JH
John Harper — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Philadelphia, Pennsylvania
Our Model Tree links this John Harper across the 1920 and 1930 US Censuses in Philadelphia, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1919), then head of a 18-person household.
Age 11
b. ~1919
Male
Son
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Philadelphia, Pennsylvania |
| Surname | Harper |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Philadelphia City |
| Est. Birth Year | ~1919 |
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.
18 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Margaret Harper | Daughter | — | 16 | ~1914 |
| Marion Lewis | Daughter | — | 12 | ~1918 |
| Eleanor Lewis | Daughter | — | 1 | ~1929 |
| Betty Lewis | Daughter | — | 5 | ~1925 |
| Anna Harper | Daughter | — | 14 | ~1916 |
| Ruth Lewis | Daughter | — | 8 | ~1922 |
| Irene Lewis | Daughter | — | 3 | ~1927 |
| Robert Lewis | Head | — | 31 | ~1899 |
| William Harris | Other | — | 59 | ~1871 |
| Agnes Kone | Other | — | 57 | ~1873 |
| John Harper | Other | — | 49 | ~1881 |
| William Tendergrass | Other | — | 28 | ~1902 |
| Robert Lewis | Son | — | 7 | ~1923 |
| John Harper | Son | — | 11 | ~1919 |
| John Lewis | Son | — | 10 | ~1920 |
| Martin Kone | Son | — | 30 | ~1900 |
| Anna Harper | Spouse | — | 36 | ~1894 |
| Lillian Lewis | Spouse | — | 39 | ~1891 |
Census Appearances
1920
Philadelphia, Pennsylvania
Son, age 1
Philadelphia, Pennsylvania · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harper |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Philadelphia, Pennsylvania
Son, age 11
Philadelphia, Pennsylvania · implied b. ~1919 — 18 household members
| Surname | Harper |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| 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 |
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 Harper across 2 US Census years (1920 and 1930) in Philadelphia, Pennsylvania, using XGBoost record linkage.
Show:
This person
Anchor record
John Harper
Son · 1930 · age 11 · b. ~1919 · Pennsylvania
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Sibling
Marion Lewis
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Irene Lewis
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eleanor Lewis
Sibling · 1930 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Lewis
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Lewis
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Harper
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Lewis
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Harper
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Lewis
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Martin Kone
Sibling · 1930 · age 30
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 — Philadelphia, Pennsylvania
Open full size
1930 US Federal Census — Philadelphia, Pennsylvania
Page Contents
48 people indexed on this census page (ia:1930:fifteenthcensus00reel2128:1066)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Robert M. Lewis | 31 | Head | Clerk | Pennsylvania |
| 52 | Lillian A. Lewis | 39 | Wife | Saleswoman | Maryland |
| 53 | Marion A. Lewis | 12 | Daughter | — | Pennsylvania |
| 54 | John R. Lewis | 10 | Son | — | Pennsylvania |
| 55 | Ruth E. Lewis | 8 | Daughter | — | Pennsylvania |
| 56 | Robert M. Jr. Lewis | 7 | Son | — | Pennsylvania |
| 57 | Betty G. Lewis | 5 | Daughter | — | Pennsylvania |
| 58 | Irene E. Lewis | 3 | Daughter | — | Pennsylvania |
| 59 | Eleanor M. Lewis | 1 | Daughter | — | Pennsylvania |
| 60 | Agnes Miller Kone | 57 | — | — | Pennsylvania |
| 61 | Martin Miller Kone | 30 | Son | Clerk | Pennsylvania |
| 62 | John J. Harper | 49 | — | Watchman | Pennsylvania |
| 63 | Anna M. Harper | 36 | Wife | — | Pennsylvania |
| 64 | Margaret E. Harper | 16 | Daughter | — | Pennsylvania |
| 65 | Anna M. Harper | 14 | Daughter | — | Pennsylvania |
| 66 | John J. Harper THIS PERSON | 11 | Son | — | Pennsylvania |
| 67 | William Harris | 59 | Uncle | Teamster | New Jersey |
| 68 | William Tendergrass | 28 | Lodger | Electrician | Pennsylvania |
| 69 | Stewart M. Heistand | 56 | Head | Conductor | Pennsylvania |
| 70 | Lillian Heistand | 50 | Wife | — | England |
| 71 | Harry S. Heistand | 23 | Son | Bus Mechanic | Pennsylvania |
| 72 | Pauline A. Heistand | 19 | Daughter | — | Pennsylvania |
| 73 | Harvey J. Heistand | 16 | Son | — | Pennsylvania |
| 74 | Lillian Heistand | 9 | Daughter | — | Pennsylvania |
| 75 | Francis J. Kelly | 37 | Head | Manager | Pennsylvania |
| 76 | Beatrice G. Kelly | 34 | Wife | — | Pennsylvania |
| 77 | William F. Kelly | 12 | Son | — | Pennsylvania |
| 78 | Beatrice W. Kelly | 10 | Daughter | — | Pennsylvania |
| 79 | John E. Taylor | 62 | Father-in-law | Retired | Maryland |
| 80 | Anna A. Muhlbach | 57 | Head | — | Pennsylvania |
| 81 | J. Edgar Muhlbach | 31 | Son | Cutter | Pennsylvania |
| 82 | Florence M. Ellison | 33 | Daughter | Cashier-Register | Pennsylvania |
| 83 | Mary G. Ellison | 10 | Granddaughter | — | Pennsylvania |
| 84 | Mary H. Hart | 46 | Head | Housework | Pennsylvania |
| 85 | Albert J. Hart | 22 | Son | Clerk | Pennsylvania |
| 86 | Thomas Hart | 19 | Son | Helper | Pennsylvania |
| 87 | Eloise Hart | 17 | Daughter | Folder | Pennsylvania |
| 88 | Naomi Hart | 13 | Daughter | — | Pennsylvania |
| 89 | Phyllis Hart | 11 | Daughter | — | Pennsylvania |
| 90 | Clifton Hart | 8 | Son | — | Pennsylvania |
| 91 | June Hart | 3 | Daughter | — | Pennsylvania |
| 92 | Helen H. Wirth | 58 | Head | — | Germany |
| 93 | Edward J. Wirth | 37 | Son | — | Pennsylvania |
| 94 | Maximillian Wirth | 30 | Son | Helper | Pennsylvania |
| 95 | Alfred J. Wirth | 23 | Son | — | Pennsylvania |
| 96 | Regina Brennan | 17 | Granddaughter | Labeler | Pennsylvania |
| 97 | Henry W. Wirth | 33 | Head | Laborer | Pennsylvania |
| 98 | Emma Wirth | 23 | Wife | Labeler | 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)