JL
John Lang — 1940 US Census Record
Model Tree available1940 United States Federal Census · Bucks-County, Pennsylvania
Our Model Tree links this John Lang across the 1920, 1930 and 1940 US Censuses in Bucks-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Louis & Mary — first a head (b.~1900), then head of a 6-person household.
Age 40
b. ~1900
Male
Head
Born: Austria
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Bucks-County, Pennsylvania |
| Surname | Lang |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Austria |
| 1935 Residence (City) | Quakertown Borough |
| 1935 Residence (County) | Bucks |
| Naturalization Status | Alien |
| Additional Details | |
| Occupation | Knitter |
| Industry | Hosiery Mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1935 |
| Highest Grade | No 5 |
| 1935 Residence | Same Place |
| Birth Country | Austria |
| Birthplace (normalized) | austria |
| Occupation | Knitter |
| Township / Ward | Quakertown Borough |
| 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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Edith Lang | Daughter | — | 14 | ~1926 |
| Helen Lang | Daughter | — | 8 | ~1932 |
| John Lang | Head | — | 40 | ~1900 |
| Eugene Lang | Son | — | 11 | ~1929 |
| John Lang | Son | — | 12 | ~1928 |
| Edith Lang | Spouse | — | 40 | ~1900 |
Census Appearances
1920
Philadelphia, Pennsylvania
Son, age 21
Philadelphia, Pennsylvania · implied b. ~1899 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lang |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Austria |
| Year of Immigration | 1902 |
| Naturalization Status | Alien |
| Father's Birthplace | Austria |
| Mother's Birthplace | Austria |
| Occupation | Electrician |
| Industry | Mill |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Austrian |
| Birth Country | Austria |
| Birthplace (normalized) | austria |
1930
Philadelphia, Pennsylvania
Head, age 30
Philadelphia, Pennsylvania · implied b. ~1900 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lang |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Austria |
| Naturalization Status | Naturalized |
| Year of Immigration | 1902 |
| Age at First Marriage | 23 |
| Father's Birthplace | Austria |
| Mother's Birthplace | Austria |
| Occupation | Knitter |
| Industry | Hosiery Mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | German |
| Home Owned/Rented | O |
| Home Value / Rent | 6500 |
| Radio Set | R |
| Veteran | No |
| Birth Country | Austria |
| Birthplace (normalized) | austria |
1940
Bucks-County, Pennsylvania
Head, age 40
Bucks-County, Pennsylvania · implied b. ~1900 — 6 household members
| Surname | Lang |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Austria |
| 1935 Residence (City) | Quakertown Borough |
| 1935 Residence (County) | Bucks |
| Naturalization Status | Alien |
| Occupation | Knitter |
| Industry | Hosiery Mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1935 |
| Highest Grade | No 5 |
| 1935 Residence | Same Place |
| Birth Country | Austria |
| Birthplace (normalized) | austria |
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 Lang across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Louis Lang (~0.92 confidence) and mother Mary Lang (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Louis Lang
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Mary Lang
b. ~1875
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Lang
Head · 1940 · age 40 · 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
1940 US Federal Census — Bucks-County, Pennsylvania
Open full size
1940 US Federal Census — Bucks-County, Pennsylvania
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-03446-00726)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Rose Rantz | 29 | Wife | — | Germany |
| 42 | Phyllis Rantz | 4 | Daughter | — | Pennsylvania |
| 43 | William Ruth | 69 | Head | Music Teacher | Pennsylvania |
| 44 | Jack Young | 35 | Head | Merchant | Pennsylvania |
| 45 | Mildred Young | 25 | Wife | — | Pennsylvania |
| 46 | Walter S. Longworth | 67 | Head | Foreman | Pennsylvania |
| 47 | Estelle M. Longworth | 52 | Wife | — | Pennsylvania |
| 48 | George Rich | 69 | Lodger | — | Massachusetts |
| 49 | John Lang THIS PERSON | 40 | Head | Knitter | Austria |
| 50 | Edith Lang | 40 | Wife | — | Pennsylvania |
| 51 | Edith Lang | 14 | Daughter | — | Pennsylvania |
| 52 | John Lang | 12 | Son | — | Pennsylvania |
| 53 | Eugene Lang | 11 | Son | — | Pennsylvania |
| 54 | Helen Lang | 8 | Daughter | — | Pennsylvania |
| 56 | Cecilia Guignard | 65 | Head | Sewer | Pennsylvania |
| 57 | Marshall Stoneback | 50 | Lodger | — | Pennsylvania |
| 58 | Coleman Snyder | 44 | Head | Hauling | Pennsylvania |
| 59 | Mildred Snyder | 21 | Daughter | Waitress | Pennsylvania |
| 60 | Russell Snyder | 19 | Son | Meat Cutter | Pennsylvania |
| 61 | Annie P. Long | 34 | Head | Topper | Pennsylvania |
| 62 | Anna Marie Long | 16 | Daughter | — | Pennsylvania |
| 63 | Annie Blank | 75 | Grandmother | — | Pennsylvania |
| 64 | Harris Lewis | 71 | Head | Laborer | Pennsylvania |
| 65 | Agnes Lewis | 68 | Wife | — | Pennsylvania |
| 66 | Russell Lewis | 32 | Son | Silk Thrower | Pennsylvania |
| 67 | Kate Lewis | 48 | Daughter | Sewer | Pennsylvania |
| 68 | Henry O. Roder | 64 | Head | Janitor | Pennsylvania |
| 69 | Emma J. Roder | 51 | Wife | Sewer | Pennsylvania |
| 70 | Rachel Roder | 15 | Daughter | — | Pennsylvania |
| 71 | Harriet Allen | 73 | Mother-in-law | — | Pennsylvania |
| 72 | Lalonde Roder | 27 | Head | Sales | Pennsylvania |
| 73 | Ruth Roder | 28 | Wife | — | Pennsylvania |
| 74 | Claude Roder | 10 | Son | — | Pennsylvania |
| 75 | Helen Roder | 7 | Daughter | — | Pennsylvania |
| 76 | Myron Mcelroy | 61 | Head | Fireman | Pennsylvania |
| 77 | Esther Mcelroy | 57 | Wife | — | Pennsylvania |
| 78 | Stella Bader | 38 | Daughter | Trimmer | Pennsylvania |
| 79 | Roland Bader | 37 | Son-in-law | Machinist | Pennsylvania |
| 80 | Richard Bader | 10 | Grandson | — | Pennsylvania |
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)