MH
Mary Harris — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Anne-Arundel-County, Maryland
Our Model Tree links this Mary Harris across the 1920, 1930 and 1940 US Censuses in Anne-Arundel-County, Maryland (XGBoost, ~Confirmed) — first a spouse (b.~1891), then head of a 5-person household.
Age 49
b. ~1891
Female
Spouse
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Anne-Arundel-County, Maryland |
| Surname | Harris |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Election District 1 |
| 1935 Residence (County) | Anne Arundel |
| Additional Details | |
| Highest Grade | No 2 |
| 1935 Residence | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Election District 1 |
| Est. Birth Year | ~1891 |
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 |
|---|---|---|---|---|
| Ruth Watkins | Daughter | — | 18 | ~1922 |
| John Harris | Head | — | 49 | ~1891 |
| Murray Watkins | Other | — | 24 | ~1916 |
| Alex Harris | Son | — | 13 | ~1927 |
| Mary Harris | Spouse | — | 49 | ~1891 |
Census Appearances
1920
Anne Arundel, …
Spouse, age 26
Anne Arundel, Maryland · implied b. ~1894 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harris |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 26 |
| Marital Status | Married |
| 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 |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Anne Arundel, …
Spouse, age 37
Anne Arundel, Maryland · implied b. ~1893 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harris |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 27 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Servant |
| Industry | Private Family |
| Class of Worker | W |
| Can Read/Write | No |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Anne-Arundel-County, Maryland
Spouse, age 49
Anne-Arundel-County, Maryland · implied b. ~1891 — 5 household members
| Surname | Harris |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Election District 1 |
| 1935 Residence (County) | Anne Arundel |
| Highest Grade | No 2 |
| 1935 Residence | Maryland |
| 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.
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This person
Anchor record
Mary Harris
Spouse · 1940 · age 49 · b. ~1891 · 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 — Anne-Arundel-County, Maryland
Open full size
1940 US Federal Census — Anne-Arundel-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01501-00008)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Alberta Randall | 6 | Daughter | — | Maryland |
| 2 | Irene Randall | 6 | Daughter | — | Maryland |
| 3 | James Randall | 3 | Son | — | Maryland |
| 4 | Thomas Collison | 52 | Head | Manager | Maryland |
| 5 | Ella Collison | 76 | Wife | — | Maryland |
| 6 | Paul Collison | 19 | Son | Attendant | Maryland |
| 7 | Reginald Collison | 17 | Son | — | Maryland |
| 8 | Thomas Iii Collison | 25 | Head | Carpenter | Maryland |
| 9 | Eleanor Collison | 25 | Wife | — | Maryland |
| 10 | Thomas Iv Collison | 2 | Son | — | Maryland |
| 11 | Marvin Hardesty | 36 | Head | Bus Driver | Maryland |
| 12 | Ella Hardesty | 33 | Wife | — | Maryland |
| 13 | Marvin Hardesty | 14 | Son | — | Maryland |
| 14 | Georgetta Hardesty | 12 | Daughter | — | Maryland |
| 15 | Carroll Hardesty | 9 | Daughter | — | Maryland |
| 16 | Joy Ann Hardesty | 3 | Daughter | — | Maryland |
| 17 | Peggy Hardesty | 1 | Daughter | — | Maryland |
| 18 | Rudolph Leitch | 46 | Head | Carpenter | Maryland |
| 19 | Myrtle Leitch | 41 | Wife | Saleslady | Maryland |
| 20 | Thomas Leitch | 13 | Son | — | Maryland |
| 21 | Charles Leitch | 12 | Son | — | Maryland |
| 22 | Carlie Buland | 42 | Head | Manager | Mississippi |
| 23 | Dona Buland | 40 | Wife | — | Mississippi |
| 24 | George Spahn | 75 | Lodger | Caretaker | Maryland |
| 25 | Weeks Sherbert | 55 | Head | Operator | Maryland |
| 26 | Annie Sherbert | 49 | Wife | — | Maryland |
| 27 | Ann Sherbert | 27 | Daughter | Stenographer | Maryland |
| 28 | Adam Collie | 36 | Son-in-law | Poultry Dealer | Scotland |
| 29 | Eleanor Collie | 30 | Daughter | Pantry Supervisor | Maryland |
| 30 | Robert Collie | 6 | Grandson | — | Maryland |
| 31 | David Gassaway | 61 | Head | Carpenter | Maryland |
| 32 | Daniel Colbert | 23 | Friend | General Helper | Maryland |
| 33 | Agnes Colbert | 27 | Friend | Maid | Maryland |
| 34 | Michael Colbert | 7 | Daughter | — | Maryland |
| 35 | Oscar Colbert | 5 | Son | — | Maryland |
| 36 | John Harris | 49 | Head | General Helper | Maryland |
| 37 | Mary Harris THIS PERSON | 49 | Wife | — | Maryland |
| 38 | Alex Harris | 13 | Son | — | Maryland |
| 39 | Murray Watkins | 24 | Son-in-law | General Helper | Maryland |
| 40 | Ruth Watkins | 18 | Daughter | — | 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)