MH
Mary Harris — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this Mary Harris across the 1920, 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed) — first a head (b.~1890), then head of a 5-person household.
Age 50
b. ~1890
Female
Head
Born: Maryland
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Harris |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | Black |
| Age | 50 |
| Marital Status | Widowed |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same Place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1890 |
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 Harris | Daughter | — | 12 | ~1928 |
| Mary Harris | Head | — | 50 | ~1890 |
| Walter Stokes | Other | — | 34 | ~1906 |
| Earl Harris | Son | — | 22 | ~1918 |
| James Harris | Son | — | 16 | ~1924 |
Census Appearances
1920
Baltimore, Maryland
Head, age 26
Baltimore, Maryland · implied b. ~1894 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harris |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | Black |
| Age | 26 |
| Marital Status | Widowed |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Servant |
| Industry | Private Family |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Head, age 39
Baltimore, Maryland · implied b. ~1891 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harris |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | Black |
| Age | 39 |
| Marital Status | Widowed |
| Birthplace | Maryland |
| Age at First Marriage | 34 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Cook |
| Industry | Restaurant |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 40.00 |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Head, age 50
Baltimore-City-County, Maryland · implied b. ~1890 — 5 household members
| Surname | Harris |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | Black |
| Age | 50 |
| Marital Status | Widowed |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Class of Worker | 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 Harris across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Harris
Head · 1940 · age 50 · b. ~1890 · Maryland
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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 — 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-t0627-01530-00153)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Annie May Brooks | 9 | Daughter | — | Maryland |
| 2 | Charles Brooks | 16 | Son | — | Maryland |
| 3 | Alvester Brooks | 14 | Son | — | Maryland |
| 4 | Walter Stanley | 22 | Head | Builder | North Carolina |
| 5 | Beulah Stanley | 20 | Wife | — | North Carolina |
| 6 | Albert S. Brooks | 35 | Lodger | Laborer | Maryland |
| 7 | Theodore Brooks | 32 | Lodger | Laborer | Maryland |
| 8 | Calvin Norwood | 38 | Head | Laborer | Maryland |
| 9 | Deloris Norwood | 29 | Wife | — | Maryland |
| 10 | Minnie Easton | 41 | Head | Maid | Maryland |
| 11 | Myrene Easton | 19 | Daughter | — | Maryland |
| 12 | Annie Easton | 14 | Daughter | — | Maryland |
| 13 | Thelma Easton | 11 | Daughter | — | Maryland |
| 14 | William Johnson | 46 | Head | Laborer | North Carolina |
| 15 | Florence Johnson | 12 | Daughter | — | Maryland |
| 16 | Irene Johnson | 15 | Daughter | — | Maryland |
| 17 | Bernice Johnson | 5 | Daughter | — | Maryland |
| 18 | James Hamilton | 19 | Grand-son | — | Maryland |
| 19 | Roland Douglas | 39 | Head | Laborer | Maryland |
| 20 | Florence Douglas | 25 | Wife | — | Maryland |
| 21 | William Douglas | 10 | Son | — | Maryland |
| 22 | Anna Robinson | 65 | Aunt | — | Maryland |
| 23 | Bertha Paul | 39 | Head | — | Maryland |
| 24 | Mary Paul | 19 | Daughter | — | South Carolina |
| 25 | Sylvester Wilson | 36 | Lodger | Laborer | Virginia |
| 26 | Thomas Smith | 24 | Head | Teamster | Maryland |
| 27 | Kate Smith | 23 | Wife | — | Maryland |
| 28 | Ernestine Smith | 17 | Daughter | — | Maryland |
| 29 | Henrietta Smith | 25 | Daughter | — | Maryland |
| 30 | Mary Harris THIS PERSON | 50 | Head | — | Maryland |
| 31 | Earl Harris | 22 | Son | Laborer | Maryland |
| 32 | James E. Harris | 16 | Son | — | Maryland |
| 33 | Mary Ellen Harris | 12 | Daughter | — | Maryland |
| 34 | Walter Stokes | 34 | Lodger | Stevedore | Maryland |
| 35 | William Watts | 42 | Head | Laborer | Virginia |
| 36 | Sarah Watts | 37 | Wife | — | North Carolina |
| 37 | Archie Watkins | 45 | Head | Chipper | Maryland |
| 38 | Henrietta Watkins | 42 | Wife | — | Maryland |
| 39 | William Watkins | 11 | Son | — | Maryland |
| 40 | Edgar Moore | 55 | Lodger | Carpenter | 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)