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Mary Leach — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Rowan-County, North Carolina
Our Model Tree links this Mary Leach across the 1930 and 1940 US Censuses in Rowan-County, North Carolina (XGBoost, ~Confirmed) — first a daughter (b.~1924), then head of a 7-person household.
Age 16
b. ~1924
Female
Daughter
Born: South Carolina
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Rowan-County, North Carolina |
| Surname | Leach |
| Given Name | Mary S. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 16 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Rowan |
| Additional Details | |
| Hours Worked | 0 |
| Highest Grade | G 0 |
| 1935 Residence | North Carolina |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Township / Ward | China Grove Township |
| Est. Birth Year | ~1924 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| J Leach | Son | — | 21 | ~1919 |
| Alec Leach | Son | — | 25 | ~1915 |
| Mary Leach | Head | — | 53 | ~1887 |
| Jessie Leach | Daughter | — | 13 | ~1927 |
| Mary Leach | Daughter | — | 16 | ~1924 |
| Roland Leach | Son | — | 22 | ~1918 |
| Walter Leach | Son | — | 18 | ~1922 |
Census Appearances
1930
Rowan, North …
Daughter, age 8
Rowan, North Carolina · implied b. ~1922 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leech |
| Given Name | Mary S |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 8 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Occupation | none |
| Can Read/Write | No |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1940
Rowan-County, North …
Daughter, age 16
Rowan-County, North Carolina · implied b. ~1924 — 7 household members
| Surname | Leach |
| Given Name | Mary S. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 16 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Rowan |
| Hours Worked | 0 |
| Highest Grade | G 0 |
| 1935 Residence | North Carolina |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south 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 Leach across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Leach
Daughter · 1940 · age 16 · b. ~1924 · North Carolina
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Sibling
Roland Leach
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jessie Leach
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
J Leach
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Walter Leach
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alec Leach
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 — Rowan-County, North Carolina
Open full size
1940 US Federal Census — Rowan-County, North Carolina
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02968-00191)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Wincie Alexander | 14 | Daughter | — | North Carolina |
| 2 | Rommie Alexander | 12 | Son | — | North Carolina |
| 3 | Mae Willie Alexander | 12 | Daughter | — | North Carolina |
| 4 | Mary Alexander Deal | 31 | Head | Card Grinder | North Carolina |
| 5 | Ruth E. Deal | 30 | Wife | Hemmer | North Carolina |
| 6 | Barbara J. Deal | 1 | Daughter | — | North Carolina |
| 7 | Mary D. Leach | 53 | Head | — | South Carolina |
| 8 | Alec Leach | 25 | Son | Farm Hand | South Carolina |
| 9 | Roland Leach | 22 | Son | Laborer | South Carolina |
| 10 | J. T. Leach | 21 | Son | Farm Hand | South Carolina |
| 11 | Walter Leach | 18 | Son | Farm Helper | South Carolina |
| 12 | Mary S. Leach THIS PERSON | 16 | Daughter | — | South Carolina |
| 13 | Jessie L. Leach | 13 | Daughter | — | South Carolina |
| 14 | Hardy Lee | 43 | Head | Farmer | Georgia |
| 15 | Lila Lee | 35 | Wife | Scrub Hand | Georgia |
| 16 | James M. Brotherton | 39 | Head | Farmer | North Carolina |
| 17 | Thelma B. Brotherton | 35 | Wife | — | North Carolina |
| 18 | Martha A. Brotherton | 12 | Daughter | — | North Carolina |
| 19 | James M. Jr. Brotherton | 10 | Son | — | North Carolina |
| 20 | Laura E. Brotherton | 5 | Daughter | — | North Carolina |
| 21 | Troy Lee Brotherton | 3 | Son | — | North Carolina |
| 22 | Ed. R. Brotherton | 61 | Head | Farmer | North Carolina |
| 23 | Maud Brotherton | 34 | Daughter | — | North Carolina |
| 24 | Edward Brotherton | 26 | Son | Carpenter | North Carolina |
| 25 | Mary Brotherton | 30 | Wife | — | North Carolina |
| 26 | Georgia B. Davis | 57 | Head | — | North Carolina |
| 27 | Mary Davis | 24 | Daughter | Winder | North Carolina |
| 28 | Ray Davis | 23 | Son | Section Hand | North Carolina |
| 29 | R. Lee Davis | 20 | Daughter | House Keeper | North Carolina |
| 30 | Ethel Davis | 17 | Daughter | — | North Carolina |
| 31 | Will B. Teeter | 52 | Head | Farmer | North Carolina |
| 32 | Effie Teeter | 48 | Wife | — | North Carolina |
| 33 | Fred Teeter | 21 | Son | Spare Hand | North Carolina |
| 34 | Ralph Teeter | 18 | Son | Spare Hand | North Carolina |
| 35 | Joe Teeter | 16 | Son | — | North Carolina |
| 36 | Harold Teeter | 13 | Son | — | North Carolina |
| 37 | Richard Teeter | 9 | Son | — | North Carolina |
| 38 | John A. Barnhardt | 60 | Head | Farmer | North Carolina |
| 39 | Kate B. Barnhardt | 55 | Wife | — | North Carolina |
| 40 | Frank E. Barnhardt | 20 | Son | Weaver | North Carolina |
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)