JZ
John Zimmerman — 1930 US Census Record
Model Tree available1930 United States Federal Census · Lancaster, Pennsylvania
Our Model Tree links this John Zimmerman across the 1910, 1920 and 1930 US Censuses in Lancaster, Pennsylvania (XGBoost, ~Confirmed), with identified parents Reuben & Maria — first a head (b.~1900), then head of a 4-person household.
Age 30
b. ~1900
Male
Head
Born: Pennsylvania
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Lancaster, Pennsylvania |
| Surname | Zimmerman |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 24 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 9 |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Farmer |
| Township / Ward | East Earl Township |
| Est. Birth Year | ~1900 |
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 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Zimmerman | Head | — | 30 | ~1900 |
| Clarence Zimmerman | Son | — | 2 | ~1928 |
| Norman Zimmerman | Son | — | 4 | ~1926 |
| Bertha Zimmerman | Spouse | — | 26 | ~1904 |
Census Appearances
1910
Lancaster, Pennsylvania
Son, age 10
Lancaster, Pennsylvania · implied b. ~1900 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Zimmerman |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Lancaster, Pennsylvania
Son, age 20
Lancaster, Pennsylvania · implied b. ~1900 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Zimmerman |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Lancaster, Pennsylvania
Head, age 30
Lancaster, Pennsylvania · implied b. ~1900 — 4 household members
| Surname | Zimmerman |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 24 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 9 |
| 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 John Zimmerman across 3 US Census years (1910, 1920 and 1930) in Lancaster, Pennsylvania, using XGBoost record linkage. Identified parents: father Reuben Zimmerman (~0.92 confidence) and mother Maria Zimmerman (~0.92 confidence) and father John Zimmerman (~0.92 confidence) and mother Mary Zimmerman (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Reuben Zimmerman
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Maria Zimmerman
b. ~1873
Source mother
● Household
· direct · ~0.92
Father
John Zimmerman
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Mary Zimmerman
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Zimmerman
Head · 1930 · age 30 · b. ~1900 · 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 — Lancaster, Pennsylvania
Open full size
1930 US Federal Census — Lancaster, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel2056:0543)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Ammon Brubaker | 47 | Head | Farmer | Pennsylvania |
| 52 | Maggie Brubaker | 50 | Wife | None | Pennsylvania |
| 53 | Henry Brubaker | 22 | Son | Laborer | Pennsylvania |
| 54 | Emma Brubaker | 25 | Daughter | None | Pennsylvania |
| 55 | Lizzie Brubaker | 17 | Daughter | Shirt Worker | Pennsylvania |
| 56 | Mary Brubaker | 17 | Daughter | None | Pennsylvania |
| 57 | Ella Brubaker | 15 | Daughter | None | Pennsylvania |
| 58 | David Brubaker | 16 | Son | None | Pennsylvania |
| 59 | Sam Hoover | 52 | Head | Farmer | Pennsylvania |
| 60 | Anna Hoover | 51 | Wife | None | Pennsylvania |
| 61 | Alice Hoover | 25 | Daughter | None | Pennsylvania |
| 62 | John Jr. Hoover | 20 | Son | None | Pennsylvania |
| 63 | Emma Hoover | 16 | Daughter | None | Pennsylvania |
| 64 | Lydia Hoover | 13 | Daughter | None | Pennsylvania |
| 65 | Mary Hoover | 8 | Daughter | None | Pennsylvania |
| 66 | David Ginder | 35 | Head | Farmer | Pennsylvania |
| 67 | Eva Ginder | 33 | Wife | None | Pennsylvania |
| 68 | David R. Ginder | 7 | Son | None | Pennsylvania |
| 69 | Betty J. Ginder | 2 | Daughter | None | Pennsylvania |
| 70 | Willis H. Farmer | 24 | Head | Farmer | Pennsylvania |
| 71 | Hattie N. Farmer | 26 | Wife | None | Pennsylvania |
| 72 | Harry Martin | 27 | Head | Farmer | Pennsylvania |
| 73 | Sarah Martin | 23 | Wife | None | Pennsylvania |
| 74 | Lydia Martin | 2 | Daughter | None | Pennsylvania |
| 75 | Mary Martin | 1 | Daughter | None | Pennsylvania |
| 76 | Abram Zimmerman | 40 | Head | Farmer | Pennsylvania |
| 77 | Lizzie Zimmerman | 40 | Wife | None | Pennsylvania |
| 78 | Lillie Zimmerman | 21 | Daughter | Shirt Worker | Pennsylvania |
| 79 | Anna Zimmerman | 20 | Daughter | None | Pennsylvania |
| 80 | Isaac Zimmerman | 18 | Son | None | Pennsylvania |
| 81 | Aaron Zimmerman | 16 | Son | Helper | Pennsylvania |
| 82 | Lizzie Zimmerman | 9 | Daughter | None | Pennsylvania |
| 83 | Abram Zimmerman | 11 | Son | None | Pennsylvania |
| 84 | Sarah Zimmerman | 8 | Daughter | None | Pennsylvania |
| 85 | Mary Zimmerman | 5 | Daughter | None | Pennsylvania |
| 86 | Mahlon Zimmerman | 3 | Son | None | Pennsylvania |
| 87 | Halsey Zimmerman | 0 | Son | None | Pennsylvania |
| 88 | Eli Penny | 49 | Head | Laborer | Pennsylvania |
| 89 | Alice Penny | 57 | Housekeeper | House Keeper | Pennsylvania |
| 90 | John Zimmerman THIS PERSON | 30 | Head | Farmer | Pennsylvania |
| 91 | Bertha Zimmerman | 26 | Wife | None | Pennsylvania |
| 92 | Norman Zimmerman | 4 | Son | None | Pennsylvania |
| 93 | Clarence Zimmerman | 2 | Son | None | Pennsylvania |
| 94 | John Zimmerman | 57 | Head | Farmer | Pennsylvania |
| 95 | Anna Zimmerman | 56 | Wife | None | Pennsylvania |
| 96 | Lizzie Zimmerman | 20 | Daughter | Shirt Worker | Pennsylvania |
| 97 | Lydia Zimmerman | 16 | Daughter | None | Pennsylvania |
| 98 | Mary Zimmerman | 14 | Daughter | None | Pennsylvania |
| 99 | John Zimmerman | 18 | Son | Plasterer | Pennsylvania |
| 100 | Abram Zimmerman | 28 | Son | Laborer | Pennsylvania |
Pedigree Summary
John
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)