HJ
Harry Johnson — 1930 US Census Record
Model Tree available1930 United States Federal Census · Carbon, Pennsylvania
Our Model Tree links this Harry Johnson across the 1910, 1920 and 1930 US Censuses in Carbon, Pennsylvania (XGBoost, ~Confirmed), with identified parents Joseph & Joseph — first a son (b.~1909), then head of a 8-person household.
Age 21
b. ~1909
Male
Son
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Carbon, Pennsylvania |
| Surname | Johnson |
| Given Name | Harry |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | Laborer |
| Industry | Garage |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Laborer |
| Township / Ward | Summit Hill Borough |
| Est. Birth Year | ~1909 |
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.
8 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Harry | Age | Birth yr |
|---|---|---|---|---|
| Elizabeth Johnson | Daughter | — | 29 | ~1901 |
| Ellen Johnson | Daughter | — | 18 | ~1912 |
| Margaret Johnson | Daughter | — | 16 | ~1914 |
| Joseph Johnson | Head | — | 65 | ~1865 |
| Mary Johnson | Other | — | 64 | ~1866 |
| Harry Johnson | Son | — | 21 | ~1909 |
| Joseph Johnson | Son | — | 33 | ~1897 |
| Paul Johnson | Son | — | 27 | ~1903 |
Census Appearances
1910
Carbon, Pennsylvania
Son, age 2
Carbon, Pennsylvania · implied b. ~1908 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Harry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Carbon, Pennsylvania
Son, age 12
Carbon, Pennsylvania · implied b. ~1908 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Harry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| 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
Carbon, Pennsylvania
Son, age 21
Carbon, Pennsylvania · implied b. ~1909 — 8 household members
| Surname | Johnson |
| Given Name | Harry |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Laborer |
| Industry | Garage |
| Class of Worker | W |
| Can Read/Write | Yes |
| 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 Harry Johnson across 3 US Census years (1910, 1920 and 1930) in Carbon, Pennsylvania, using XGBoost record linkage. Identified parents: father Joseph Johnson (~0.92 confidence) and father Joseph Johnson (~0.92 confidence) and father Joseph Johnson (~0.92 confidence) and mother Mary Johnson (~0.92 confidence) and mother Mary Johnson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Joseph Johnson
b. ~1866
Source father
● Household
· direct · ~0.92
Father
Joseph Johnson
b. ~1867
Source father
● Household
· direct · ~0.92
Father
Joseph Johnson
b. ~1865
Source father
● Household
· direct · ~0.92
Mother
Mary Johnson
b. ~1869
Source mother
● Household
· direct · ~0.92
Mother
Mary Johnson
b. ~1870
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harry Johnson
Son · 1930 · age 21 · b. ~1909 · Pennsylvania
★ You are viewing this record
Sibling
Margaret Johnson
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Johnson
Sibling · 1930 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paul Johnson
Sibling · 1930 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Johnson
Sibling · 1930 · age 33
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ellen Johnson
Sibling · 1930 · age 18
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
1930 US Federal Census — Carbon, Pennsylvania
Open full size
1930 US Federal Census — Carbon, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel2015:0713)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Domenic Gacorono | 34 | boarder | Laborer | Italy |
| 2 | Frank Dangelo | 34 | boarder | Laborer | Italy |
| 3 | Joseph Marcantonio | 34 | boarder | Laborer | Italy |
| 4 | Stephen Iznoschin | 36 | Head | No | Czechoslovakia |
| 5 | Annie Iznoschin | 34 | wife-H | None | Pennsylvania |
| 6 | Mary Iznoschin | 13 | daughter | None | Pennsylvania |
| 7 | Annie Iznoschin | 11 | daughter | None | Pennsylvania |
| 8 | Stephen Iznoschin | 9 | son | None | Pennsylvania |
| 9 | George Iznoschin | 8 | son | None | Pennsylvania |
| 10 | Michael Iznoschin | 5 | son | None | Pennsylvania |
| 11 | Michael Iznoschin | 48 | brother | No | Czechoslovakia |
| 12 | Annie O'Donnell | 58 | Head | — | Irish Free State |
| 13 | John O'Donnell | 45 | son | Laborer | Pennsylvania |
| 14 | Paul Swircheck | 46 | Head | Al | Czechoslovakia |
| 15 | Bertha Swircheck | 44 | wife-H | Al | Czechoslovakia |
| 16 | Paul Swircheck | 19 | son | Laborer | Pennsylvania |
| 17 | Anna Swircheck | 18 | daughter | Clerk | Pennsylvania |
| 18 | John Swircheck | 17 | son | None | Pennsylvania |
| 19 | Stephen Swircheck | 15 | son | None | Pennsylvania |
| 20 | Metia Swircheck | 11 | daughter | None | Pennsylvania |
| 21 | Mary Swircheck | 9 | daughter | None | Pennsylvania |
| 22 | John Heaggerty | 76 | Head | — | Irish Free State |
| 23 | Kate Heaggerty | 33 | daughter | Winder | Pennsylvania |
| 24 | Michael Rokitta | 59 | Head | Al | Czechoslovakia |
| 25 | Annie Rokitta | 55 | wife-H | Al | Czechoslovakia |
| 26 | Edward Mccullen | 27 | Head | Teacher | Pennsylvania |
| 27 | Nora Mccullen | 32 | wife-H | None | Pennsylvania |
| 28 | Irene Campbell | 4 | niece | None | Pennsylvania |
| 29 | Mary Campbell | 1 | niece | None | Pennsylvania |
| 30 | John Donahoe | 68 | Uncle | Laborer | Pennsylvania |
| 31 | Frederick Balderson | 52 | Head | Insulator | Pennsylvania |
| 32 | Mabel M. Balderson | 51 | wife-H | None | New York |
| 33 | Thomas J. Balderson | 17 | son | None | Pennsylvania |
| 34 | Mabel S. Balderson | 15 | son | None | Pennsylvania |
| 35 | Frank Lisella | 52 | Head | — | Italy |
| 36 | Martha Lisella | 45 | wife-H | — | Italy |
| 37 | Anthony Lisella | 26 | son | Hauling | Pennsylvania |
| 38 | Anna Lisella | 24 | daughter | Waitress | Pennsylvania |
| 39 | Carmela Lisella | 7 | niece | None | Pennsylvania |
| 40 | Joseph Sr. Johnson | 65 | Head | Janitor & Night Watchman | Pennsylvania |
| 41 | Mary A. Johnson | 64 | wife-H | None | Pennsylvania |
| 42 | Joseph F. Johnson | 33 | son | Janitor & Night Watchman | Pennsylvania |
| 43 | Elizabeth Johnson | 29 | daughter | None | Pennsylvania |
| 44 | Paul J. Johnson | 27 | son | Clerk | Pennsylvania |
| 45 | Harry Johnson THIS PERSON | 21 | son | Laborer | Pennsylvania |
| 46 | Ellen A. Johnson | 18 | daughter | None | Pennsylvania |
| 47 | Margaret Johnson | 16 | daughter | None | Pennsylvania |
| 48 | Hugh A. Cessna | 35 | Head | Laborer | Pennsylvania |
| 49 | Irene R. Cessna | 38 | wife-H | Yes | Pennsylvania |
| 50 | Annie Early | 61 | mother-in-law | Yes | Pennsylvania |
Related Census Records
Pedigree Summary
Harry + 5 siblings
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
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)