BT
Barbara Thompson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this Barbara Thompson across the 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 7-person household.
Age 14
b. ~1926
Female
Daughter
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Thompson |
| Given Name | Barbara |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1926 |
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 Barbara | Age | Birth yr |
|---|---|---|---|---|
| Albert Thompson | Head | — | 46 | ~1894 |
| Albert Thompson | Son | — | 16 | ~1924 |
| Joseph Thompson | Son | — | 21 | ~1919 |
| Barbara Thompson | Daughter | — | 14 | ~1926 |
| Edwina Thompson | Daughter | — | 10 | ~1930 |
| Edwina Thompson | Spouse | — | 43 | ~1897 |
| Katharine Thompson | Daughter | — | 22 | ~1918 |
Census Appearances
1930
Baltimore, Maryland
Daughter, age 4
Baltimore, Maryland · implied b. ~1926 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Barbara |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| 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 14
Baltimore-City-County, Maryland · implied b. ~1926 — 7 household members
| Surname | Thompson |
| Given Name | Barbara |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Class of Worker | 0 |
| Highest Grade | H 2 |
| 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 Barbara Thompson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Barbara Thompson
Daughter · 1940 · age 14 · b. ~1926 · Maryland
★ You are viewing this record
Sibling
Joseph Thompson
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Katharine Thompson
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Albert Thompson
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edwina Thompson
Sibling · 1940 · age 10
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
40 people indexed on this census page (nara:1940:m-t0627-01539-00800)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Jonathan W. Pine | 26 | Son | Marine Insurance | Maryland |
| 42 | Joseph R. Stephens | 23 | Head | Concessionaire | Ohio |
| 43 | Frances P. Stephens | 24 | Wife | — | Maryland |
| 44 | Esther Hunt | 65 | Head | — | Maryland |
| 45 | Charles Hunt | 67 | Brother | Importing Merchant | Maryland |
| 46 | Lee Howard Hunt | 60 | Brother | Housework | Maryland |
| 47 | Caroline Guillemet | 72 | Head | — | Louisiana |
| 48 | A. J. Limerick | 62 | Daughter | — | New Orleans |
| 49 | Richard T. Loring | 40 | Head | Clergyman | Massachusetts |
| 50 | Helen Loring | 36 | Wife | — | Columbia |
| 51 | Richard T. Loring | 10 | Son | — | Massachusetts |
| 52 | Christopher Loring | 7 | Son | — | Massachusetts |
| 53 | Timothy Loring | 4 | Son | — | Massachusetts |
| 54 | Helen Thomas | 39 | Maid | Housekeeper | Maryland |
| 55 | Charles R. Edwards | 52 | Head | Medical Doctor | West Virginia |
| 56 | Ruth Edwards | 50 | Wife | — | Maryland |
| 57 | Dorothy Edwards | 20 | Daughter | — | Maryland |
| 58 | Winifred Edwards | 18 | Daughter | — | Maryland |
| 59 | Houston S. Everett | 39 | Head | Physician | North Carolina |
| 60 | Excie R. Everett | 38 | Wife | — | Virginia |
| 61 | Excie Everett | 5 | Daughter | — | Maryland |
| 62 | Spencer Everett | 1 | Son | — | Maryland |
| 63 | Martha Everett | 0 | Daughter | — | Maryland |
| 64 | Missouri Parker | 22 | Maid | Child'S Nurse | Virginia |
| 65 | John L. Swope | 63 | Head | Manager | Pennsylvania |
| 66 | Edith C. Swope | 61 | Wife | — | Maryland |
| 67 | Cary B. Swope | 25 | Son | Salesman | Maryland |
| 68 | Albert E. Thompson | 46 | Head | Executive | Maryland |
| 69 | Edwina H. Thompson | 43 | Wife | — | Maryland |
| 70 | Katharine E. Thompson | 22 | Daughter | — | Maryland |
| 71 | Joseph H. Thompson | 21 | Son | — | Maryland |
| 72 | Albert E. Jr. Thompson | 16 | Son | Assistant | Maryland |
| 73 | Barbara Thompson THIS PERSON | 14 | Daughter | — | Maryland |
| 74 | Edwina Thompson | 10 | Daughter | — | Maryland |
| 75 | Charles De Kendrick | 27 | Head | Lawyer | Maryland |
| 76 | Elizabeth De Kendrick | 25 | Wife | — | Pennsylvania |
| 77 | Elizabeth De Kendrick | 1 | Daughter | — | Maryland |
| 78 | Mabel Johnson | 24 | Maid | Housekeeper | North Carolina |
| 79 | John D. Costlow | 56 | Head | Salesman | Ohio |
| 80 | Kathryn Costlow | 47 | Wife | — | Pennsylvania |
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)