MF
Mary Frederick — 1940 US Census Record
Model Tree available1940 United States Federal Census · Duplin-County, North Carolina
Our Model Tree links this Mary Frederick across the 1920, 1930 and 1940 US Censuses in Duplin-County, North Carolina (XGBoost, ~Confirmed), with identified parents Levi & Sherman — first a daughter (b.~1918), then head of a 13-person household.
Age 22
b. ~1918
Female
Daughter
Born: North Carolina
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Duplin-County, North Carolina |
| Surname | Frederick |
| Given Name | Mary A. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | Black |
| Age | 22 |
| Marital Status | Single |
| Birthplace | North Carolina |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Duplin |
| Additional Details | |
| Occupation | farm laborer |
| Industry | farming |
| Class of Worker | NP |
| Hours Worked | 5 |
| Income (1939) | 20 |
| Highest Grade | No 7 |
| 1935 Residence | North Carolina |
| Birth State | North Carolina |
| Birth Country | United States |
| Birthplace (normalized) | north carolina |
| Occupation | Farm Laborer |
| Township / Ward | Warsaw Township |
| Est. Birth Year | ~1918 |
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.
13 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Thelma Frederick | Daughter | — | 16 | ~1924 |
| Beulah Frederick | Daughter | — | 19 | ~1921 |
| Sherman Frederick | Head | — | 33 | ~1907 |
| Ester Frederick | Daughter | — | 25 | ~1915 |
| Lizzie Frederick | Spouse | — | 47 | ~1893 |
| Fountain Frederick | Son | — | 4 | ~1936 |
| Mary Frederick | Daughter | — | 22 | ~1918 |
| James Frederick | Son | — | 16 | ~1924 |
| Chester Frederick | Son | — | 9 | ~1931 |
| Minnie Frederick | Daughter | — | 14 | ~1926 |
| Gladys Frederick | Daughter | — | 11 | ~1929 |
| Mabel Frederick | Daughter | — | 13 | ~1927 |
| Sherman Frederick | Son | — | 24 | ~1916 |
Census Appearances
1920
Duplin, North …
Daughter, age 1
Duplin, North Carolina · implied b. ~1919 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Frederick |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 1 |
| Marital Status | Single |
| Birthplace | North Carolina |
| Father's Birthplace | North Carolina |
| Mother's Birthplace | North Carolina |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth State | North Carolina |
| Birth Country | United States |
| Birthplace (normalized) | north carolina |
1930
Duplin, North …
Daughter, age 11
Duplin, North Carolina · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Frederick |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 11 |
| Marital Status | Single |
| Birthplace | North Carolina |
| Father's Birthplace | North Carolina |
| Mother's Birthplace | North Carolina |
| Can Read/Write | Yes |
| Birth State | North Carolina |
| Birth Country | United States |
| Birthplace (normalized) | north carolina |
1940
Duplin-County, North …
Daughter, age 22
Duplin-County, North Carolina · implied b. ~1918 — 13 household members
| Surname | Frederick |
| Given Name | Mary A. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | Black |
| Age | 22 |
| Marital Status | Single |
| Birthplace | North Carolina |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Duplin |
| Occupation | farm laborer |
| Industry | farming |
| Class of Worker | NP |
| Hours Worked | 5 |
| Income (1939) | 20 |
| Highest Grade | No 7 |
| 1935 Residence | North Carolina |
| Birth State | North Carolina |
| Birth Country | United States |
| Birthplace (normalized) | north carolina |
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 Frederick across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Levi Frederick (~0.92 confidence) and father Sherman Frederick (~0.60 confidence) and father Simi Frederick (~0.92 confidence) and mother Lillie Frederick (~0.92 confidence) and mother Lizzie Frederick (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.86
Father
Levi Frederick
b. ~1866
Source father
● Household
· direct · ~0.92
Father
Sherman Frederick
b. ~1907
Source father
● Household
· direct · ~0.6
Father
Simi Frederick
b. ~1870
Source father
● Household
· direct · ~0.92
Mother
Lillie Frederick
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Lizzie Frederick
b. ~1893
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Frederick
Daughter · 1940 · age 22 · b. ~1918 · North Carolina
★ You are viewing this record
Sibling
Fountain Frederick
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Beulah Frederick
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Frederick
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mabel Frederick
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ester Frederick
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gladys Frederick
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Minnie Frederick
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sherman Frederick
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thelma Frederick
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Chester Frederick
Sibling · 1940 · age 9
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 — Duplin-County, North Carolina
Open full size
1940 US Federal Census — Duplin-County, North Carolina
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02901-00954)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Clifton Best | 31 | head | Farm Laborer | North Carolina |
| 2 | Lillie Best | 29 | wife | Farm Laborer | North Carolina |
| 3 | Leo Best | 4 | son | — | North Carolina |
| 4 | James A. Best | 3 | son | — | North Carolina |
| 5 | Chester L. Best | 2 | son | — | North Carolina |
| 6 | Jubilee Best | 0 | son | — | North Carolina |
| 7 | Walter Marrow | 30 | head | Farm Laborer | North Carolina |
| 8 | Marion Marrow | 22 | wife | Farm Laborer | North Carolina |
| 9 | Pawsey Frederick | 33 | head | Farm Operator | North Carolina |
| 10 | Lula M. Frederick | 25 | wife | Farm Laborer | North Carolina |
| 11 | Vernice Frederick | 5 | daughter | — | North Carolina |
| 12 | Pawsey Frederick | 4 | son | — | North Carolina |
| 13 | Annette Frederick | 2 | daughter | — | North Carolina |
| 14 | Caroline Frederick | 1 | daughter | — | North Carolina |
| 15 | Robert Williams | 35 | lodger | Farm Laborer | North Carolina |
| 16 | Sherman Frederick | 33 | head | Farm Laborer | North Carolina |
| 17 | Lizzie Frederick | 47 | wife | Farm Laborer | North Carolina |
| 18 | Ester Frederick | 25 | daughter | Farm Laborer | North Carolina |
| 19 | Sherman Frederick | 24 | son | Farm Laborer | North Carolina |
| 20 | Mary A. Frederick THIS PERSON | 22 | daughter | Farm Laborer | North Carolina |
| 21 | Beulah Frederick | 19 | daughter | Farm Laborer | North Carolina |
| 22 | Thelma Frederick | 16 | daughter | Farm Laborer | North Carolina |
| 23 | James Frederick | 16 | son | Farm Laborer | North Carolina |
| 24 | Minnie Frederick | 14 | daughter | Farm Laborer | North Carolina |
| 25 | Mabel Frederick | 13 | daughter | — | North Carolina |
| 26 | Gladys Frederick | 11 | daughter | — | North Carolina |
| 27 | Chester Frederick | 9 | son | — | North Carolina |
| 28 | Fountain Frederick | 4 | son | — | North Carolina |
| 29 | Samuel A. Bowden | 44 | head | Farm Operator | North Carolina |
| 30 | Sarah A. Bowden | 41 | wife | Farm Laborer | North Carolina |
| 31 | Sarah B. Bowden | 17 | daughter | Farm Laborer | North Carolina |
| 32 | Samuel R. Bowden | 16 | son | Farm Laborer | North Carolina |
| 33 | Martha N. Bowden | 14 | daughter | Farm Laborer | North Carolina |
| 34 | Dorothy F. Bowden | 11 | daughter | — | North Carolina |
| 35 | Joyce A. Bowden | 7 | daughter | — | North Carolina |
| 36 | John S. Williams | 52 | head | Superintendent | North Carolina |
| 37 | Ella C. Williams | 53 | wife | Farm Laborer | North Carolina |
| 38 | Cary W. Williams | 16 | daughter | Assistant Clerk | North Carolina |
| 39 | Narcie F. Williams | 17 | daughter | Farm Laborer | North Carolina |
| 40 | John H. Williams | 12 | son | — | North Carolina |
Pedigree Summary
Mary + 10 siblings
Gen 1 · 5 parents
~0.86
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)