MH
Mary Hall — 1940 US Census Record
Linked across censuses1940 United States Federal Census · District-Of-Columbia-County, District of Columbia
Our Model Tree links this Mary Hall across the 1920, 1930 and 1940 US Censuses in District-Of-Columbia-County, District of Columbia (XGBoost, ~Confirmed) — first a spouse (b.~1885), then head of a 4-person household.
Age 55
b. ~1885
Female
Spouse
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | District-Of-Columbia-County, District of Columbia |
| Surname | Hall |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Washington D.C. |
| 1935 Residence (County) | District Of Columbia |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Same home |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Washington Dc |
| Est. Birth Year | ~1885 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Grace Hall | Daughter | — | 13 | ~1927 |
| Thomas Hall | Head | — | 57 | ~1883 |
| Joseph Hall | Son | — | 17 | ~1923 |
| Mary Hall | Spouse | — | 55 | ~1885 |
Census Appearances
1920
Washington, District …
Spouse, age 33
Washington, District of Columbia · implied b. ~1887 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hills |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
District Of …
Spouse, age 42
District Of Columbia, District of Columbia · implied b. ~1888 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hall |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 19 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
District-Of-Columbia-County, District …
Spouse, age 55
District-Of-Columbia-County, District of Columbia · implied b. ~1885 — 4 household members
| Surname | Hall |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Washington D.C. |
| 1935 Residence (County) | District Of Columbia |
| Highest Grade | No 6 |
| 1935 Residence | Same home |
| 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 Hall across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Hall
Spouse · 1940 · age 55 · b. ~1885 · District of Columbia
★ 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 — District-Of-Columbia-County, District of Columbia
Open full size
1940 US Federal Census — District-Of-Columbia-County, District of Columbia
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00570-00492)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lola C Richards | 41 | Head | Printer | Virginia |
| 2 | Catherine Richards | 19 | Daughter | Operator | Virginia |
| 3 | John Richards | 18 | Son | Messenger | D.C. |
| 4 | Ann Richards | 16 | Daughter | — | D.C. |
| 5 | Alice Richards | 13 | Daughter | — | D.C. |
| 6 | Ruth Richards | 12 | Daughter | — | Virginia |
| 7 | Mary Richards | 10 | Daughter | — | Virginia |
| 8 | Jane Richards | 7 | Daughter | — | Virginia |
| 9 | Felix Richards | 5 | Son | — | Virginia |
| 10 | Hubert E Mills | 41 | Head | Manager | Virginia |
| 11 | Catherine A Mills | 41 | Wife | Assistant Manager | Maryland |
| 12 | Lilburn Brently | 42 | Head | Watchman | D.C. |
| 13 | Beatrice Brently | 35 | Wife | Manager | Virginia |
| 14 | Beatrice Brently | 14 | Daughter | — | New York |
| 15 | Edna Yates | 56 | Head | New Worker | Massachusetts |
| 16 | Martha Yates | 24 | Daughter | Clerk | D.C. |
| 17 | Martha Rush | 5 | Granddaughter | — | D.C. |
| 18 | Lafayette M Nye | 63 | Head | Clerk | Pennsylvania |
| 19 | Stella B Nye | 61 | Wife | — | Pennsylvania |
| 20 | George Loury | 57 | Head | Plate Printer | D.C. |
| 21 | Theodosia Loury | 55 | Wife | — | D.C. |
| 22 | Theodosia G Loury | 28 | Daughter | Stenographer | D.C. |
| 23 | Thomas H Hall | 57 | Head | Machinist | Virginia |
| 24 | Mary Hall THIS PERSON | 55 | Wife | — | Maryland |
| 25 | Joseph Hall | 17 | Son | — | D.C. |
| 26 | Grace Hall | 13 | Daughter | — | D.C. |
| 27 | John Cavanagh | 62 | Head | — | D.C. |
| 28 | Miriam Cavanagh | 35 | Daughter | Clerk | D.C. |
| 29 | Walter Cavanagh | 32 | Son | Salesman | New York |
| 30 | John Cavanagh | 29 | Son | Delivery Man | D.C. |
| 31 | Arthur Barrell | 44 | Head | Clerk | Indiana |
| 32 | Elizabeth Barrell | 64 | Mother | — | Indiana |
| 33 | Lawrence K Barrell | 40 | Brother | — | Indiana |
| 34 | William L Ash | 64 | Lodger | — | Indiana |
| 35 | William H Marsh | 79 | Head | — | D.C. |
| 36 | Oscar S Bebout | 44 | Head | — | Massachusetts |
| 37 | Beatrice Bebout | 19 | Daughter | — | Pennsylvania |
| 38 | Clyde B Folkenstein | 55 | Lodger | Project | Virginia |
| 39 | Tyler Webb | 31 | Head | Bar Tender | Virginia |
| 40 | Marie Webb | 30 | Wife | — | Maryland |
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)