MW
Mary Watson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cambria-County, Pennsylvania
Our Model Tree links this Mary Watson across the 1920, 1930 and 1940 US Censuses in Cambria-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Thomas & Charles — first a daughter (b.~1907), then head of a 3-person household.
Age 33
b. ~1907
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cambria-County, Pennsylvania |
| Surname | Watson |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Johnstown city |
| 1935 Residence (County) | Cambria |
| Additional Details | |
| Occupation | Waitress |
| Industry | Restaurant |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 780 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Waitress |
| Township / Ward | Johnstown City |
| Est. Birth Year | ~1907 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Pauline Watson | Daughter | — | 26 | ~1914 |
| Mary Watson | Daughter | — | 33 | ~1907 |
| Thomas Watson | Head | — | 51 | ~1889 |
Census Appearances
1920
Cambria, Pennsylvania
Daughter, age 13
Cambria, Pennsylvania · implied b. ~1907 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Watson |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Cambria, Pennsylvania
Daughter, age 23
Cambria, Pennsylvania · implied b. ~1907 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Watson |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Cambria-County, Pennsylvania
Daughter, age 33
Cambria-County, Pennsylvania · implied b. ~1907 — 3 household members
| Surname | Watson |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Johnstown city |
| 1935 Residence (County) | Cambria |
| Occupation | Waitress |
| Industry | Restaurant |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 780 |
| Highest Grade | Hs 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 Watson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Thomas Watson (~0.92 confidence) and father Charles Watson (~0.92 confidence) and mother Gertrude Watson (~0.92 confidence) and mother Ethel Watson (~0.60 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.84
Father
Thomas Watson
b. ~1889
Source father
● Household
· direct · ~0.92
Father
Charles Watson
b. ~1892
Source father
● Household
· direct · ~0.92
Mother
Gertrude Watson
b. ~1892
Source mother
● Household
· direct · ~0.92
Mother
Ethel Watson
b. ~1895
Source mother
● Household
· direct · ~0.6
This person
Anchor record
Mary Watson
Daughter · 1940 · age 33 · b. ~1907 · Pennsylvania
★ You are viewing this record
Sibling
Pauline Watson
Sibling · 1940 · age 26
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-t0627-03454-00228)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joseph Lannity | 48 | Head | Parker | Packer | Tester | Pennsylvania |
| 2 | Mary Lannity | 47 | Wife | — | Pennsylvania |
| 3 | William Lannity | 24 | Son | Truck Driver | Pennsylvania |
| 4 | Melvin Lannity | 22 | Son | Gas Station Attendant | Pennsylvania |
| 5 | Virginia Lannity | 24 | Daughter-in-law | — | W. Virginia |
| 6 | Sally Lannity | 2 | Granddaughter | — | Pennsylvania |
| 7 | Ruth Dowell, H. | 45 | Lodger | Facilitating | Facilitating | Pennsylvania |
| 8 | Raymond G. Tucker | 36 | Lodger | Salesman | Tennessee |
| 9 | Harry N. Hirdt | 56 | Head | Coremaker | Pennsylvania |
| 10 | Mabel Hirdt | 52 | Wife | — | Pennsylvania |
| 11 | Katherine Hirdt | 29 | Daughter | Stenographer | Pennsylvania |
| 12 | Mildred Hirdt | 28 | Daughter | Stenographer | Pennsylvania |
| 13 | Eleanor Hirdt | 27 | Daughter | — | Pennsylvania |
| 14 | Ronald Hirdt | 7 | Son | — | Pennsylvania |
| 15 | John Corberry | 47 | Head | Laborer | Pennsylvania |
| 16 | Amelia Corberry | 48 | Wife | — | Pennsylvania |
| 17 | Paul Fredk Hirdt | 20 | Lodger | Service Station Attendant | Pennsylvania |
| 18 | Frank Corberry | 13 | Son | — | Pennsylvania |
| 19 | Mary E. W. Mccafferty | 56 | Head | — | Pennsylvania |
| 20 | Ann Wentworth | 66 | Sister | — | Pennsylvania |
| 21 | Anna Knupp | 28 | Lodger | Bookkeeper | Pennsylvania |
| 22 | Rose Erwin | 38 | Head | Nurse | Pennsylvania |
| 23 | Thomas Watson | 51 | Head | Brakeman | Pennsylvania |
| 24 | Mary Watson THIS PERSON | 33 | Daughter | Waitress | Pennsylvania |
| 25 | Pauline Watson | 26 | Daughter | — | Pennsylvania |
| 26 | Jas. I. Mccann | 42 | Head | Laborer | Pennsylvania |
| 27 | Mary Mccann | 40 | Wife | — | Austria |
| 28 | Chas. Manganello | 46 | Head | Barber | Italy |
| 29 | Anna Manganello | 37 | Wife | — | Italy |
| 30 | Samuel Manganello | 18 | Son | Stock Boy | Pennsylvania |
| 31 | Sara Manganello | 16 | Daughter | — | Pennsylvania |
| 32 | Paul Manganello | 15 | Son | — | Pennsylvania |
| 33 | Mary Louise Manganello | 13 | Daughter | — | Pennsylvania |
| 34 | Josephine Manganello | 9 | Daughter | — | Pennsylvania |
| 35 | Daniel D. Boyce | 65 | Head | — | Maryland |
| 36 | Minnie L. Boyce | 57 | Wife | — | Pennsylvania |
| 37 | Boyce Lee Boyce | 23 | Daughter | — | Pennsylvania |
| 38 | Harvey Hagg | 30 | Head | Salesman | Pennsylvania |
| 39 | Ruth Hagg | 23 | Wife | — | Pennsylvania |
| 40 | R. Edward Hagg | 5 | Son | — | Pennsylvania |
Pedigree Summary
Mary + 1 sibling
Gen 1 · 4 parents
~0.84
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)