JH
Joseph Hart — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mercer-County, Pennsylvania
Our Model Tree links this Joseph Hart across the 1930 and 1940 US Censuses in Mercer-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1922), then head of a 7-person household.
Age 18
b. ~1922
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Mercer-County, Pennsylvania |
| Surname | Hart |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Sandy Lake Borough |
| 1935 Residence (County) | Mercer |
| Additional Details | |
| Occupation | office work |
| Industry | High School |
| Class of Worker | GW |
| Hours Worked | 23 |
| Income (1939) | 36 |
| Highest Grade | H 3 |
| 1935 Residence | Same house |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Office Work |
| Township / Ward | Sandy Lake Borough |
| Est. Birth Year | ~1922 |
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 Joseph | Age | Birth yr |
|---|---|---|---|---|
| Ethel Hart | Daughter | — | 15 | ~1925 |
| Joseph Hart | Son | — | 18 | ~1922 |
| May Hart | Daughter | — | 16 | ~1924 |
| Harry Hart | Head | — | 47 | ~1893 |
| Bertha Hart | Spouse | — | 40 | ~1900 |
| Allen Hart | Son | — | 13 | ~1927 |
| Dorothy Hart | Daughter | — | 10 | ~1930 |
Census Appearances
1930
Mercer, Pennsylvania
Son, age 8
Mercer, Pennsylvania · implied b. ~1922 — 17 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hart |
| Given Name | Joseph E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Mercer-County, Pennsylvania
Son, age 18
Mercer-County, Pennsylvania · implied b. ~1922 — 7 household members
| Surname | Hart |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Sandy Lake Borough |
| 1935 Residence (County) | Mercer |
| Occupation | office work |
| Industry | High School |
| Class of Worker | GW |
| Hours Worked | 23 |
| Income (1939) | 36 |
| 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 Joseph Hart across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Joseph Hart
Son · 1940 · age 18 · b. ~1922 · Pennsylvania
★ You are viewing this record
Sibling
Dorothy Hart
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Allen Hart
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ethel Hart
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
May Hart
Sibling · 1940 · age 16
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 — Mercer-County, Pennsylvania
Open full size
1940 US Federal Census — Mercer-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03571-00771)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ruth J. Staup | 24 | Step daughter | Teacher | Pennsylvania |
| 42 | Harry H. Henderson | 38 | Head | Machinist | Pennsylvania |
| 43 | Ruth Henderson | 39 | Wife | — | Pennsylvania |
| 44 | David Philip Henderson | 17 | Son | — | Pennsylvania |
| 45 | Charles G. Henderson | 14 | Son | — | Pennsylvania |
| 46 | Adda Mae Henderson | 12 | Daughter | — | Pennsylvania |
| 47 | Charles R. Wilson | 23 | Head | Machinist | New York |
| 48 | Leota Wilson | 26 | Wife | — | Pennsylvania |
| 49 | Kenneth Wilson | 7 | Son | — | Pennsylvania |
| 50 | Charles Wilson | 1 | Son | — | Pennsylvania |
| 51 | Roberta Wilson | 0 | Daughter | — | Pennsylvania |
| 52 | Charles Arters | 61 | Head | Janitor | Pennsylvania |
| 53 | Letha Guiler | 73 | Head | — | Pennsylvania |
| 54 | Ralph S. Patton | 50 | Head | Brakeman | Pennsylvania |
| 55 | Adda Patton | 37 | Wife | — | West Virginia |
| 56 | Evelyn Patton | 19 | Daughter | — | Pennsylvania |
| 57 | Ralph G. Patton | 16 | Son | — | Pennsylvania |
| 58 | Duane Patton | 13 | Son | — | Pennsylvania |
| 59 | Harry Hart | 47 | Head | Truck Driver | Pennsylvania |
| 60 | Bertha Hart | 40 | Wife | — | Pennsylvania |
| 61 | Joseph Hart THIS PERSON | 18 | Son | Office Work | Pennsylvania |
| 62 | May Hart | 16 | Daughter | — | Pennsylvania |
| 63 | Ethel Hart | 15 | Daughter | — | Pennsylvania |
| 64 | Allen Hart | 13 | Son | — | Pennsylvania |
| 65 | Dorothy Hart | 10 | Daughter | — | Pennsylvania |
| 66 | John H. Suffrage | 47 | Head | Labor | Pennsylvania |
| 67 | Jennie Suffrage | 56 | Wife | — | Pennsylvania |
| 68 | Leslie Jr. Williams | 18 | Grandson | Beer Worker | Pennsylvania |
| 69 | Dorothy Williams | 14 | Granddaughter | — | Pennsylvania |
| 70 | Enid Williams | 12 | Granddaughter | — | Pennsylvania |
| 71 | Sara Moyer | 76 | Head | — | Canada English |
| 72 | Ida Phillips | 52 | Daughter | — | Pennsylvania |
| 73 | John Kerr | 51 | Head | Rural Carrier | Pennsylvania |
| 74 | Clara Kerr | 49 | Wife | — | Pennsylvania |
| 75 | Harlan James | 34 | Head | Laborer | Pennsylvania |
| 76 | Esther James | 35 | Wife | — | Pennsylvania |
| 77 | Freeland James | 13 | Son | — | Pennsylvania |
| 78 | Stanley James | 9 | Son | — | Pennsylvania |
| 79 | Wm H. Paxton | 29 | Head | Farmer | Pennsylvania |
| 80 | Edith Paxton | 26 | Wife | — | 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)