BS
Betty Smith — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Harford-County, Maryland
Our Model Tree links this Betty Smith across the 1930 and 1940 US Censuses in Harford-County, Maryland (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 7-person household.
Age 12
b. ~1928
Female
Daughter
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Harford-County, Maryland |
| Surname | Smith |
| Given Name | Betty |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | District 1 Abingdon |
| 1935 Residence (County) | Harford |
| Additional Details | |
| Highest Grade | G 5 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | District 1 Abingdon |
| Est. Birth Year | ~1928 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Betty | Age | Birth yr |
|---|---|---|---|---|
| Betty Smith | Daughter | — | 12 | ~1928 |
| Catherine Smith | Daughter | — | 10 | ~1930 |
| Mary Smith | Daughter | — | 16 | ~1924 |
| Fredrick Smith | Head | — | 46 | ~1894 |
| Fredrick Smith | Son | — | 21 | ~1919 |
| Robert Smith | Son | — | 20 | ~1920 |
| Annie Smith | Spouse | — | 45 | ~1895 |
Census Appearances
1930
Harford, Maryland
Daughter, age 2
Harford, Maryland · implied b. ~1928 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Betty A. |
| Relationship to Head | Daughter |
| Sex | F |
| 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 |
1940
Harford-County, Maryland
Daughter, age 12
Harford-County, Maryland · implied b. ~1928 — 7 household members
| Surname | Smith |
| Given Name | Betty |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | District 1 Abingdon |
| 1935 Residence (County) | Harford |
| Highest Grade | G 5 |
| 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 12 · b. ~1928 · Maryland
★ You are viewing this record
Sibling
Catherine Smith
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Smith
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Smith
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Fredrick Smith
Sibling · 1940 · age 21
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 — Harford-County, Maryland
Open full size
1940 US Federal Census — Harford-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01551-00045)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lucile Buck | 16 | Daughter | House Helper | Maryland |
| 2 | Cleo Buck | 12 | Daughter | — | Maryland |
| 3 | Otis Buck | 11 | Son | — | Maryland |
| 4 | Jean Buck | 9 | Daughter | — | Maryland |
| 5 | Deloris Buck | 2 | Daughter | — | Maryland |
| 6 | Wanda Buck | 0 | Daughter | — | Maryland |
| 7 | Fredrick N. Smith | 46 | Head | Farmer | Maryland |
| 8 | Annie L. Smith | 45 | Wife | Housewife | Maryland |
| 9 | Fredrick Smith | 21 | Son | Farm Hand | Maryland |
| 10 | Robert Smith | 20 | Son | Farm Hand | Maryland |
| 11 | Mary Smith | 16 | Daughter | — | Maryland |
| 12 | Betty Smith THIS PERSON | 12 | Daughter | — | Maryland |
| 13 | Catherine Smith | 10 | Daughter | — | Maryland |
| 14 | Margaret Sexton | 44 | Head | Farm Hand | Virginia |
| 15 | Mattie Sexton | 43 | Wife | Housewife | Virginia |
| 16 | Garlan Sexton | 14 | Son | — | Virginia |
| 17 | Pearl Sexton | 12 | Daughter | — | Virginia |
| 18 | May Sexton | 10 | Daughter | — | Virginia |
| 19 | Ethel Sexton | 8 | Daughter | — | Virginia |
| 20 | Dan Sexton | 5 | Son | — | Virginia |
| 21 | Harold Sexton | 3 | Son | — | Maryland |
| 22 | Leonard Levanty | 49 | Head | Farmer | Maryland |
| 23 | Ellen Kapha | 55 | Servant | Housekeeper | Maryland |
| 24 | William Griffith | 39 | Head | Farm Hand | Maryland |
| 25 | Bertha Griffith | 40 | Wife | Housewife | Maryland |
| 26 | Myrtle Griffith | 17 | Daughter | Waitress | Maryland |
| 27 | Catherine Griffith | 10 | Daughter | — | Maryland |
| 28 | Virginia Griffith | 9 | Daughter | — | Maryland |
| 29 | Pattica Griffith | 3 | Daughter | — | Maryland |
| 30 | Charles Ely | 35 | Head | Farm Hand | Maryland |
| 31 | Helen Ely | 35 | Wife | Housewife | Maryland |
| 32 | Elizabeth Ely | 9 | Daughter | — | Maryland |
| 33 | Jesse Ely | 5 | Daughter | — | Maryland |
| 34 | Ida Frey | 65 | Head | Housewife | Maryland |
| 35 | Howard Mackey | 60 | Brother | Farm Hand | Maryland |
| 36 | Herbert Mackey | 19 | Nephew | Farm Hand | Maryland |
| 37 | Samuel Fields | 42 | Head | Farmer | Virginia |
| 38 | Edith Fields | 38 | Wife | Housewife | Virginia |
| 39 | James Fields | 20 | Son | Farm Hand | Virginia |
| 40 | Ruth Fields | 18 | Daughter | — | Virginia |
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)