HZ
Harry Zimmerman — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Harry Zimmerman across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Rachel — first a son (b.~1905), then head of a 4-person household.
Age 35
b. ~1905
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Zimmerman |
| Given Name | Harry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Millvale Borough |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Truck Driver |
| Industry | Coal & Construction |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 712 |
| Highest Grade | H-2 |
| 1935 Residence | Same House |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Truck Driver |
| Township / Ward | Millvale Borough |
| Est. Birth Year | ~1905 |
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 Harry | Age | Birth yr |
|---|---|---|---|---|
| Harry Zimmerman | Son | — | 35 | ~1905 |
| Theodore Zimmerman | Son | — | 48 | ~1892 |
| Rachel Zimmerman | Head | — | 79 | ~1861 |
| Ruth Zimmerman | Daughter | — | 27 | ~1913 |
Census Appearances
1920
Allegheny, Pennsylvania
Other, age 16
Allegheny, Pennsylvania · implied b. ~1904 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Zimmerman |
| Given Name | Harry |
| Relationship to Head | Brother |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Laborer |
| Industry | Steel 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
Allegheny, Pennsylvania
Son, age 26
Allegheny, Pennsylvania · implied b. ~1904 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Zimmerman |
| Given Name | Harry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Truck Driver |
| Industry | Local Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Son, age 35
Allegheny-County, Pennsylvania · implied b. ~1905 — 4 household members
| Surname | Zimmerman |
| Given Name | Harry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Millvale Borough |
| 1935 Residence (County) | Allegheny |
| Occupation | Truck Driver |
| Industry | Coal & Construction |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 712 |
| Highest Grade | H-2 |
| 1935 Residence | Same House |
| 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 Zimmerman across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Rachel Zimmerman (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Rachel Zimmerman
b. ~1861
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harry Zimmerman
Son · 1940 · age 35 · b. ~1905 · Pennsylvania
★ You are viewing this record
Sibling
Theodore Zimmerman
Sibling · 1940 · age 48
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Zimmerman
Sibling · 1940 · age 27
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
1940 US Federal Census — Allegheny-County, Pennsylvania
Open full size
1940 US Federal Census — Allegheny-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03411-00049)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Albin (X) Miklausic | 31 | Head | Policeman | Pennsylvania |
| 2 | Gertrude Miklausic | 25 | Wife | — | Pennsylvania |
| 3 | Donald Miklausic | 5 | Son | — | Pennsylvania |
| 4 | Richard Stevwing | 36 | Head | Laborer | Pennsylvania |
| 5 | Blanche Stevwing | 27 | Wife | — | Pennsylvania |
| 6 | Richard Stevwing | 7 | Son | — | Pennsylvania |
| 7 | Blanche Stevwing | 5 | Daughter | — | Pennsylvania |
| 8 | Robert Stevwing | 4 | Son | — | Pennsylvania |
| 9 | Raymond Stevwing | 2 | Son | — | Pennsylvania |
| 10 | Rachel Zimmerman | 79 | Head | — | Pennsylvania |
| 11 | Theodore Zimmerman | 48 | Son | Truck Driver | Pennsylvania |
| 12 | Harry Zimmerman THIS PERSON | 35 | Son | Truck Driver | Pennsylvania |
| 13 | Ruth (X) Zimmerman | 27 | Daughter | — | Pennsylvania |
| 14 | Emil (X) Reismier | 50 | Head | Crane-Man | Pennsylvania |
| 15 | Catherine Reismier | 38 | Wife | — | Ohio |
| 16 | Paul Reismier | 3 | Son | — | Pennsylvania |
| 17 | Albert Haldie | 24 | Head | Jackhammer Operator | Pennsylvania |
| 18 | Dorothy (X) Haldie | 20 | Wife | — | Pennsylvania |
| 19 | Albert Haldie | 1 | Son | — | Pennsylvania |
| 20 | Pearl (X) Klug | 52 | Head | — | Pennsylvania |
| 21 | Walter Klug | 19 | Son | Laborer | Pennsylvania |
| 22 | Extra Line Klug | 23 | Head | Log Painter | Pennsylvania |
| 23 | Michael Merzlack | 23 | Head | Log Painter | Pennsylvania |
| 24 | Evelyn Merzlack | 21 | Wife | — | Pennsylvania |
| 25 | Donald Merzlack | 0 | Son | — | Pennsylvania |
| 26 | Barbara (X) Solaris | 59 | Wife | — | Austria |
| 27 | Michael Solaris | 33 | Son | Roll Hand | Pennsylvania |
| 28 | Anna Solaris | 30 | Daughter | Twister | Pennsylvania |
| 29 | Thomas Solaris | 24 | Son | Dairy Hand | Pennsylvania |
| 30 | George Solaris | 19 | Son | Milkman | Pennsylvania |
| 31 | Catherine Solaris | 18 | Daughter | — | Pennsylvania |
| 32 | Charles Singer | 74 | Head | — | Pennsylvania |
| 33 | Edith (X) Singer | 59 | Wife | — | Pennsylvania |
| 34 | William Singer | 31 | Son | Bar Tender | Pennsylvania |
| 35 | Margaret Singer | 25 | Daughter | Cashier | Pennsylvania |
| 36 | Carl Singer | 22 | Son | — | Pennsylvania |
| 37 | Catherine Singer | 28 | Daughter-in-law | Waitress | Italy |
| 38 | Louise G. Singer | 4 | Grand-daughter | — | Pennsylvania |
| 39 | Missouri (X) Davis | 60 | Head | — | Pennsylvania |
| 40 | Clarence Davis | 25 | Son | Janitor | Pennsylvania |
Pedigree Summary
Harry + 2 siblings
Gen 1 · 1 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)