MB
Mary Buck — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cambria-County, Pennsylvania
Our Model Tree links this Mary Buck across the 1930 and 1940 US Censuses in Cambria-County, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1923), then head of a 6-person household.
Age 17
b. ~1923
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cambria-County, Pennsylvania |
| Surname | Buck |
| Given Name | Mary M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Carrolltown Borough |
| 1935 Residence (County) | Cambria |
| Additional Details | |
| Industry | S |
| Class of Worker | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Carrolltown Borough |
| Est. Birth Year | ~1923 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Robert Buck | Son | — | 22 | ~1918 |
| M Buck | Head | — | 53 | ~1887 |
| Anna Buck | Spouse | — | 51 | ~1889 |
| Mark Buck | Son | — | 19 | ~1921 |
| Thomas Buck | Son | — | 24 | ~1916 |
| Mary Buck | Daughter | — | 17 | ~1923 |
Census Appearances
1930
Cambria, Pennsylvania
Daughter, age 7
Cambria, Pennsylvania · implied b. ~1923 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Buck |
| Given Name | Mary M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Cambria-County, Pennsylvania
Daughter, age 17
Cambria-County, Pennsylvania · implied b. ~1923 — 6 household members
| Surname | Buck |
| Given Name | Mary M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Carrolltown Borough |
| 1935 Residence (County) | Cambria |
| Industry | S |
| Class of Worker | 0 |
| Highest Grade | H-4 |
| 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 Buck across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Buck
Daughter · 1940 · age 17 · b. ~1923 · Pennsylvania
★ You are viewing this record
Sibling
Mark Buck
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Buck
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Buck
Sibling · 1940 · age 22
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 — Cambria-County, Pennsylvania
Open full size
1940 US Federal Census — Cambria-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03451-00702)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Helenica Bucks | 52 | Wife | — | Pennsylvania |
| 2 | Lambert Bucks | 62 | Brother-in-law | — | Pennsylvania |
| 3 | Kathryn Bucks | 91 | Mother-in-law | — | Germany |
| 4 | James J. Farren | 24 | Head | Miner | Pennsylvania |
| 5 | George Jr. Farren | 67 | Father | — | Pennsylvania |
| 6 | Mary Farren | 63 | Mother | — | Pennsylvania |
| 7 | Catherine Farren | 32 | Sister | Clerk | Pennsylvania |
| 8 | Jennie Farren | 30 | Sister | — | Pennsylvania |
| 9 | Gerard Kelly | 28 | Head | Teacher | Pennsylvania |
| 10 | Kathryn V. Kelly | 30 | Wife | — | Pennsylvania |
| 11 | Willard Kelly | 5 | Son | — | Pennsylvania |
| 12 | Thomas Kelly | 3 | Son | — | Pennsylvania |
| 13 | James Kelly | 1 | Son | — | Pennsylvania |
| 14 | J. Edward Stevens | 63 | Head | Mortician | Pennsylvania |
| 15 | Agnes C. Stevens | 62 | Wife | — | Pennsylvania |
| 16 | Mildred Stevens | 37 | Daughter | — | Pennsylvania |
| 17 | Cyril L. Stevens | 23 | Son | Teacher | Pennsylvania |
| 18 | Bernard Stevens | 21 | Son | New Worker | Pennsylvania |
| 19 | M. A. Buck | 53 | Head | Carpenter | Pennsylvania |
| 20 | Anna R. Buck | 51 | Wife | — | Pennsylvania |
| 21 | Thomas A. Buck | 24 | Son | Car Builder | Pennsylvania |
| 22 | Robert J. Buck | 22 | Son | Carpenter | Pennsylvania |
| 23 | Mark G. Buck | 19 | Son | — | Pennsylvania |
| 24 | Mary M. Buck THIS PERSON | 17 | Daughter | — | Pennsylvania |
| 25 | Felix Cynkar | 24 | Head | Miner | Pennsylvania |
| 26 | Eleanor Cynkar | 19 | Wife | — | Pennsylvania |
| 27 | Frances Ann Cynkar | 0 | Daughter | — | Pennsylvania |
| 28 | Catherine Wunderlich | 76 | Head | — | Pennsylvania |
| 29 | Thomas Wencel | 37 | Head | Laborer | Pennsylvania |
| 30 | Helen Wencel | 36 | Wife | — | Pennsylvania |
| 31 | William Wencel | 13 | Son | — | Pennsylvania |
| 32 | Richard Wencel | 11 | Son | — | Pennsylvania |
| 33 | Alice Wencel | 4 | Daughter | — | Pennsylvania |
| 34 | Lambert Strickland | 36 | Head | Laborer | Pennsylvania |
| 35 | Ruth Strickland | 35 | Wife | — | Pennsylvania |
| 36 | Mona Strickland | 9 | Daughter | — | Pennsylvania |
| 37 | Sally Ann Strickland | 5 | Daughter | — | Pennsylvania |
| 38 | Ruth Strickland | 2 | Daughter | — | Pennsylvania |
| 39 | Christina Mcmaster | 70 | Head | — | Pennsylvania |
| 40 | Frank S. Stich | 60 | Head | — | 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)