JZ
John Zimmerman — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this John Zimmerman across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1874), then head of a 5-person household.
Age 66
b. ~1874
Male
Head
Born: Wisconsin
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Zimmerman |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 66 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Laborer |
| Industry | Steel Mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 988 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Occupation | Laborer |
| Township / Ward | Pittsburgh |
| Est. Birth Year | ~1874 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Zimmerman | Head | — | 66 | ~1874 |
| Jean Ebberts | Other | — | 42 | ~1898 |
| George Ebberts | Other | — | 42 | ~1898 |
| Walter Zimmerman | Son | — | 31 | ~1909 |
| Jessie Zimmerman | Spouse | — | 69 | ~1871 |
Census Appearances
1920
Allegheny, Pennsylvania
Head, age 43
Allegheny, Pennsylvania · implied b. ~1877 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Zimmerman |
| Given Name | John H. |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | roll turner |
| Industry | Steel mill |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1930
Allegheny, Pennsylvania
Head, age 55
Allegheny, Pennsylvania · implied b. ~1875 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Zimmerman |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| Age at First Marriage | 31 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Roll Turner |
| Industry | Steel Mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 77.50 |
| Radio Set | R |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Allegheny-County, Pennsylvania
Head, age 66
Allegheny-County, Pennsylvania · implied b. ~1874 — 5 household members
| Surname | Zimmerman |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 66 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Occupation | Laborer |
| Industry | Steel Mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 988 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
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 Zimmerman across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Zimmerman
Head · 1940 · age 66 · b. ~1874 · 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 — 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-t0627-03660-00750)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William Morrison | 20 | Brother-in-law | Repairman | Ohio |
| 2 | Louise Morrison | 35 | Sister | — | Ohio |
| 3 | John Zimmerman THIS PERSON | 66 | Head | Laborer | Wisconsin |
| 4 | Jessie Zimmerman | 69 | Wife | — | Pennsylvania |
| 5 | Walter Zimmerman | 31 | Son | Painter | Pennsylvania |
| 6 | George Ebberts | 42 | Step-son | Painter | Pennsylvania |
| 7 | Jean Ebberts | 42 | Step-daughter-in-law | — | Pennsylvania |
| 8 | Alice Lyons | 46 | Head | Clerk | Pennsylvania |
| 9 | Andrew Zaminska | 35 | Lodger | Cook | Pennsylvania |
| 10 | Harry Riegeck | 29 | Head | Truck Driver | Pennsylvania |
| 11 | Helen Riegeck | 25 | Wife | — | Pennsylvania |
| 12 | William Riegeck | 3 | Son | — | Pennsylvania |
| 13 | John Fuller | 34 | Head | Painter | West Virginia |
| 14 | Rita Fuller | 32 | Wife | — | Oklahoma |
| 15 | John Fuller | 0 | Son | — | Pennsylvania |
| 16 | Helen Rancher | 25 | Head | Waitress | Pennsylvania |
| 17 | Anne Hamidick | 22 | Lodger | Waitress | Pennsylvania |
| 18 | Madge Hothan | 54 | Head | — | Pennsylvania |
| 19 | Daisy Hothan | 56 | Sister | — | Pennsylvania |
| 20 | Stella Hothan | 32 | Neice | Social Worker | Pennsylvania |
| 21 | Rose Hothan | 87 | Mother | — | Pennsylvania |
| 22 | Aloysius Lofe | 43 | Head | Salesman | Pennsylvania |
| 23 | Mary Lofe | 46 | Wife | — | Pennsylvania |
| 24 | Jean Lofe | 18 | Daughter | Stenographer | Pennsylvania |
| 25 | Virginia Lofe | 12 | Daughter | — | Pennsylvania |
| 26 | Frank Kovalic | 28 | Nephew | Salesman | Pennsylvania |
| 27 | John Stahl | 64 | Head | — | Pennsylvania |
| 28 | Meta Stahl | 50 | Wife | — | Pennsylvania |
| 29 | Dorothy Stahl | 24 | Daughter | Stenographer | Pennsylvania |
| 30 | Charles Stahl | 19 | Son | Laborer | Pennsylvania |
| 31 | Lawrence Stahl | 18 | Son | Shipper | Pennsylvania |
| 32 | Paul Stahl | 14 | Son | — | Pennsylvania |
| 33 | John Stahl | 23 | Son | Rubber Molder | Pennsylvania |
| 34 | Lucille Stahl | 23 | Daughter-in-law | Call-Maker | Pennsylvania |
| 35 | William Crothers | 32 | Head | Mechanic Helper | Pennsylvania |
| 36 | Anna Crothers | 30 | Wife | — | Ohio |
| 37 | Mary Angert | 68 | Head | — | Pennsylvania |
| 38 | Margaret Crothers | 46 | Head | — | Pennsylvania |
| 39 | Maude Herron | 61 | Cousin | — | Pennsylvania |
| 40 | Guy Herron | 52 | Cousin | — | Pennsylvania |
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)