JW
John Williamson — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this John Williamson across the 1900, 1910, 1920, 1930 and 1940 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1867), then head of a 4-person household.
Age 63
b. ~1867
Male
Head
Born: Pennsylvania
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Allegheny, Pennsylvania |
| Surname | Williamson |
| Given Name | John E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 63 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 33 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | Car Packer |
| Industry | Rail Road |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Car Packer |
| Township / Ward | Haysville Borough |
| Est. Birth Year | ~1867 |
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 |
|---|---|---|---|---|
| Margaret Williamson | Daughter | — | 9 | ~1921 |
| John Williamson | Head | — | 63 | ~1867 |
| Kathryn Moore | Other | — | 21 | ~1909 |
| Margaret Williamson | Other | — | 47 | ~1883 |
Census Appearances
1900
Allegheny, Pennsylvania
Head, age 32
Allegheny, Pennsylvania · implied b. ~1868 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williamson |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Birth Month | Nov |
| Birth Year | 1868 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | R. R. Agt & Post Master |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1910
Allegheny, Pennsylvania
Head, age 41
Allegheny, Pennsylvania · implied b. ~1869 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williamson |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Years Married | 20 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Station Agent |
| Industry | Railroad |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Allegheny, Pennsylvania
Head, age 51
Allegheny, Pennsylvania · implied b. ~1869 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williamson |
| Given Name | John H |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Station Agent |
| Industry | Rail Road |
| Class of Worker | S |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Head, age 63
Allegheny, Pennsylvania · implied b. ~1867 — 4 household members
| Surname | Williamson |
| Given Name | John E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 63 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 33 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Car Packer |
| Industry | Rail Road |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Head, age 74
Allegheny-County, Pennsylvania · implied b. ~1866 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williamson |
| Given Name | J. H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 74 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Kilbuck Township |
| 1935 Residence (County) | Allegheny |
| Income (1939) | 720 |
| Highest Grade | H-4 |
| 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 John Williamson across 5 US Census years (1900, 1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Williamson
Head · 1930 · age 63 · b. ~1867 · 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 — Allegheny, Pennsylvania
Open full size
1930 US Federal Census — Allegheny, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel1964:0878)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Michael Boyle | 71 | Head | Letter Carrier | Irish Free State |
| 2 | Mary Boyle | 69 | Wife-H | — | England |
| 3 | Fred B. Keith | 42 | Head | Supervisor | Ohio |
| 4 | Anna S. Keith | 41 | Wife-H | — | Pennsylvania |
| 5 | Donald P. Keith | 10 | Son | — | Ohio |
| 6 | Robert G. Keith | 9 | Son | — | Ohio |
| 7 | Arthur R. Keith | 7 | Son | — | Pennsylvania |
| 8 | Betty M. Keith | 5 | Daughter | — | Pennsylvania |
| 9 | Charles C. Purdie | 64 | Head | Carpenter | Pennsylvania |
| 10 | Sarah S. Purdie | 50 | Wife-H | — | Pennsylvania |
| 11 | Hollis A. Purdie | 27 | Son | Clerk | Pennsylvania |
| 12 | Hulda C. Purdie | 21 | Daughter | Clerk | Pennsylvania |
| 13 | Sarah H. Purdie | 12 | Daughter | — | Pennsylvania |
| 14 | Vincent O. Foreman | 28 | Head | Iron Fitter | England |
| 15 | Elizabeth Foreman | 35 | Wife-H | — | Pennsylvania |
| 16 | Joseph A. Foreman | 9 | Son | — | Pennsylvania |
| 17 | Margaret E. Foreman | 8 | Daughter | — | Pennsylvania |
| 18 | Sarah E. Foreman | 7 | Daughter | — | Pennsylvania |
| 19 | Vincent O. Jr. Foreman | 6 | Son | — | Pennsylvania |
| 20 | Mary E. Fogarty | 49 | Head | Telephone Operator | Pennsylvania |
| 21 | Edward Nightingale | 35 | Head | Machinist | England |
| 22 | Sophia D. Nightingale | 31 | Wife-H | — | Pennsylvania |
| 23 | Bessie A. Nightingale | 2 | Daughter | — | Pennsylvania |
| 24 | William S. Yattenburgh | 65 | Father-in-law | — | Pennsylvania |
| 25 | William Karcher | 63 | Head | Varnish Maker | Ohio |
| 26 | Lella S. Karcher | 53 | Wife-H | — | Pennsylvania |
| 27 | Florence M. Karcher | 29 | Daughter | Printer | Pennsylvania |
| 28 | Raymond B. Karcher | 65 | Head | Varnish Maker | Pennsylvania |
| 29 | Elizabeth W. Karcher | 41 | Wife-H | — | Pennsylvania |
| 30 | Marie M. Karcher | 25 | Daughter | — | Pennsylvania |
| 31 | Dallas E. Karcher | 22 | Son | Laborer | Pennsylvania |
| 32 | Raymond Jr. Karcher | 18 | Son | Laborer | Pennsylvania |
| 33 | Bernard R. Karcher | 14 | Son | — | Pennsylvania |
| 34 | Edward J. Spangler | 30 | Head | Doubler | Ohio |
| 35 | Sarah H. Spangler | 28 | Wife-H | — | Pennsylvania |
| 36 | George E. Smith | 25 | Head | Electrician | Pennsylvania |
| 37 | Violet M. Smith | 24 | Wife-H | — | Pennsylvania |
| 38 | Harry E. Smith | 2 | Son | — | Pennsylvania |
| 39 | Harry E. Spencer | 42 | Head | Inspector (Machinist) | Pennsylvania |
| 40 | Lula G. Spencer | 32 | Wife-H | — | Pennsylvania |
| 41 | Elijah H. Yarsons | 36 | Head | Police Man | Pennsylvania |
| 42 | Mildred C. Yarsons | 30 | Wife-H | — | Pennsylvania |
| 43 | Pearle Yarsons | 12 | Daughter | — | Pennsylvania |
| 44 | Mildred E. Yarsons | 8 | Daughter | — | Pennsylvania |
| 45 | Agro D. Yarsons | 5 | Son | — | Pennsylvania |
| 46 | John E. Williamson THIS PERSON | 63 | Head | Car Packer | Pennsylvania |
| 47 | Margaret U. Williamson | 47 | Wife-H | — | Pennsylvania |
| 48 | Margaret G. Williamson | 9 | Daughter | — | Pennsylvania |
| 49 | Kathryn D. Moore | 21 | Step-daughter | Saleslady | Pennsylvania |
| 50 | Arthur R. Jones | 22 | Head | Puncher | Pennsylvania |
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)