MH
Mary Hoover — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cambria-County, Pennsylvania
Our Model Tree links this Mary Hoover 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 | Hoover |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Loretto Borough |
| 1935 Residence (County) | Cambria |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | H-3 |
| 1935 Residence | Same house |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Loretto 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 |
|---|---|---|---|---|
| Fredrick Hoover | Son | — | 16 | ~1924 |
| Irvin Hoover | Son | — | 11 | ~1929 |
| Louis Hoover | Son | — | 15 | ~1925 |
| Mary Hoover | Daughter | — | 17 | ~1923 |
| Ignatius Hoover | Daughter | — | 10 | ~1930 |
| Armin Hoover | Head | — | 43 | ~1897 |
Census Appearances
1930
Cambria, Pennsylvania
Daughter, age 7
Cambria, Pennsylvania · implied b. ~1923 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hoover |
| Given Name | Mary E. |
| 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 | Hoover |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Loretto Borough |
| 1935 Residence (County) | Cambria |
| Class of Worker | 0 |
| Highest Grade | H-3 |
| 1935 Residence | Same house |
| 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 Hoover across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Hoover
Daughter · 1940 · age 17 · b. ~1923 · Pennsylvania
★ You are viewing this record
Sibling
Louis Hoover
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Irvin Hoover
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Fredrick Hoover
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ignatius Hoover
Sibling · 1940 · age 10
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-t0627-03456-00109)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William Biter | 28 | Head | Shipping Clerk | Pennsylvania |
| 2 | Bertha Biter | 23 | Wife | — | Pennsylvania |
| 3 | John F. Biter | 1 | Grand-son | — | Pennsylvania |
| 4 | Mary Donald Biter | 0 | Grand-d | — | Pennsylvania |
| 5 | Albert J. Buck | 65 | Head | — | Pennsylvania |
| 6 | Laura Buck | 61 | Wife | — | Pennsylvania |
| 7 | Elwood Buck | 20 | Son | New Worker | Pennsylvania |
| 8 | Herman Mchugh | 62 | In-law | — | Pennsylvania |
| 9 | Alvin Biter | 25 | Head | Truck Driver | Pennsylvania |
| 10 | Lora Biter | 24 | Wife | — | Pennsylvania |
| 11 | Marie Biter | 2 | Daughter | — | Pennsylvania |
| 12 | Robert Biter | 1 | Son | — | Pennsylvania |
| 13 | Donald Biter | 0 | Son | — | Pennsylvania |
| 14 | Armin Hoover | 43 | Head | — | Pennsylvania |
| 15 | Mary E. Hoover THIS PERSON | 17 | Daughter | — | Pennsylvania |
| 16 | Fredrick Hoover | 16 | Son | — | Pennsylvania |
| 17 | Louis Hoover | 15 | Son | — | Pennsylvania |
| 18 | Irvin Hoover | 11 | Son | — | Pennsylvania |
| 19 | Ignatius Hoover | 10 | Daughter | — | Pennsylvania |
| 20 | Joseph J. Bard | 54 | Head | Manager | Pennsylvania |
| 21 | Cecelia Bard | 52 | Wife | — | Pennsylvania |
| 22 | Gladys Moyer | 26 | housekeeper | Servant | Pennsylvania |
| 23 | Joseph E. Malloy | 65 | Head | — | Pennsylvania |
| 24 | Flora G. Malloy | 63 | Wife | — | Pennsylvania |
| 25 | Madeline Malloy | 29 | Daughter | Supervisor | Pennsylvania |
| 26 | Felix Malloy | 25 | Son | Teacher | Pennsylvania |
| 27 | Elmer Nilany | 36 | Head | Taker | Pennsylvania |
| 28 | Marie Nilany | 36 | Wife | — | Pennsylvania |
| 29 | Laverne Long | 12 | Daughter | — | Pennsylvania |
| 30 | Robert Long | 10 | Son | — | Pennsylvania |
| 31 | William Long | 1 | Son | — | Pennsylvania |
| 32 | John Long | 57 | Head | Principal | Pennsylvania |
| 33 | Bertha Long | 51 | Wife | — | Pennsylvania |
| 34 | Rosamond Long | 28 | Daughter | Teacher | Pennsylvania |
| 35 | John Long | 25 | Son | Salesman | Pennsylvania |
| 36 | Raymond Long | 15 | Son | — | Pennsylvania |
| 37 | Donald Long | 12 | Son | — | Pennsylvania |
| 38 | Paul M. Bengela | 67 | Head | Care Taker | Pennsylvania |
| 39 | Charlotte Bengela | 70 | Wife | — | Pennsylvania |
| 40 | Mary E. Bengela | 37 | Daughter | Stenographer | 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)