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Mary Leach — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Snyder-County, Pennsylvania
Our Model Tree links this Mary Leach across the 1930 and 1940 US Censuses in Snyder-County, Pennsylvania (XGBoost, ~Confirmed) — first a spouse (b.~1900), then head of a 8-person household.
Age 40
b. ~1900
Female
Spouse
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Snyder-County, Pennsylvania |
| Surname | Leach |
| Given Name | Mary J. |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Chapman Township |
| 1935 Residence (County) | Snyder |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Chapman Township |
| Est. Birth Year | ~1900 |
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 |
|---|---|---|---|---|
| Eileen Leach | Daughter | — | 9 | ~1931 |
| Helen Leach | Daughter | — | 15 | ~1925 |
| Frank Leach | Head | — | 47 | ~1893 |
| Mary Leach | Daughter | — | 5 | ~1935 |
| Kenneth Leach | Son | — | 11 | ~1929 |
| Almena Leach | Daughter | — | 13 | ~1927 |
| Franklin Leach | Son | — | 7 | ~1933 |
| Mary Leach | Spouse | — | 40 | ~1900 |
Census Appearances
1930
Snyder, Pennsylvania
Other, age 30
Snyder, Pennsylvania · implied b. ~1900 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leech |
| Given Name | Mary J. |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 18 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Snyder-County, Pennsylvania
Spouse, age 40
Snyder-County, Pennsylvania · implied b. ~1900 — 8 household members
| Surname | Leach |
| Given Name | Mary J. |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Chapman Township |
| 1935 Residence (County) | Snyder |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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.
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This person
Anchor record
Mary Leach
Spouse · 1940 · age 40 · b. ~1900 · Pennsylvania
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Snyder-County, Pennsylvania
Open full size
1940 US Federal Census — Snyder-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03608-00104)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Florence Frymyer | 43 | wife | — | Pennsylvania |
| 42 | Homer Frymyer | 23 | son | Farm Laborer | Pennsylvania |
| 43 | Irene Frymyer | 20 | Daughter | — | Pennsylvania |
| 44 | Glen Frymyer | 18 | son | Farm Laborer | Pennsylvania |
| 45 | Robert R. Swineford | 35 | Head | Stone Mason | Pennsylvania |
| 46 | Irene M. Swineford | 36 | wife | — | Pennsylvania |
| 47 | Betty Swineford | 9 | Daughter | — | Pennsylvania |
| 48 | Francis H. Strawser | 56 | Head | Farmer | Pennsylvania |
| 49 | Minnie M. Strawser | 58 | wife | — | Pennsylvania |
| 50 | Arthur S. Strawser | 29 | son | Truck Driver | Pennsylvania |
| 51 | Elwood Strawser | 19 | son | Truck Driver | Pennsylvania |
| 52 | Le Roy Strawser | 8 | Grand-son | — | Pennsylvania |
| 53 | Frank A. Leach | 47 | Head | Farmer | Pennsylvania |
| 54 | Mary J. Leach THIS PERSON | 40 | wife | — | Pennsylvania |
| 55 | Helen L. Leach | 15 | Daughter | — | Pennsylvania |
| 56 | Almena S. Leach | 13 | Daughter | — | Pennsylvania |
| 57 | Kenneth A. Leach | 11 | son | — | Pennsylvania |
| 58 | Eileen M. Leach | 9 | Daughter | — | Pennsylvania |
| 59 | Franklin D.R. Leach | 7 | son | — | Pennsylvania |
| 60 | Mary Lou Leach | 5 | Daughter | — | Pennsylvania |
| 61 | John W. Nichols | 45 | Head | Foreman | Pennsylvania |
| 62 | Jennie C. Nichols | 28 | wife | — | Pennsylvania |
| 63 | Angela F. Nichols | 7 | Daughter | — | Pennsylvania |
| 64 | Shirley I. Nichols | 6 | Daughter | — | Pennsylvania |
| 65 | Marcella C. Nichols | 4 | Daughter | — | Pennsylvania |
| 66 | Sylvia J. Nichols | 2 | Daughter | — | Pennsylvania |
| 67 | J. Albert Herold | 60 | Head | — | Pennsylvania |
| 68 | Minnie C. Herold | 53 | wife | — | Pennsylvania |
| 69 | Harvey A. Loffel | 51 | Head | Farmer | Pennsylvania |
| 70 | Amelia Loffel | 82 | mother | — | Pennsylvania |
| 71 | Catherine Loffel | 55 | sister | — | Pennsylvania |
| 72 | Mary Loffel | 49 | sister | — | Pennsylvania |
| 73 | Albert Loffel | 33 | Nephew | Helper Coal Dredge | Pennsylvania |
| 74 | Charles J. Herold | 57 | Head | Farmer | Pennsylvania |
| 75 | Guy F. Herold | 19 | son | Lumber Camp Tree Cutter | Pennsylvania |
| 76 | Merrill A. Herold | 21 | Head | Laborer | Pennsylvania |
| 77 | Katherine A. Herold | 18 | wife | — | Pennsylvania |
| 78 | Charles E. Lindsay | 33 | Head | Truck Driver | Pennsylvania |
| 79 | Meta Lindsay | 34 | wife | — | Pennsylvania |
| 80 | Floyd Lindsay | 14 | son | — | Pennsylvania |
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)