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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.~1887), then head of a 8-person household.
Age 53
b. ~1887
Female
Head
Born: Maryland
Single
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 | 53 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore city |
| Additional Details | |
| Occupation | Cook |
| Industry | Boarding House |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 720 |
| Highest Grade | No 3 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Cook |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1887 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Anita Covington | Daughter | — | 3 | ~1937 |
| Loretta Covington | Daughter | — | 2 | ~1938 |
| Jacque Covington | Daughter | — | 7 | ~1933 |
| Mary Harris | Head | — | 53 | ~1887 |
| Roland Covington | Other | — | 27 | ~1913 |
| Earnest Thompson | Other | — | 24 | ~1916 |
| Louis Covington | Son | — | 4 | ~1936 |
| Hilda Covington | Spouse | — | 25 | ~1915 |
Census Appearances
1920
Baltimore, Maryland
Head, age 35
Baltimore, Maryland · implied b. ~1885 — 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 | 35 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Operator |
| Industry | Clothing |
| 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 45
Baltimore, Maryland · implied b. ~1885
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | Harris |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | Black |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 20 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 16 |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Head, age 53
Baltimore-City-County, Maryland · implied b. ~1887 — 8 household members
| Surname | Harris |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | Black |
| Age | 53 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore city |
| Occupation | Cook |
| Industry | Boarding House |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 720 |
| Highest Grade | No 3 |
| 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 53 · b. ~1887 · 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-t0627-01529-00253)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Jennie Richardson | 61 | Lodger | — | Maryland |
| 2 | Alice Robinson | 52 | Lodger | Cook | Maryland |
| 3 | Mae Hawkins | 45 | Lodger | Cook | Maryland |
| 4 | Lee Allen | 59 | Lodger | Janitor | Georgia |
| 5 | Mary Harris THIS PERSON | 53 | Head | Cook | Maryland |
| 6 | Earnest Thompson | 24 | Nephew | Porter | Maryland |
| 7 | Roland Covington | 27 | Lodger | Proprietor | Maryland |
| 8 | Hilda M Covington | 25 | Wife | — | Maryland |
| 9 | Jacque W Covington | 7 | Daughter | — | Maryland |
| 10 | Louis M Covington | 4 | Son | — | Maryland |
| 11 | Anita M Covington | 3 | Daughter | — | Maryland |
| 12 | Loretta G Covington | 2 | Daughter | — | Maryland |
| 13 | Bertha D Hardman | 40 | Head | Maid | Maryland |
| 14 | Gladys M Hardman | 17 | Daughter | — | Maryland |
| 15 | Elizabeth A Matthews | 82 | Mother-in-law | — | Maryland |
| 16 | John T Bryan | 48 | Lodger | — | Maryland |
| 17 | Joseph Smith | 48 | Lodger | Laborer | Pennsylvania |
| 18 | Carrie Smith | 45 | Lodger | — | Maryland |
| 19 | Constance E Smith | 15 | Lodger | — | Maryland |
| 20 | Mary A Booth | 60 | Head | — | Maryland |
| 21 | Beatrice M Booth | 33 | Daughter | Matron W.P.A. | Maryland |
| 22 | Russell Booth | 14 | Grandson | — | Maryland |
| 23 | Charles T Randolph | 44 | Head | Truck Driver | Virginia |
| 24 | Ethel Hamilton | 32 | Lodger | — | Alabama |
| 25 | Joseph Perry | 37 | Lodger | Truck Driver | North Carolina |
| 26 | Harriet Perry | 23 | Lodger | Housemaid | North Carolina |
| 27 | Clayton Burley | 28 | Lodger | Cook | Maryland |
| 28 | Earnest Brown | 31 | Lodger | Cook | North Carolina |
| 29 | Lavania Robinson | 37 | Head | — | Maryland |
| 30 | Thomas J De Coursey | 53 | Lodger | — | Maryland |
| 31 | Eugene Scott | 33 | Lodger | Bar Tender | Maryland |
| 32 | Louis Pinkney | 36 | Lodger | Cook | North Carolina |
| 33 | Louise Mccann | 32 | Lodger | Maid | Maryland |
| 34 | Clara Ardent | 57 | Lodger | Laundress | Maryland |
| 35 | Louis Sheen | 31 | Head | Laborer | South Carolina |
| 36 | Eloise M Sheen | 27 | Wife | — | New York |
| 37 | Doris Sheen | 12 | Daughter | — | Maryland |
| 38 | Louis J Sheen | 10 | Son | — | Maryland |
| 39 | Shirley Sheen | 9 | Daughter | — | Maryland |
| 40 | Raymond Sheen | 7 | Son | — | 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)