MH
Mary Harris — 1940 US Census Record
Model Tree available1940 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), with identified parents William & William — first a spouse (b.~1916), then head of a 3-person household.
Age 24
b. ~1916
Female
Spouse
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Harris |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | BALTIMORE CITY |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Industry | H |
| Class of Worker | 0 |
| Hours Worked | 5 |
| Highest Grade | No 5 |
| 1935 Residence | Same Place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1916 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Bernard Harris | Head | — | 23 | ~1917 |
| Jr Harris | Son | — | 3 | ~1937 |
| Mary Harris | Spouse | — | 24 | ~1916 |
Census Appearances
Daughter, age 5
None, Maryland · implied b. ~1915 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harris |
| Given Name | Marie E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read | No |
| Can Write | No |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Daughter, age 15
Baltimore, Maryland · implied b. ~1915 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harris |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Maryland |
| 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 24
Baltimore-City-County, Maryland · implied b. ~1916 — 3 household members
| Surname | Harris |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | BALTIMORE CITY |
| 1935 Residence (County) | Baltimore City |
| Industry | H |
| Class of Worker | 0 |
| Hours Worked | 5 |
| Highest Grade | No 5 |
| 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 3 locations, using XGBoost record linkage. Identified parents: father William Harris (~0.92 confidence) and father William Harris (~0.92 confidence) and mother Margaret Harris (~0.92 confidence) and mother Isabelle Harris (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Harris
b. ~1879
Source father
● Household
· direct · ~0.92
Father
William Harris
b. ~1894
Source father
● Household
· direct · ~0.92
Mother
Margaret Harris
b. ~1880
Source mother
● Household
· direct · ~0.92
Mother
Isabelle Harris
b. ~1894
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Harris
Spouse · 1940 · age 24 · b. ~1916 · 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
37 people indexed on this census page (nara:1940:m-t0627-01531-00566)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Katherine Pottgeiser | 44 | Head | — | Germany |
| 42 | Rebecca Jessup | 77 | Head | — | Maryland |
| 43 | Ida Jessup | 59 | Sister | — | Maryland |
| 44 | Howard Spukites | 30 | Head | Painter | Maryland |
| 45 | Helen Spukites | 29 | Wife | — | Maryland |
| 46 | Doris Spukites | 9 | Daughter | — | Maryland |
| 47 | Lorraine Spukites | 7 | Daughter | — | Maryland |
| 48 | Joseph Stricker | 68 | Head | Stone Mason | Maryland |
| 49 | Emma Stricker | 61 | Wife | — | Maryland |
| 50 | Parker Niser | 74 | Head | Stone Mason | Maryland |
| 51 | Anna Niser | 31 | Wife | — | Maryland |
| 52 | Anna Niser | 15 | Daughter | — | Maryland |
| 53 | Otis Poddicord | 19 | Lodger | Truck Driver | Maryland |
| 54 | May Tyler | 42 | Head | — | Maryland |
| 55 | Harry Tyler | 25 | Son | Truck Driver | Maryland |
| 56 | Francis Seto | 26 | Son-in-law | Seaman | Hawaii |
| 57 | Eva Seto | 20 | Daughter | — | Maryland |
| 58 | Walter Seto | 1 | Grandson | — | Maryland |
| 59 | Alexander Duncan | 40 | Lodger | Drigger | Massachusetts |
| 60 | Jenny Geise | 62 | Lodger | — | Maryland |
| 61 | Grace Alt | 25 | Lodger | Dipper | Maryland |
| 62 | Walter Hawkins | 35 | Head | Pipe Fitter | Maryland |
| 63 | Addie Hawkins | 39 | Wife | — | Vermont |
| 64 | Irene Hawkins | 8 | Daughter | — | Maryland |
| 65 | Joan Hee | 7 | Daughter | — | Maryland |
| 66 | Bernard Harris | 23 | Head | Huxter | Maryland |
| 67 | Mary Harris THIS PERSON | 24 | Wife | — | Maryland |
| 68 | Jr Bernard Harris | 3 | Son | — | Maryland |
| 70 | Laura James | 65 | Head | — | Maryland |
| 71 | Walter Shelton | 35 | Head | Plummer'S Helper | Maryland |
| 72 | Venerina Shelton | 33 | Wife | — | Maryland |
| 73 | Laura Criswell | 74 | Head | — | Maryland |
| 76 | Harry J. Brave | 57 | Head | Manager | Maryland |
| 77 | George Reuschling | 37 | Head | Checker | Maryland |
| 78 | Katherine Reuschling | 35 | Wife | — | Maryland |
| 79 | Mildred Reuschling | 17 | Daughter | — | Maryland |
| 80 | Clifford Apple | 37 | Head | Machinist | Maryland |
Related Census Records
Pedigree Summary
Mary
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)