MF
Mary Fields — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Bolivar-County, Mississippi
Our Model Tree links this Mary Fields across the 1930 and 1940 US Censuses in Bolivar-County, Mississippi (XGBoost, ~Confirmed) — first a daughter (b.~1921), then head of a 8-person household.
Age 19
b. ~1921
Female
Daughter
Born: Mississippi
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Bolivar-County, Mississippi |
| Surname | Fields |
| Given Name | Mary Jane |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Mississippi |
| 1935 Residence (City) | Beat 5 |
| Additional Details | |
| Occupation | laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 22 |
| Highest Grade | No 8 |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
| Occupation | Laborer |
| Township / Ward | Beat 5 |
| 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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Luvina Fields | Daughter | — | 22 | ~1918 |
| Mary Fields | Daughter | — | 19 | ~1921 |
| John Fields | Head | — | 49 | ~1891 |
| L Fields | Son | — | 14 | ~1926 |
| Junior Fields | Son | — | 16 | ~1924 |
| John Fields | Son | — | 20 | ~1920 |
| Odie Fields | Son | — | 12 | ~1928 |
| Annie Fields | Spouse | — | 47 | ~1893 |
Census Appearances
1930
Bolivar, Mississippi
Daughter, age 14
Bolivar, Mississippi · implied b. ~1916 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fields |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Mississippi |
| Father's Birthplace | Mississippi |
| Mother's Birthplace | Mississippi |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
1940
Bolivar-County, Mississippi
Daughter, age 19
Bolivar-County, Mississippi · implied b. ~1921 — 8 household members
| Surname | Fields |
| Given Name | Mary Jane |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Mississippi |
| 1935 Residence (City) | Beat 5 |
| Occupation | laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 22 |
| Highest Grade | No 8 |
| 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 Mary Fields across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Fields
Daughter · 1940 · age 19 · b. ~1921 · Mississippi
★ You are viewing this record
Sibling
Odie Fields
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Luvina Fields
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
L Fields
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Junior Fields
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Fields
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 — Bolivar-County, Mississippi
Open full size
1940 US Federal Census — Bolivar-County, Mississippi
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02010-00932)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Johnny Jackson | 23 | Son | Laborer | Mississippi |
| 42 | Hattie Brummer | 40 | Head | Laborer | Mississippi |
| 43 | Tom Butler | 28 | Head | Farmer | Mississippi |
| 44 | Alma Butler | 22 | Wife | Laborer | Mississippi |
| 45 | Clara Butler | 6 | Daughter | — | Mississippi |
| 46 | Olie Mae Butler | 5 | Daughter | — | Mississippi |
| 47 | Roosevelt Butler | 3 | Son | — | Mississippi |
| 48 | W L Butler | 0 | Son | — | Mississippi |
| 49 | Jim Macon | 25 | Brother-in-law | Laborer | Mississippi |
| 50 | John Fields | 49 | Head | Farmer | Mississippi |
| 51 | Annie Fields | 47 | Wife | Laborer | Mississippi |
| 52 | Luvina Fields | 22 | Daughter | Laborer | Mississippi |
| 53 | John Jr. Fields | 20 | Son | Farmer | Mississippi |
| 54 | Mary Jane Fields THIS PERSON | 19 | Daughter | Laborer | Mississippi |
| 55 | Junior Fields | 16 | Son | Laborer | Mississippi |
| 56 | L B Fields | 14 | Son | Laborer | Mississippi |
| 57 | Odie Fields | 12 | Son | — | Mississippi |
| 58 | Fields | 2 | Grandson | — | Mississippi |
| 59 | Lang Steel | 59 | Head | Laborer | Mississippi |
| 60 | Idella Steel | 53 | Wife | Laborer | Mississippi |
| 61 | Tompkins Lawson | 41 | Head | Farmer | Mississippi |
| 62 | Emma Lawson | 40 | Wife | Laborer | Mississippi |
| 63 | Ornett Lawson | 18 | Son | Laborer | Mississippi |
| 64 | Napoleon Lawson | 18 | Son | Laborer | Mississippi |
| 65 | Thomas Lawson | 17 | Son | Laborer | Mississippi |
| 66 | Ida G Lawson | 15 | Daughter | Laborer | Mississippi |
| 67 | Edmond Lawson | 13 | Son | Laborer | Mississippi |
| 68 | Bernard Lawson | 12 | Grandson | — | Mississippi |
| 69 | Victoria Lawson | 11 | Daughter | — | Mississippi |
| 70 | Ruben Lawson | 9 | Son | — | Mississippi |
| 71 | W A Lawson | 7 | Son | — | Mississippi |
| 72 | Eugene Lawson | 5 | Daughter | — | Mississippi |
| 73 | Anice Lawson | 3 | Daughter | — | Mississippi |
| 74 | Charlie Lawson | 1 | Son | — | Mississippi |
| 75 | Cal Turner | 32 | Head | Farmer | Mississippi |
| 76 | Martha Turner | 33 | Wife | Laborer | Mississippi |
| 77 | Clarence Turner | 3 | Son | — | Mississippi |
| 78 | Martha Lea Turner | 1 | Daughter | — | Mississippi |
| 79 | George Turner | 24 | Brother | Farmer | Mississippi |
| 80 | Mattie Jones | 8 | Nephew | — | Mississippi |
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)