WD
William Davis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this William Davis across the 1920, 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed), with identified parents Albert & Margaret — first a son (b.~1918), then head of a 3-person household.
Age 22
b. ~1918
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Davis |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Occupation | Sheet Metal Worker |
| Industry | Aircraft Mfg. Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 362 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Sheet Metal Worker |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1918 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Albert Davis | Head | — | 44 | ~1896 |
| William Davis | Son | — | 22 | ~1918 |
| Margaret Davis | Spouse | — | 47 | ~1893 |
Census Appearances
1920
Baltimore, Maryland
Other, age 2
Baltimore, Maryland · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | William |
| Relationship to Head | Boarder |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Other, age 12
Baltimore, Maryland · implied b. ~1918 — 50 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | William |
| Relationship to Head | Pupil |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Maryland |
| Age at First Marriage | 12 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Son, age 22
Baltimore-City-County, Maryland · implied b. ~1918 — 3 household members
| Surname | Davis |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Occupation | Sheet Metal Worker |
| Industry | Aircraft Mfg. Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 362 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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 William Davis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Albert Davis (~0.92 confidence) and mother Margaret Davis (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Albert Davis
b. ~1896
Source father
● Household
· direct · ~0.92
Mother
Margaret Davis
b. ~1893
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Davis
Son · 1940 · age 22 · b. ~1918 · Maryland
★ 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 — Baltimore-City-County, Maryland
Open full size
1940 US Federal Census — Baltimore-City-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01539-00099)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Wallace L. Mowbray | 7 | Son | — | Maryland |
| 2 | Louis M. Selig | 54 | Head | — | Maryland |
| 3 | Francis Selig | 19 | Son | Office Clerk | Maryland |
| 4 | Jack Broad | 29 | Head | Airplane Inspector | Connecticut |
| 5 | Helen Broad | 28 | Wife | — | Connecticut |
| 6 | John Peris | 50 | Head | Aeronautical Engineer | Maryland |
| 7 | Hannah Peris | 57 | Wife | — | Wales |
| 8 | Carrie M. Mclain | 59 | Head | — | Maryland |
| 9 | Sarah C. Mclain | 35 | Daughter | — | Maryland |
| 10 | Edwin Frandsen | 54 | Head | Furniture Finisher | Maryland |
| 11 | Mary Frandsen | 52 | Wife | — | Maryland |
| 12 | Edwin Jr. Frandsen | 21 | Son | Machinist | Maryland |
| 13 | Agnes Frandsen | 16 | Daughter | — | Maryland |
| 14 | Barbara Kremel | 24 | Daughter | Housekeeper | Maryland |
| 15 | Charles Kremel | 2 | Son-in-law | — | Maryland |
| 16 | Herman Winkler | 45 | Head | Factory Foreman | Maryland |
| 17 | Mary Winkler | 44 | Wife | — | Virginia |
| 18 | Robert Winkler | 19 | Son | Machinist App. | Maryland |
| 19 | N. Richard Winkler | 18 | Son | Factory Helper | Maryland |
| 20 | William Winkler | 16 | Son | — | Maryland |
| 21 | Mary Winkler | 12 | Daughter | — | Maryland |
| 22 | Katherine Winkler | 80 | Mother | — | Maryland |
| 23 | Fred W. Koenig | 56 | Head | — | Maryland |
| 24 | Valerie Koenig | 54 | Wife | — | Maryland |
| 25 | Rosa Oppermann | 55 | Lodger | Saleswoman | Maryland |
| 26 | (This Ends Block 40 And Begins Block 41) Oppermann | None | — | — | — |
| 27 | Anna Petrik | 64 | Head | — | Czechoslovakia |
| 28 | Howard Bollinger | 30 | Head | Mechanic | Maryland |
| 29 | Marie Bollinger | 30 | Wife | — | Maryland |
| 30 | Thomas Bollinger | 2 | Son | — | Maryland |
| 31 | Harry Dittman | 48 | Head | Business Manager | Maryland |
| 32 | Anne Montague | 49 | Daughter | — | Maryland |
| 33 | Carl Hundel | 11 | Grandson | — | Maryland |
| 34 | Earl Stevens | 32 | Head | Chief Machinist Mate | Maryland |
| 35 | Ruth Stevens | 21 | Wife | — | Maryland |
| 36 | Eveline Stevens | 3 | Daughter | — | Maryland |
| 37 | Albert B. Davis | 44 | Head | Sales Manager | Massachusetts |
| 38 | Margaret Davis | 47 | Wife | — | Maryland |
| 39 | William Davis THIS PERSON | 22 | Son | Sheet Metal Worker | Maryland |
| 40 | Phillip J. Engers | 41 | Head | Office Clerk | Maryland |
Pedigree Summary
William
Gen 1 · 2 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)