MD
Mary Davis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this Mary Davis across the 1910, 1920, 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed) — first a head (b.~1869), then head of a 2-person household.
Age 71
b. ~1869
Female
Head
Born: Maryland
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Davis |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 71 |
| Marital Status | Widowed |
| Birthplace | Maryland |
| 1935 Residence (City) | BALTIMORE CITY |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Highest Grade | No 0 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1869 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Davis | Head | — | 71 | ~1869 |
| Samuel Davis | Son | — | 45 | ~1895 |
Census Appearances
1910
Baltimore, Maryland
Spouse, age 45
Baltimore, Maryland · implied b. ~1865 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Maryland |
| Years Married | 25 |
| Children Born | 4 |
| Children Living | 4 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1920
Baltimore, Maryland
Spouse, age 53
Baltimore, Maryland · implied b. ~1867 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Laborer |
| Industry | Oyster |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Spouse, age 62
Baltimore, Maryland · implied b. ~1868 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 22 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Head, age 71
Baltimore-City-County, Maryland · implied b. ~1869 — 2 household members
| Surname | Davis |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 71 |
| Marital Status | Widowed |
| Birthplace | Maryland |
| 1935 Residence (City) | BALTIMORE CITY |
| 1935 Residence (County) | Baltimore City |
| Highest Grade | No 0 |
| 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 Mary Davis across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Davis
Head · 1940 · age 71 · b. ~1869 · 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
38 people indexed on this census page (nara:1940:m-t0627-01508-00819)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary Davis THIS PERSON | 71 | Head | — | Maryland |
| 2 | Samuel Davis | 45 | Son | Attendant | Maryland |
| 3 | Chester M Pisarek | 52 | Head | Iron Moulder | Poland |
| 4 | Margaret Pisarek | 41 | Wife | — | Maryland |
| 5 | Margaret Pisarek | 3 | Daughter | — | Maryland |
| 6 | Marie Gurska | 9 | Step-Daughter | — | Maryland |
| 7 | Frank Budrecki | 59 | Head | Shaper Hand | Lithuania |
| 8 | Agnes Budrecki | 45 | Wife | Glass Washer | Lithuania |
| 9 | Joseph Budrecki | 26 | Son | Auto Assembly | Pennsylvania |
| 10 | Zopito Tereo | 45 | Head | Barber | Italy |
| 11 | Helen Tereo | 40 | Wife | Clothes Presser | Maryland |
| 12 | Livia Tereo | 15 | Daughter | — | Maryland |
| 13 | Oliver Tereo | 14 | Son | — | Maryland |
| 14 | Yolanda Tereo | 13 | Daughter | — | Maryland |
| 15 | Eugene Tereo | 10 | Son | — | Maryland |
| 16 | William Stanton | 38 | Head | — | Maryland |
| 17 | Anna Stanton | 29 | Wife | — | Maryland |
| 18 | William Stanton | 9 | Son | — | Maryland |
| 19 | Jean Stanton | 8 | Daughter | — | Maryland |
| 20 | Anna Stanton | 5 | Daughter | — | Maryland |
| 21 | Edward Stanton | 3 | Son | — | Maryland |
| 22 | Conrad Neilbar | 55 | Head | — | Washington D.C. |
| 23 | Rose Neilbar | 33 | Daughter | Board Clerk | Maryland |
| 24 | John Neilbar | 32 | Son | Laborer | Maryland |
| 25 | Albert Neilbar | 30 | Son | — | Maryland |
| 26 | Frank Zielinski | 57 | Head | — | Poland |
| 27 | Frances Zielinski | 45 | Daughter | Seamstress | Maryland |
| 28 | Anna Zielinski | 34 | Daughter | Seamstress | Maryland |
| 29 | Stanika Wisniewski | 56 | Head | — | Poland |
| 30 | Joseph Wisniewski | 35 | Son | Laborer | Mississippi |
| 31 | John Wisniewski | 25 | Son | Spinner | Maryland |
| 32 | Veronika Wisniewski | 21 | Daughter | General Clerk | Maryland |
| 33 | Laird B Rose | 56 | Head | Weigh Master | Maryland |
| 34 | Mary Rose | 54 | Wife | — | Maryland |
| 35 | Laird J Rose | 25 | Son | — | Maryland |
| 36 | Robert B Rose | 22 | Son | — | Maryland |
| 37 | John Zawistowski | 75 | Head | — | Poland |
| 38 | Wladyslaw Zawistowski | 67 | Wife | — | Poland |
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)