RH
Robert Hoffman — 1930 US Census Record
Model Tree available1930 United States Federal Census · Philadelphia, Pennsylvania
Our Model Tree links this Robert Hoffman across the 1920, 1930 and 1940 US Censuses in Philadelphia, Pennsylvania (XGBoost, ~Confirmed), with identified parents Robert & Martha — first a son (b.~1913), then head of a 3-person household.
Age 17
b. ~1913
Male
Son
Born: Penna
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Philadelphia, Pennsylvania |
| Surname | Hoffman |
| Given Name | Robert G. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Penna |
| Father's Birthplace | Penna |
| Mother's Birthplace | Penna |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
| Township / Ward | Philadelphia City |
| Est. Birth Year | ~1913 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Robert Hoffman | Son | — | 17 | ~1913 |
| Robert Hoffman | Head | — | 45 | ~1885 |
| Martha Hoffman | Other | — | 43 | ~1887 |
Census Appearances
1920
Philadelphia, Pennsylvania
Son, age 7
Philadelphia, Pennsylvania · implied b. ~1913 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hoffman |
| Given Name | Robert Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Penna |
| Father's Birthplace | Penna |
| Mother's Birthplace | Penna |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
1930
Philadelphia, Pennsylvania
Son, age 17
Philadelphia, Pennsylvania · implied b. ~1913 — 3 household members
| Surname | Hoffman |
| Given Name | Robert G. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Penna |
| Father's Birthplace | Penna |
| Mother's Birthplace | Penna |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
1940
Philadelphia-County, Pennsylvania
Son, age 27
Philadelphia-County, Pennsylvania · implied b. ~1913 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Huffman |
| Given Name | Robert |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Penna |
| 1935 Residence (City) | Phila |
| 1935 Residence (County) | Philadelphia |
| Occupation | clerk |
| Industry | office |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1040 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
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 Robert Hoffman across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Robert Hoffman (~0.92 confidence) and mother Martha Hoffman (~0.92 confidence) and father George Huffman (~0.92 confidence) and mother Ethel Huffman (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Robert Hoffman
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Martha Hoffman
b. ~1886
Source mother
● Household
· direct · ~0.92
Father
George Huffman
b. ~1889
Source father
● Household
· direct · ~0.92
Mother
Ethel Huffman
b. ~1894
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Hoffman
Son · 1930 · age 17 · b. ~1913 · 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:fifteenthcensus00reel2132:0239)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Raphael Altman | 38 | Head | Fireman | District Columbia |
| 2 | Elsa Altman | 39 | Wife-H | — | Germany |
| 3 | George Altman | 18 | Son | Clerk | Penna |
| 4 | Raphael Altman | 9 | Son | — | Penna |
| 5 | Henry Di Pietro | 34 | Head | Salesman | Iowa |
| 6 | Cornelia Di Pietro | 34 | Wife-H | — | New York |
| 7 | Mary Hildebrand | 58 | Boarder | Nurse | Penna |
| 8 | Arthur Ingram | 34 | Head | Engineer | Texas |
| 9 | Mildred Ingram | 30 | Wife-H | — | Penna |
| 10 | Arthur Jr. Ingram | 6 | Son | — | Penna |
| 11 | William Bowler | 40 | Head | Engineer | Penna |
| 12 | Theresa Bowler | 36 | Wife-H | — | Penna |
| 13 | Rose Bowler | 11 | Daughter | — | Penna |
| 14 | Ada Bowler | 10 | Daughter | — | Penna |
| 15 | Thomas Larkin | 31 | Head | Salesman | Penna |
| 16 | Lilly M. Larkin | 29 | Wife-H | — | Maryland |
| 17 | Thomas Jr. Larkin | 3 | Son | — | Penna |
| 18 | Joseph Larkin | 1 | Son | — | Penna |
| 19 | James Mcmanus | 47 | Head | Deckhand | Penna |
| 20 | Susan Mcmanus | 41 | Wife-H | — | Penna |
| 21 | Francis P. Brusa | 55 | Head | Blacksmith | Penna |
| 22 | Martha Brusa | 54 | Wife-H | — | Penna |
| 23 | Francis M. Brusa | 29 | Daughter | Bookkeeper | Penna |
| 24 | Samuel Sorenson | 31 | Head | Manager | Penna |
| 25 | Elsie Sorenson | 32 | Wife-H | — | Penna |
| 26 | Herbert Sorenson | 7 | Son | — | Penna |
| 27 | Emma Green | 52 | Mother-in-law | — | Penna |
| 28 | Oscar Barth | 28 | Head | Woodworker | Austria Hungary |
| 29 | Helen Barth | 25 | Wife-H | Cigar Maker | Austria Hungary |
| 30 | Julia Krug | 36 | Mother-in-law | Cigar Maker | Austria Hungary |
| 31 | Frederick Nailer | 34 | Head | Fireman | Penna |
| 32 | Mary Nailer | 33 | Wife-H | — | Penna |
| 33 | Marion Nailer | 8 | Daughter | — | Penna |
| 34 | Thelma Nailer | 5 | Daughter | — | Penna |
| 35 | Frederick Boynton | 43 | Head | Driver | New York |
| 36 | Mary Boynton | 31 | Wife-H | — | Penna |
| 37 | Frederick Jr. Boynton | 13 | Son | — | Penna |
| 38 | Walter S. Berry | 37 | O | Solicitor | Penna |
| 39 | Pauline Berry | 31 | Wife-H | — | Penna |
| 40 | Joseph Berry | 2 | Son | — | Penna |
| 41 | John Mckinley | 69 | Head | Barber | Scotland |
| 42 | Florence Mckinley | 60 | Wife-H | — | England |
| 43 | Jessica Rea | 33 | Daughter | Clerk | Penna |
| 44 | Harris Rea | 9 | Grandson | — | Penna |
| 45 | Frederick Lonergan | 46 | Head | Officer | Penna |
| 46 | Agnes Lonergan | 37 | Wife-H | — | Penna |
| 47 | Robert G. Hoffman | 45 | Head | Clerk | Penna |
| 48 | Martha Hoffman | 43 | Wife-H | — | Penna |
| 49 | Robert G. Jr. Hoffman THIS PERSON | 17 | Son | — | Penna |
Pedigree Summary
Robert
Gen 1 · 4 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)