MR
Mary Richardson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this Mary Richardson across the 1920, 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed) — first a spouse (b.~1898), then head of a 5-person household.
Age 42
b. ~1898
Female
Spouse
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Richardson |
| Given Name | Mary E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Occupation | 0 |
| Industry | 0 |
| Class of Worker | 0 |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | 0 |
| Township / Ward | Baltimore |
| Est. Birth Year | ~1898 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Richardson | Daughter | — | 16 | ~1924 |
| Ruth Richardson | Daughter | — | 14 | ~1926 |
| Daniel Richardson | Son | — | 12 | ~1928 |
| Eugene Richardson | Son | — | 17 | ~1923 |
| Mary Richardson | Spouse | — | 42 | ~1898 |
Census Appearances
1920
Baltimore, Maryland
Other, age 20
Baltimore, Maryland · implied b. ~1900 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Richards |
| Given Name | Mary |
| Relationship to Head | Daughter-in-law |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| 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 |
Spouse, age 31
Baltimore, Maryland · implied b. ~1899 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Richards |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 21 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Spouse, age 42
Baltimore-City-County, Maryland · implied b. ~1898 — 5 household members
| Surname | Richardson |
| Given Name | Mary E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore |
| 1935 Residence (County) | Baltimore City |
| Occupation | 0 |
| Industry | 0 |
| Class of Worker | 0 |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 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 Mary Richardson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Richardson
Spouse · 1940 · age 42 · b. ~1898 · Maryland
★ 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 — 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-t0627-01531-00634)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mary E Richardson THIS PERSON | 42 | Wife | 0 | Maryland |
| 42 | Eugene A Richardson | 17 | Son | Operator | Maryland |
| 43 | Mary V Richardson | 16 | Daughter | 0 | Maryland |
| 44 | Ruth O Richardson | 14 | Daughter | 0 | Maryland |
| 45 | Daniel E Richardson | 12 | Son | 0 | Maryland |
| 46 | William E Shipley | 58 | Head | Ice Man | Maryland |
| 47 | Elizabeth Shipley | 52 | Wife | 0 | Maryland |
| 48 | Martha Shipley | 85 | Mother | 0 | Maryland |
| 49 | John A Handel | 44 | Head | Car Man | Maryland |
| 50 | Clara B Handel | 43 | Wife | 0 | Maryland |
| 51 | Vernon O Handel | 23 | Son | Machine Hand | Maryland |
| 52 | Robert E Knight | 14 | Nephew | 0 | Maryland |
| 53 | Mary H Knight | 32 | Lodger | 0 | Maryland |
| 54 | James P Reems | 38 | Head | 0 | Maryland |
| 55 | Marie G Reems | 39 | Wife | Operator | Maryland |
| 56 | William C Reems | 17 | Daughter | 0 | Maryland |
| 57 | Dorothy C Reems | 15 | Daughter | 0 | Maryland |
| 58 | Edward W Reems | 4 | Son | 0 | Maryland |
| 59 | Harry V Nash | 54 | Head | 0 | Maryland |
| 60 | Florence E Nash | 52 | Wife | 0 | Maryland |
| 61 | Mary A Thee | 13 | Grand Daughter | 0 | Maryland |
| 62 | Herbert H Stein | 39 | Head | 0 | Maryland |
| 63 | Marie E Stein | 38 | Wife | 0 | Maryland |
| 64 | Harry H Stein | 19 | Son | 0 | Maryland |
| 65 | Elmer H Stein | 16 | Son | 0 | Maryland |
| 66 | Marie F Stein | 14 | Daughter | 0 | Maryland |
| 67 | George M Stein | 13 | Son | 0 | Maryland |
| 68 | Melvin W Stein | 11 | Son | 0 | Maryland |
| 69 | Edna M Stein | 8 | Daughter | 0 | Maryland |
| 70 | Joseph Stein | 5 | Son | 0 | Maryland |
| 71 | Richard Stein | 3 | Son | 0 | Maryland |
| 72 | Henrietta S Keith | 53 | Head | 0 | Maryland |
| 73 | Charles H Keith | 23 | Son | Crane Operator | Maryland |
| 74 | Edward W Keith | 20 | Son | Laborer | Maryland |
| 75 | Jane E Keith | 17 | Daughter | 0 | Maryland |
| 76 | James D Jeffries | 40 | Head | Carpenter | Penna |
| 77 | Virginia E Jeffries | 38 | Wife | 0 | Maryland |
| 78 | James E Jeffries | 18 | Son | Stenciling | Maryland |
| 79 | Gladys V Jeffries | 14 | Daughter | 0 | Maryland |
| 80 | Ethel M Jeffries | 12 | Daughter | 0 | 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)