MH
Martha Harris — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Jefferson-County, Mississippi
Our Model Tree links this Martha Harris across the 1930 and 1940 US Censuses in Jefferson-County, Mississippi (XGBoost, ~Confirmed) — first a daughter (b.~1921), then head of a 12-person household.
Age 19
b. ~1921
Female
Daughter
Born: Mississippi
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Mississippi |
| Surname | Harris |
| Given Name | Martha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Mississippi |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Occupation | Helper |
| Industry | Farm |
| Class of Worker | NP |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Mississippi |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
| Occupation | Helper |
| Township / Ward | Beat District 2 |
| Est. Birth Year | ~1921 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Martha | Age | Birth yr |
|---|---|---|---|---|
| Mary Harris | Daughter | — | 19 | ~1921 |
| Perlia Harris | Daughter | — | 8 | ~1932 |
| Arlie Harris | Daughter | — | 28 | ~1912 |
| Martha Harris | Daughter | — | 19 | ~1921 |
| Bertha Harris | Daughter | — | 11 | ~1929 |
| Cary Harris | Daughter | — | 12 | ~1928 |
| Annie Harris | Daughter | — | 22 | ~1918 |
| Marcus Harris | Head | — | 60 | ~1880 |
| Joseph Harris | Son | — | 15 | ~1925 |
| Ike Harris | Son | — | 25 | ~1915 |
| John Harris | Son | — | 18 | ~1922 |
| Rosa Harris | Spouse | — | 50 | ~1890 |
Census Appearances
1930
Jefferson, Mississippi
Daughter, age 11
Jefferson, Mississippi · implied b. ~1919 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harris |
| Given Name | Martha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Mississippi |
| Father's Birthplace | Mississippi |
| Mother's Birthplace | Mississippi |
| Can Read/Write | Yes |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
1940
Jefferson-County, Mississippi
Daughter, age 19
Jefferson-County, Mississippi · implied b. ~1921 — 12 household members
| Surname | Harris |
| Given Name | Martha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Mississippi |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Jefferson |
| Occupation | Helper |
| Industry | Farm |
| Class of Worker | NP |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Mississippi |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
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 Martha Harris across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Martha Harris
Daughter · 1940 · age 19 · b. ~1921 · Mississippi
★ You are viewing this record
Sibling
Arlie Harris
Sibling · 1940 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Harris
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Cary Harris
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Perlia Harris
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Harris
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Harris
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Annie Harris
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bertha Harris
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ike Harris
Sibling · 1940 · age 25
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 — Jefferson-County, Mississippi
Open full size
1940 US Federal Census — Jefferson-County, Mississippi
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02034-00093)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Guy B. Blank | 50 | Head | Farmer | Ohio |
| 2 | Valina Blank | 47 | Wife | — | Mississippi |
| 3 | Willie Clark | 56 | Head | Farming | Mississippi |
| 4 | Abel Clark | 37 | Wife | — | Mississippi |
| 5 | Annie Mae Clark | 13 | Daughter | — | Mississippi |
| 6 | Isaac Williams | 65 | Head | Carpenter | Mississippi |
| 7 | Timothy Harris | 73 | Head | Farming | Mississippi |
| 8 | Christine Harris | 18 | Daughter | House Keeper | Mississippi |
| 9 | Timothy Jr. Harris | 16 | Son | Farming | Mississippi |
| 10 | Sam Harris | 13 | Son | — | Mississippi |
| 11 | Florence Harris | 8 | Daughter | — | Mississippi |
| 12 | Marcus Harris | 60 | Head | Farming | Mississippi |
| 13 | Rosa Harris | 50 | Wife | — | Mississippi |
| 14 | Arlie Harris | 28 | Daughter | Helper | Mississippi |
| 15 | Ike Harris | 25 | Son | Farming | Mississippi |
| 16 | Annie Bell Harris | 22 | Daughter | Helper | Mississippi |
| 17 | Mary Harris | 19 | Daughter | Helper | Mississippi |
| 18 | Martha Harris THIS PERSON | 19 | Daughter | Helper | Mississippi |
| 19 | John Harris | 18 | Son | Laborer | Mississippi |
| 20 | Joseph Harris | 15 | Son | Farming | Mississippi |
| 21 | Cary Harris | 12 | Daughter | — | Mississippi |
| 22 | Bertha Harris | 11 | Daughter | — | Mississippi |
| 23 | Perlia Harris | 8 | Daughter | — | Mississippi |
| 24 | Mary E. Gray | 48 | Head | Farming | Mississippi |
| 25 | Man Gray | 22 | Son | Helper | Mississippi |
| 26 | Porter Gray | 17 | Son | — | Mississippi |
| 27 | Willie Smith | 12 | Adopted son | — | Mississippi |
| 28 | Cebron Carter | 52 | Head | Farming | Mississippi |
| 29 | Alice Carter | 48 | Wife | — | Mississippi |
| 30 | Henry Smith | 48 | Head | Farming | Mississippi |
| 31 | Anna Jane Smith | 47 | Wife | — | Mississippi |
| 32 | Bobby C. Smith | 10 | Daughter | — | Mississippi |
| 33 | Beckie Corter | 61 | Mother-in-law | — | Mississippi |
| 34 | A. D. Gray | 53 | Head | Farming | Mississippi |
| 35 | Henrietta Gray | 36 | Wife | — | Louisiana |
| 36 | Martha A. Gray | 16 | Daughter | — | Mississippi |
| 37 | James A. Gray | 12 | Son | — | Mississippi |
| 38 | Ross Wells | 42 | Head | Farming | Mississippi |
| 39 | T. J. Wells | 23 | Son | Farming | Mississippi |
| 40 | Cinderella Jackson | 26 | Lodger | — | Mississippi |
Related Census Records
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)