoost, ~Confirmed), with identified parents Munro & John — first a son (b.~1916), then head of a 4-person household.
Age 24
b. ~1916
Male
Son
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Wayne-County, Michigan |
| Surname | Davis |
| Given Name | Robert N. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Detroit City |
| 1935 Residence (County) | Wayne |
| Additional Details | |
| Occupation | magazine salesman |
| Industry | publishing Co. |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 52 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | Magazine Salesman |
| Township / Ward | Detroit City |
| Est. Birth Year | ~1916 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Alice Davis | Daughter | — | 37 | ~1903 |
| Morris Davis | Head | — | 67 | ~1873 |
| Robert Davis | Son | — | 24 | ~1916 |
| Cornelia Davis | Spouse | — | 67 | ~1873 |
Census Appearances
1920
Wayne, Michigan
Son, age 3
Wayne, Michigan · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Robert H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1930
Wayne, Michigan
Son, age 14
Wayne, Michigan · implied b. ~1916 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Robert H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Wayne-County, Michigan
Son, age 24
Wayne-County, Michigan · implied b. ~1916 — 4 household members
| Surname | Davis |
| Given Name | Robert N. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Detroit City |
| 1935 Residence (County) | Wayne |
| Occupation | magazine salesman |
| Industry | publishing Co. |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 52 |
| Highest Grade | No 8 |
| 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 Davis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Munro Davis (~0.92 confidence) and father John Davis (~0.92 confidence) and father Morris Davis (~0.92 confidence) and mother Cornelia Davis (~0.92 confidence) and mother Hazel Davis (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Munro Davis
b. ~1873
Source father
● Household
· direct · ~0.92
Father
John Davis
b. ~1886
Source father
● Household
· direct · ~0.92
Father
Morris Davis
b. ~1873
Source father
● Household
· direct · ~0.92
Mother
Cornelia Davis
b. ~1873
Source mother
● Household
· direct · ~0.92
Mother
Hazel Davis
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Davis
Son · 1940 · age 24 · b. ~1916 · Michigan
★ You are viewing this record
Sibling
Alice Davis
Sibling · 1940 · age 37
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
38 people indexed on this census page (nara:1940:m-t0627-01855-00473)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Shirley Prentice | 1 | Daughter | — | Michigan |
| 2 | Jeannette Prentice | 0 | Daughter | — | Michigan |
| 3 | William Mcpherson | 34 | Head | Laborer | Missouri |
| 4 | Katherine Mcpherson | 27 | Wife | Ho Ho Ho Ho | Missouri |
| 5 | David Mcpherson | 8 | Son | — | Missouri |
| 6 | Patsy Mcpherson | 5 | Daughter | — | Missouri |
| 7 | Donald Mcpherson | 3 | Son | — | Michigan |
| 8 | Dean Mcpherson | 2 | Son | — | Michigan |
| 10 | Anna Lachuk | 44 | Head | Cleaning Lady | Russia |
| 11 | Nina Lachuk | 20 | Daughter | Census Enumerator | Michigan |
| 12 | Morris H. Davis | 67 | Head | Grocery Clerk | Michigan |
| 13 | Cornelia A. Davis | 67 | Wife | Ho Ho Ho Ho | Michigan |
| 14 | Alice C. Davis | 37 | Daughter | Teacher | Michigan |
| 15 | Robert N. Davis THIS PERSON | 24 | Son | Magazine Salesman | Michigan |
| 16 | John Mallock | 51 | Head | Steam Fitter | Ohio |
| 17 | Ethel Mallock | 43 | Wife | Ho Ho Ho Ho | Michigan |
| 18 | Robert Mallock | 25 | Son | Machine Operator | Michigan |
| 19 | Annette Mallock | 22 | Daughter | New Worker | Michigan |
| 20 | Annie Vahlbusch | 65 | Mother | Ho Ho Ho Ho | Michigan |
| 21 | Archie M. Wilson | 52 | Head | Pattern Maker | New York |
| 22 | Hettie Wilson | 52 | Wife | Ho Ho Ho Ho | Michigan |
| 23 | Archie W. Wilson | 24 | Son | Metal Finisher | Michigan |
| 24 | Gavin Mann | 54 | Head | Gear Cutter | Scotland |
| 25 | Marian Mann | 53 | Wife | Ho Ho Ho Ho | Scotland |
| 27 | Otto Plum | 34 | Head | Maintenance Man | Missouri |
| 28 | Dorothy Plum | 32 | Wife | Ho Ho Ho Ho | Missouri |
| 29 | Otto Jr. Plum | 12 | Son | — | Missouri |
| 30 | Juanita Plum | 10 | Daughter | — | Oklahoma |
| 31 | Lukas Ryl | 44 | Head | Bartender | Poland |
| 32 | Antonina Ryl | 45 | Wife | Grocery Clerk | Poland |
| 33 | John Ryl | 20 | Son | Laborer | Michigan |
| 34 | Stephan Ryl | 17 | Son | Ho Ho Ho Ho | Michigan |
| 35 | John Zaun | 35 | Head | Refrigeration Man | Germany |
| 36 | Helen Zaun | 35 | Wife | Ho Ho Ho Ho | Pennsylvania |
| 37 | Robert Zaun | 10 | Son | — | Michigan |
| 38 | Lorraine Zaun | 2 | Daughter | — | Michigan |
| 39 | Arthur E. Lundgren | 47 | Head | Gas Attendant | Michigan |
| 40 | Marie Lundgren | 50 | Wife | Ho Ho Ho Ho | Michigan |
Pedigree Summary
Robert + 1 sibling
Gen 1 · 5 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)