BS
Betty Smith — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this Betty Smith across the 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed) — first a daughter (b.~1929), then head of a 11-person household.
Age 11
b. ~1929
Female
Daughter
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Smith |
| Given Name | Betty J |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Highest Grade | Yes 3 |
| 1935 Residence | Same Place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1929 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Betty | Age | Birth yr |
|---|---|---|---|---|
| Viola Smith | Daughter | — | 20 | ~1920 |
| Betty Smith | Daughter | — | 11 | ~1929 |
| Nancy Smith | Daughter | — | 6 | ~1934 |
| Smith | Daughter | — | 3 | ~1937 |
| Grace Smith | Daughter | — | 19 | ~1921 |
| William Smith | Head | — | 42 | ~1898 |
| Edward Smith | Son | — | 18 | ~1922 |
| William Smith | Son | — | 16 | ~1924 |
| Martin Smith | Son | — | ~1940 | |
| Donald Smith | Son | — | 9 | ~1931 |
| Grace Smith | Spouse | — | 44 | ~1896 |
Census Appearances
1930
Baltimore, Maryland
Daughter, age
Baltimore, Maryland · implied b. ~1930 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Betty J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Daughter, age 11
Baltimore-City-County, Maryland · implied b. ~1929 — 11 household members
| Surname | Smith |
| Given Name | Betty J |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Highest Grade | Yes 3 |
| 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 Betty Smith across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Betty Smith
Daughter · 1940 · age 11 · b. ~1929 · Maryland
★ You are viewing this record
Sibling
Edward Smith
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Smith
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Martin Smith
Sibling · 1940 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Smith
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Grace Smith
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Viola Smith
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Smith
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nancy Smith
Sibling · 1940 · age 6
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 — 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-t0627-01534-00235)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 3 | Rosa Everhart | 76 | Head | — | Maryland |
| 4 | William T Kahn | 47 | Head | Painter | New York |
| 5 | Geneva M Kahn | 30 | Wife | — | W. Virginia |
| 6 | Jane Lynch | 7 | Grandchild | — | Maryland |
| 7 | Charles Lynch | 6 | Grandson | — | Maryland |
| 8 | Roy Chappan | 35 | Lodger | Laborer | Virginia |
| 9 | Charles Ab. Hurst | 29 | Son | Auto Mechanic | Maryland |
| 10 | James White | 62 | Head | Watchman | Maryland |
| 11 | Elizabeth White | 61 | Wife | — | Maryland |
| 12 | William White | 25 | Son | Laborer | Maryland |
| 13 | Janice White | 23 | Daughter | Operator | Maryland |
| 14 | Joyce Burns | 6 | Granddaughter | — | Maryland |
| 15 | John T Burns | 31 | Son-in-law | Checker | Maryland |
| 16 | Nellie L Burns | 28 | Daughter | — | Maryland |
| 17 | Gerald Burns | 3 | Grandson | — | Maryland |
| 18 | William J Leonard | 49 | Brother | Sheriff Ast. | Maryland |
| 19 | Albert H. Sr. Vanikover | 53 | Head | — | Maryland |
| 20 | Myrtle E Vanikover | 49 | Wife | — | Maryland |
| 21 | Raymond V Vanikover | 19 | Son | Laborer | Maryland |
| 22 | Muriel M Vanikover | 14 | Daughter | — | Maryland |
| 23 | James J Vanikover | 10 | Son | — | Maryland |
| 24 | Lucille E Vanikover | 6 | Daughter | — | Maryland |
| 25 | William E Smith | 42 | Head | Painter | Maryland |
| 26 | Grace S Smith | 44 | Wife | — | Maryland |
| 27 | Martin Smith | 0 | Son | — | Maryland |
| 28 | Viola M Smith | 20 | Daughter | New Worker | Maryland |
| 29 | Grace T Smith | 19 | Daughter | — | Maryland |
| 30 | Edward Smith | 18 | Son | Press Feeder | Maryland |
| 31 | William E Smith | 16 | Son | — | Maryland |
| 32 | Betty J Smith THIS PERSON | 11 | Daughter | — | Maryland |
| 33 | Donald Smith | 9 | Son | — | Maryland |
| 34 | Nancy Smith | 6 | Daughter | — | Maryland |
| 35 | Nan Smith | 3 | Daughter | — | Maryland |
| 36 | William A Brown | 36 | Head | Crane Operator | Maryland |
| 37 | Lucy B Brown | 31 | Wife | — | Virginia |
| 38 | William G Brown | 11 | Son | — | Maryland |
| 39 | Raymond Brown | 10 | Son | — | Maryland |
| 40 | Melvin Brown | 7 | Son | — | Maryland |
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)