MH
Marie Harris — 1940 US Census Record
Model Tree available1940 United States Federal Census · Calvert-County, Maryland
Our Model Tree links this Marie Harris across the 1920, 1930 and 1940 US Censuses in Calvert-County, Maryland (XGBoost, ~Confirmed), with identified parents Sam & Samuel — first a daughter (b.~1909), then head of a 7-person household.
Age 31
b. ~1909
Female
Daughter
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Calvert-County, Maryland |
| Surname | Harris |
| Given Name | Marie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | 2nd Election District |
| 1935 Residence (County) | Calvert |
| Additional Details | |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | No 5 |
| 1935 Residence | Same house |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | 2Nd Election District |
| Est. Birth Year | ~1909 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Marie | Age | Birth yr |
|---|---|---|---|---|
| Marguerite Harris | Other | — | 5 | ~1935 |
| Thomas Harris | Other | — | 10 | ~1930 |
| Paul Harris | Son | — | 17 | ~1923 |
| Ford Harris | Son | — | 20 | ~1920 |
| Samuel Harris | Head | — | 64 | ~1876 |
| Marie Harris | Daughter | — | 31 | ~1909 |
| Bernice Harris | Spouse | — | 55 | ~1885 |
Census Appearances
1920
Calvert, Maryland
Daughter, age 10
Calvert, Maryland · implied b. ~1910 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harris |
| Given Name | Marie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Md |
| Mother's Birthplace | Md |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Calvert, Maryland
Daughter, age 21
Calvert, Maryland · implied b. ~1909 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harris |
| Given Name | Marie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 21 |
| 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
Calvert-County, Maryland
Daughter, age 31
Calvert-County, Maryland · implied b. ~1909 — 7 household members
| Surname | Harris |
| Given Name | Marie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | 2nd Election District |
| 1935 Residence (County) | Calvert |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | No 5 |
| 1935 Residence | Same house |
| 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 Marie Harris across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Sam Harris (~0.92 confidence) and father Samuel Harris (~0.92 confidence) and mother Bernice Harris (~0.92 confidence) and mother Deanna Harris (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Sam Harris
b. ~1878
Source father
● Household
· direct · ~0.92
Father
Samuel Harris
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Bernice Harris
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Deanna Harris
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Marie Harris
Daughter · 1940 · age 31 · b. ~1909 · Maryland
★ You are viewing this record
Sibling
Paul Harris
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ford Harris
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Calvert-County, Maryland
Open full size
1940 US Federal Census — Calvert-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01543-00238)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Jesse Plater | 17 | Son | Laborer | Maryland |
| 2 | Mary R Plater | 15 | Daughter | — | Maryland |
| 3 | Doris Plater | 12 | Daughter | — | Maryland |
| 4 | Samuel R Harris | 64 | Head | Farmer | Maryland |
| 5 | Bernice Harris | 55 | Wife | — | Maryland |
| 6 | Marie Harris THIS PERSON | 31 | Daughter | — | Maryland |
| 7 | Ford Harris | 20 | Son | Helper | Maryland |
| 8 | Paul Harris | 17 | Son | Helper | Maryland |
| 9 | Thomas Harris | 10 | Grand-son | — | Maryland |
| 10 | Marguerite Harris | 5 | Grand-daughter | — | Maryland |
| 11 | Graham Brown | 28 | Head | Helper | Maryland |
| 12 | Alice Brown | 24 | Wife | — | Maryland |
| 13 | John H Smith | 34 | Head | Farmer | Maryland |
| 14 | Elsie Smith | 34 | Wife | — | Maryland |
| 15 | Calvert Smith | 19 | Son | Helper | Maryland |
| 16 | Clarence Smith | 14 | Son | — | Maryland |
| 17 | Hazel Smith | 12 | Daughter | — | Maryland |
| 18 | Charles Smith | 7 | Son | — | Maryland |
| 19 | Imogene Smith | 5 | Daughter | — | Maryland |
| 20 | John H Jr Smith | 4 | Son | — | Maryland |
| 21 | Joseph Joseph | 64 | Head | 55 | Maryland |
| 22 | Frances Joseph | 58 | Wife | 0 | Maryland |
| 23 | Albert Joseph | 22 | Son | 55 | Maryland |
| 24 | Jane Joseph | 18 | Daughter | 0 | Maryland |
| 25 | Jerry Joseph | 21 | Son | 50 | Maryland |
| 26 | Gertie Joseph | 19 | Daughter | 40 | Maryland |
| 27 | Emma Joseph | 4 | Grand-daughter | 0 | Maryland |
| 28 | Robert Holland | 32 | Head | 60 | Maryland |
| 29 | Ruth Holland | 27 | Wife | 0 | Maryland |
| 30 | Phyllis Holland | 8 | Daughter | 0 | Maryland |
| 31 | James G Holland | 6 | Son | 0 | Maryland |
| 32 | Mabel L Holland | 4 | Daughter | 0 | Maryland |
| 33 | Morris W Holland | 2 | Son | 0 | Maryland |
| 34 | Vivian M Holland | 1 | Daughter | 0 | Maryland |
| 35 | Henry Holland | 40 | Head | 60 | Maryland |
| 36 | Isabelle Holland | 38 | Wife | 0 | Maryland |
| 37 | Thomas Holland | 20 | Son | 65 | Maryland |
| 38 | Laura Holland | 18 | Daughter | 40 | Maryland |
| 39 | Hazel Holland | 14 | Daughter | 0 | Maryland |
| 40 | Eddie Holland | 10 | Son | 0 | Maryland |
Pedigree Summary
Marie + 2 siblings
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)