HC
Harry Clark — 1930 US Census Record
Model Tree available1930 United States Federal Census · Philadelphia, Pennsylvania
Our Model Tree links this Harry Clark across the 1910, 1920 and 1930 US Censuses in Philadelphia, Pennsylvania (XGBoost, ~Confirmed), with identified parents Alice & Henry — first a son (b.~1899), then head of a 3-person household.
Age 31
b. ~1899
Male
Son
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Philadelphia, Pennsylvania |
| Surname | Clark |
| Given Name | Harry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | Helper |
| Industry | Iron Mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Helper |
| Township / Ward | Philadelphia City |
| Est. Birth Year | ~1899 |
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 1930 census.
| Name | Relation to head | Relative to Harry | Age | Birth yr |
|---|---|---|---|---|
| Henry Clark | Head | — | 65 | ~1865 |
| Maude Clark | Other | — | 64 | ~1866 |
| Harry Clark | Son | — | 31 | ~1899 |
Census Appearances
1910
Philadelphia, Pennsylvania
Son, age 11
Philadelphia, Pennsylvania · implied b. ~1899 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Harry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Philadelphia, Pennsylvania
Other, age 20
Philadelphia, Pennsylvania · implied b. ~1900 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Harry |
| Relationship to Head | Lodger |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Machinist |
| Industry | Bagnall Co |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Philadelphia, Pennsylvania
Son, age 31
Philadelphia, Pennsylvania · implied b. ~1899 — 3 household members
| Surname | Clark |
| Given Name | Harry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Helper |
| Industry | Iron Mill |
| 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 Clark across 3 US Census years (1910, 1920 and 1930) in Philadelphia, Pennsylvania, using XGBoost record linkage. Identified parents: mother Alice Clark (~0.92 confidence) and father Henry Clark (~0.92 confidence) and father Henry Clark (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Alice Clark
b. ~1863
Source mother
● Household
· direct · ~0.92
Father
Henry Clark
b. ~1863
Source father
● Household
· direct · ~0.92
Father
Henry Clark
b. ~1865
Source father
● Household
· direct · ~0.92
This person
Anchor record
Harry Clark
Son · 1930 · age 31 · b. ~1899 · Pennsylvania
★ You are viewing this record
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
49 people indexed on this census page (ia:1930:fifteenthcensus00reel2132:0098)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Guyon Gordon | 38 | Head | Accountant | Pennsylvania |
| 52 | Annie S. Gordon | 36 | Wife-H | — | Pennsylvania |
| 53 | Mary R. Gordon | 10 | Daughter | — | Pennsylvania |
| 54 | Henry C. Storm | 52 | Head | Filer | Pennsylvania |
| 55 | Isabella Storm | 45 | Wife-H | — | Pennsylvania |
| 56 | Elliot Storm | 21 | Daughter | — | Pennsylvania |
| 57 | Lillian Storm | 19 | Daughter | Stenographer | Pennsylvania |
| 58 | Henry Storm | 17 | Son | — | Pennsylvania |
| 59 | Frederick Storm | 14 | Son | — | Pennsylvania |
| 60 | Frank Dorsey | 32 | Head | Inspector | Pennsylvania |
| 61 | Cecilia Dorsey | 31 | Wife-H | — | Canada |
| 62 | Cecilia Dorsey | 7 | Daughter | — | Pennsylvania |
| 63 | John Smith | 53 | Head | Broker | Pennsylvania |
| 64 | Catherine B. Smith | 51 | Wife-H | — | Pennsylvania |
| 65 | Catherine M. Smith | 17 | Daughter | — | Pennsylvania |
| 66 | John Jr. Smith | 15 | Son | — | Pennsylvania |
| 67 | Quirk James Smith | 14 | Son | — | Pennsylvania |
| 68 | Eugene Smith | 13 | Son | — | Pennsylvania |
| 69 | Paul Lenk | 47 | Head | Manager | Germany |
| 70 | Frieda Lenk | 42 | Wife-H | — | Germany |
| 71 | Henry Graham | 48 | Head | Foreman | Pennsylvania |
| 72 | Martha Graham | 46 | Wife-H | — | Pennsylvania |
| 73 | Hazel Graham | 21 | Daughter | Clerk | Pennsylvania |
| 74 | James Graham | 19 | Son | Helper | Pennsylvania |
| 75 | Elsie Graham | 18 | Daughter | Visitor | Pennsylvania |
| 76 | Henry Graham | 17 | Son | Helper | Pennsylvania |
| 77 | Charles Graham | 15 | Son | — | Pennsylvania |
| 78 | Margaret Graham | 13 | Daughter | — | Pennsylvania |
| 79 | Katherine Graham | 11 | Daughter | — | Pennsylvania |
| 80 | William Graham | 9 | Son | — | Pennsylvania |
| 81 | Matilda Graham | 7 | Daughter | — | Pennsylvania |
| 82 | Anna Graham | 4 | Daughter | — | Pennsylvania |
| 83 | John Aith | 42 | Head | Supervisor | Germany |
| 84 | Arabella Aith | 42 | Wife-H | — | Pennsylvania |
| 85 | John H. Grouse | 60 | Head | Carpenter | Pennsylvania |
| 86 | Marion B. Grouse | 59 | Wife-H | — | Pennsylvania |
| 87 | John H. Lord | 15 | Nephew | Clerk | Pennsylvania |
| 88 | Henry Clark | 65 | Head | Patternmaker | Pennsylvania |
| 89 | Maude Clark | 64 | Wife-H | — | Pennsylvania |
| 90 | Harry Clark THIS PERSON | 31 | Son | Helper | Pennsylvania |
| 91 | Joseph Mckinley | 44 | Head | Merchant | Pennsylvania |
| 92 | Grace Mckinley | 46 | Wife-H | — | Maryland |
| 93 | Joseph Mckinley | 13 | Son | Estimator | Pennsylvania |
| 94 | Robert A. Mckinley | 11 | Son | — | Pennsylvania |
| 95 | Thomas Malley | 31 | Head | Doctor | Pennsylvania |
| 96 | Frances Malley | 24 | Wife-H | — | England |
| 97 | Marie Malley | 5 | Daughter | — | Pennsylvania |
| 98 | Frances Malley | 1 | Daughter | — | Pennsylvania |
| 99 | Minnie Johnson | 55 | Mother-in-law | — | England |
Pedigree Summary
Harry
Gen 1 · 3 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)