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John Schwartz — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Dauphin, Pennsylvania
Our Model Tree links this John Schwartz across the 1920, 1930 and 1940 US Censuses in Dauphin, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1897), then head of a 5-person household.
Age 33
b. ~1897
Male
Head
Born: Pennsylvania
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Dauphin, Pennsylvania |
| Surname | Schwartz |
| Given Name | John H |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 19 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | Fireman |
| Industry | Steam Railroad |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 3800 |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Fireman |
| Township / Ward | Hummelstown Town |
| Est. Birth Year | ~1897 |
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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Schwartz | Head | — | 33 | ~1897 |
| Mary Schwartz | Spouse | — | 31 | ~1899 |
| John Schwartz | Son | — | 2 | ~1928 |
| Mildred Schwartz | Daughter | — | 13 | ~1917 |
| Elwood Schwartz | Son | — | 5 | ~1925 |
Census Appearances
1920
Dauphin, Pennsylvania
Head, age 22
Dauphin, Pennsylvania · implied b. ~1898 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Swartz |
| Given Name | John A |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Fireman |
| Industry | Railroad |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Dauphin, Pennsylvania
Head, age 33
Dauphin, Pennsylvania · implied b. ~1897 — 5 household members
| Surname | Schwartz |
| Given Name | John H |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 19 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Fireman |
| Industry | Steam Railroad |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 3800 |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Dauphin-County, Pennsylvania
Head, age 43
Dauphin-County, Pennsylvania · implied b. ~1897 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Swartz |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Hummelstown |
| 1935 Residence (County) | Dauphin |
| Occupation | fireman |
| Industry | Railroad |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 1075 |
| Highest Grade | No 8 |
| 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 John Schwartz across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Schwartz
Head · 1930 · age 33 · b. ~1897 · Pennsylvania
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Dauphin, Pennsylvania
Open full size
1930 US Federal Census — Dauphin, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel2027:0734)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Betty R Smith | 6 | Daughter | — | Pennsylvania |
| 2 | Ruth A Smith | 4 | Daughter | — | Pennsylvania |
| 3 | Warren J Smith | 2 | Son | — | Pennsylvania |
| 4 | Geraldine G Smith | 0 | Daughter | — | Pennsylvania |
| 5 | John H Schwartz THIS PERSON | 33 | Head | Fireman | Pennsylvania |
| 6 | Mary M Schwartz | 31 | Wife | — | Pennsylvania |
| 7 | Mildred M Schwartz | 13 | Daughter | — | Pennsylvania |
| 8 | Elwood C Schwartz | 5 | Son | — | Pennsylvania |
| 9 | John E Schwartz | 2 | Son | — | Pennsylvania |
| 10 | John T Ramsey | 82 | Head | Justice Of Peace | Maryland |
| 11 | Sara Ramsey | 86 | Wife | — | Pennsylvania |
| 12 | Mary Mengle | 55 | Servant | Servant | Pennsylvania |
| 13 | Katherine Hummel | 72 | Head | — | Pennsylvania |
| 14 | Carl W Smith | 36 | Head | Foreman | Pennsylvania |
| 15 | Myrtle V Smith | 36 | Wife | — | Pennsylvania |
| 16 | Byron E Smith | 14 | Son | — | Pennsylvania |
| 17 | Lenore E Smith | 6 | Son | — | Pennsylvania |
| 18 | Edward F Eby | 62 | Father-in-law | Machinist Helper | Pennsylvania |
| 19 | Ralph E Walters | 38 | Head | Conductor | Pennsylvania |
| 20 | Elsie R Walters | 41 | Wife | — | Pennsylvania |
| 21 | Ralph C Walters | 10 | Son | — | Pennsylvania |
| 22 | Donald E Walters | 7 | Son | — | Pennsylvania |
| 23 | Samuel Walters | 71 | Father | Mill Hand | Pennsylvania |
| 24 | Abner B Remy | 37 | Head | Contractor | Pennsylvania |
| 25 | Anna M Remy | 39 | Wife | — | Pennsylvania |
| 26 | Martha J Remy | 15 | Daughter | — | Pennsylvania |
| 27 | Millard N Remy | 13 | Son | — | Pennsylvania |
| 28 | Janet L Remy | 9 | Daughter | — | Pennsylvania |
| 29 | Edward H Stadler | 33 | Head | Brakeman | Pennsylvania |
| 30 | Anna M Stadler | 32 | Wife | — | Pennsylvania |
| 31 | Dorothy M Stadler | 11 | Daughter | — | Pennsylvania |
| 32 | William R Stadler | 10 | Son | — | Pennsylvania |
| 33 | Louis E West | 65 | Head | Concrete Paving | Pennsylvania |
| 34 | Ida C West | 55 | Wife | — | Pennsylvania |
| 35 | Charles L West | 32 | Son | Auto Mechanic | Pennsylvania |
| 36 | Clarence E West | 20 | Son | Weaver | Pennsylvania |
| 37 | Fay E West | 15 | Daughter | — | Pennsylvania |
| 38 | Maude I West | 27 | Daughter-in-law | — | Pennsylvania |
| 39 | Charles L Jr West | 0 | Grandson | — | Pennsylvania |
| 40 | Homer B W Stahler | 31 | Head | Mail Carrier | Pennsylvania |
| 41 | Henrietta E Stahler | 27 | Wife | — | Pennsylvania |
| 42 | Homer B Jr Stahler | 7 | Son | — | Pennsylvania |
| 43 | Dorothy J Stahler | 5 | Daughter | — | Pennsylvania |
| 44 | Marion H Stahler | 3 | Daughter | — | Pennsylvania |
| 45 | Henrietta B Stahler | 1 | Daughter | — | Pennsylvania |
| 46 | John O Liddick | 57 | Head | Mechanic | Pennsylvania |
| 47 | Joyce E Liddick | 25 | Daughter | — | Pennsylvania |
| 48 | John W Liddick | 21 | Son | Farmer | Pennsylvania |
| 49 | Susan R Krodel | 27 | Housekeeper | Housekeeper | Pennsylvania |
| 50 | Clarence S Krodel | 1 | Boarder | — | Pennsylvania |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)