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Mary Barber — 1940 US Census Record
Linked across censuses1940 United States Federal Census · District-Of-Columbia-County, District of Columbia
Our Model Tree links this Mary Barber across the 1930 and 1940 US Censuses in District-Of-Columbia-County, District of Columbia (XGBoost, ~Confirmed) — first a spouse (b.~1907), then head of a 11-person household.
Age 33
b. ~1907
Female
Spouse
Born: Virginia
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | District-Of-Columbia-County, District of Columbia |
| Surname | Barber |
| Given Name | Mary G. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Virginia |
| 1935 Residence (City) | Washington |
| 1935 Residence (County) | District Of Columbia |
| Additional Details | |
| Highest Grade | H 7 |
| 1935 Residence | Same place |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
| Township / Ward | Washington |
| Est. Birth Year | ~1907 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Barber | Daughter | — | 9 | ~1931 |
| Pearl Barber | Daughter | — | 7 | ~1933 |
| Phyllis Barber | Daughter | — | ~1940 | |
| Burton Barber | Head | — | 39 | ~1901 |
| Cornelia Rolls | Other | — | 50 | ~1890 |
| Richard Barber | Son | — | 12 | ~1928 |
| William Barber | Son | — | 10 | ~1930 |
| Robert Barber | Son | — | 2 | ~1938 |
| Joseph Barber | Son | — | 13 | ~1927 |
| Burton Barber | Son | — | 4 | ~1936 |
| Mary Barber | Spouse | — | 33 | ~1907 |
Census Appearances
1930
Washington, District …
Other, age 25
Washington, District of Columbia · implied b. ~1905 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Barber |
| Given Name | Mary |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | Black |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Virginia |
| Age at First Marriage | 23 |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Occupation | Servant |
| Industry | Hotel |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
1940
District-Of-Columbia-County, District …
Spouse, age 33
District-Of-Columbia-County, District of Columbia · implied b. ~1907 — 11 household members
| Surname | Barber |
| Given Name | Mary G. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Virginia |
| 1935 Residence (City) | Washington |
| 1935 Residence (County) | District Of Columbia |
| Highest Grade | H 7 |
| 1935 Residence | Same place |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
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 Barber across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Barber
Spouse · 1940 · age 33 · b. ~1907 · District of Columbia
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — District-Of-Columbia-County, District of Columbia
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1940 US Federal Census — District-Of-Columbia-County, District of Columbia
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00572-00135)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | David Dixon | 1 | Grandson | — | District of Columbia |
| 2 | Carrie Belle Johnson | 45 | Head | Waitress | South Carolina |
| 3 | Cleo Allen | 24 | Lodger | Caretaker | New Jersey |
| 4 | Jesse G. Twyman | 53 | Head | Servant | Virginia |
| 5 | Rachel Twyman | 50 | Wife | Auto Washer | Virginia |
| 6 | Jack Undereen | 22 | Lodger | Chauffeur | Virginia |
| 7 | Otis Jackson | 34 | Head | Labourer | Georgia |
| 8 | Mary White | 52 | Lodger | Maid | Virginia |
| 9 | Maggie G. Barry | 34 | Lodger | — | Virginia |
| 10 | Peter Jr. Barry | 15 | Lodger | — | District of Columbia |
| 11 | Roland Preston | 35 | Head | Labourer | Virginia |
| 12 | Lola Preston | 25 | Wife | — | Virginia |
| 13 | Stewart Jr. Preston | 4 | Son | — | District of Columbia |
| 14 | Roland Preston | 3 | Son | — | District of Columbia |
| 15 | Mary Marrow | 37 | Lodger | — | North Carolina |
| 16 | Essie Wells | 33 | Lodger | — | — |
| 17 | Louis Valencia | 29 | Head | Truck Driver | District of Columbia |
| 18 | Thelma Valencia | 28 | Wife | Servant | West Virginia |
| 19 | Susan Fortune | 48 | Lodger | Servant | Virginia |
| 20 | Burton Barber | 39 | Head | Laborer | Maryland |
| 21 | Mary G. Barber THIS PERSON | 33 | Wife | — | Virginia |
| 22 | Joseph Barber | 13 | Son | — | District of Columbia |
| 23 | Richard Barber | 12 | Son | — | District of Columbia |
| 24 | William Barber | 10 | Son | — | District of Columbia |
| 25 | Mary Barber | 9 | Daughter | — | District of Columbia |
| 26 | Pearl Barber | 7 | Daughter | — | District of Columbia |
| 27 | Burton Jr. Barber | 4 | Son | — | District of Columbia |
| 28 | Robert Barber | 2 | Son | — | District of Columbia |
| 29 | Phyllis Barber | 0 | Daughter | — | District of Columbia |
| 30 | Cornelia Rolls | 50 | Mother-in-law | — | Virginia |
| 31 | Raymond Duncan | 35 | Head | Waiter | Pennsylvania |
| 32 | Mary Duncan | 34 | Wife | Servant | Virginia |
| 33 | Robert Duncan | 12 | Son | — | Pennsylvania |
| 34 | Richard Lomax | 43 | Lodger | Gardener | Virginia |
| 35 | Louis Wood | 32 | Lodger | Waiter | Virginia |
| 36 | Ida Wood | 26 | Lodger | Servant | Virginia |
| 37 | Betty Wood | 15 | Lodger | — | Virginia |
| 38 | John Harris | 47 | Head | Skilled Labourer | Virginia |
| 39 | Edna G. Harris | 33 | Wife | — | Virginia |
| 40 | Doris Harris | 10 | Daughter | — | District of Columbia |
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)