JW
John Wolf — 1940 US Census Record
Model Tree available1940 United States Federal Census · Philadelphia-County, Pennsylvania
Our Model Tree links this John Wolf across the 1920, 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Jacob & Esther — first a son (b.~1907), then head of a 4-person household.
Age 33
b. ~1907
Male
Son
Born: Russia
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Philadelphia-County, Pennsylvania |
| Surname | Wolf |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Russia |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Phila |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Manufacturer |
| Industry | Paper Box Factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 15612 |
| Highest Grade | C 2 |
| 1935 Residence | Same place |
| Birth Country | Russia |
| Birthplace (normalized) | russia |
| Occupation | Manufacturer |
| Township / Ward | Philadelphia |
| Est. Birth Year | ~1907 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Jacob Wolf | Head | — | 59 | ~1881 |
| Mary Lenhardt | Other | — | 29 | ~1911 |
| John Wolf | Son | — | 33 | ~1907 |
| Esther Wolf | Spouse | — | 57 | ~1883 |
Census Appearances
1920
Philadelphia, Pennsylvania
Son, age 13
Philadelphia, Pennsylvania · implied b. ~1907 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Wolf |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Russia |
| Year of Immigration | 1909 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Yiddish |
| Birth Country | Russia |
| Year of Naturalization | 1919 |
| Birthplace (normalized) | russia |
1930
Philadelphia, Pennsylvania
Son, age 24
Philadelphia, Pennsylvania · implied b. ~1906 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Wolf |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Russia |
| Naturalization Status | Naturalized |
| Year of Immigration | 1908 |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Occupation | Manufacturer |
| Industry | Paper Boxes |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Yiddish |
| Veteran | No |
| Birth Country | Russia |
| Birthplace (normalized) | russia |
1940
Philadelphia-County, Pennsylvania
Son, age 33
Philadelphia-County, Pennsylvania · implied b. ~1907 — 4 household members
| Surname | Wolf |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Russia |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Phila |
| Naturalization Status | Naturalized |
| Occupation | Manufacturer |
| Industry | Paper Box Factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 15612 |
| Highest Grade | C 2 |
| 1935 Residence | Same place |
| Birth Country | Russia |
| Birthplace (normalized) | russia |
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 Wolf across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Jacob Wolf (~0.92 confidence) and mother Esther Wolf (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Jacob Wolf
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Esther Wolf
b. ~1883
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Wolf
Son · 1940 · age 33 · b. ~1907 · Pennsylvania
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Philadelphia-County, Pennsylvania
Open full size
1940 US Federal Census — Philadelphia-County, Pennsylvania
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-03748-00517)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Moe Sykes | 58 | Head | Cleaner | Maryland |
| 42 | Blanche Sykes | 48 | Sister | Finisher | Penna |
| 43 | Josephine Spindel | 60 | Head | — | Penna |
| 44 | Jos. R. Williams | 47 | Boarder | Engraver | Penna |
| 45 | Of End | None | Block | — | #5 |
| 46 | Jacob Wolf | 59 | Head | Manufacturer | Russia |
| 47 | Esther Wolf | 57 | Wife | — | Russia |
| 48 | John Wolf THIS PERSON | 33 | Son | Manufacturer | Russia |
| 49 | Mary Lenhardt | 29 | Housekeeper | Housekeeper | Penna |
| 50 | Richard Rubin | 36 | Head | Agent | Penna |
| 51 | Doris Rubin | 38 | Wife | — | Penna Russia |
| 52 | Ronald Rubin | 8 | Son | — | Penna |
| 53 | Judith Ruth Rubin | 5 | Daughter | — | Penna |
| 54 | Elizabeth Pate | 19 | Maid | Housekeeper | North Carolina |
| 55 | Grant Sr. Reeder | 51 | Head | Salesmanager | Penna |
| 56 | Beatrice M. Reeder | 47 | Wife | — | Virginia |
| 57 | Grant Jr. Reeder | 22 | Son | Salesman | Penna |
| 58 | George F. Marsh | 73 | Father-in-law | — | Maryland |
| 59 | Elbert W. Cover | 53 | Head | Engineer | Penna |
| 60 | Bess Cover | 54 | Wife | — | Penna |
| 61 | Harry W. Evans | 26 | Step-Son | New Worker | Penna |
| 62 | John O. Wasserman | 36 | Son-in-law | Manager | Penna |
| 63 | Margaret G. Wasserman | 33 | Daughter | Bookkeeper | Penna |
| 64 | David Guss | 45 | Head | Manufacturer | Latvia |
| 65 | Fay Guss | 38 | Wife | — | Penna |
| 66 | Gloria Guss | 16 | Daughter | — | Penna |
| 67 | Leonard Guss | 13 | Son | — | Penna |
| 68 | Edward Smith | 28 | Head | Compositor | New York |
| 69 | Margaret Smith | 24 | Wife | — | Penna |
| 70 | James Smith | 1 | Son | — | Penna |
| 71 | Harry Sharer | 37 | Head | Meat Cutter | Tamaqua |
| 72 | Frances Sharer | 34 | Wife | — | Canada-English |
| 73 | Allan Sharer | 9 | Son | — | Penna |
| 74 | Isidore Pokras | 26 | Head | Driver Salesman | Penna |
| 75 | Rose Pokras | 24 | Wife | — | Penna |
| 76 | Bryn Pokras | 1 | Daughter | — | Penna |
| 77 | Harris Needleman | 25 | Head | Bar Tender | Penna |
| 78 | Helen Needleman | 23 | Wife | — | Penna |
Pedigree Summary
John
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)