JW
James Williamson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Lycoming-County, Pennsylvania
Our Model Tree links this James Williamson across the 1920, 1930 and 1940 US Censuses in Lycoming-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Mabel & Walter — first a son (b.~1919), then head of a 6-person household.
Age 21
b. ~1919
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lycoming-County, Pennsylvania |
| Surname | Williamson |
| Given Name | James W. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Old Lycoming |
| 1935 Residence (County) | Lycoming |
| Additional Details | |
| Occupation | sander |
| Industry | leather company |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 600 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Sander |
| Township / Ward | Old Lycoming |
| Est. Birth Year | ~1919 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| Walter Williamson | Head | — | 38 | ~1902 |
| Paul Williamson | Son | — | 5 | ~1935 |
| Holden Williamson | Son | — | 8 | ~1932 |
| James Williamson | Son | — | 21 | ~1919 |
| Eugene Williamson | Son | — | 16 | ~1924 |
| Maude Williamson | Spouse | — | 35 | ~1905 |
Census Appearances
1920
Lycoming, Pennsylvania
Son, age 1
Lycoming, Pennsylvania · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williamson |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Lycoming, Pennsylvania
Son, age 11
Lycoming, Pennsylvania · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williamson |
| Given Name | James A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Lycoming-County, Pennsylvania
Son, age 21
Lycoming-County, Pennsylvania · implied b. ~1919 — 6 household members
| Surname | Williamson |
| Given Name | James W. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Old Lycoming |
| 1935 Residence (County) | Lycoming |
| Occupation | sander |
| Industry | leather company |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 600 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| 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 James Williamson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Mabel Williamson (~0.92 confidence) and father Walter Williamson (~0.92 confidence) and mother Maud Williamson (~0.92 confidence) and mother Maude Williamson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Mabel Williamson
b. ~1902
Source mother
● Household
· direct · ~0.92
Father
Walter Williamson
b. ~1902
Source father
● Household
· direct · ~0.92
Mother
Maud Williamson
b. ~1903
Source mother
● Household
· direct · ~0.92
Mother
Maude Williamson
b. ~1905
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Williamson
Son · 1940 · age 21 · b. ~1919 · Pennsylvania
★ You are viewing this record
Sibling
Paul Williamson
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eugene Williamson
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Holden Williamson
Sibling · 1940 · age 8
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 — Lycoming-County, Pennsylvania
Open full size
1940 US Federal Census — Lycoming-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03566-00117)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Walter W. Williamson | 38 | head | Cutter | Pennsylvania |
| 42 | Maude A. Williamson | 35 | wife | — | Pennsylvania |
| 43 | James W. Williamson THIS PERSON | 21 | son | Sander | Pennsylvania |
| 44 | Eugene D. Williamson | 16 | son | — | Pennsylvania |
| 45 | Holden C. Williamson | 8 | son | — | Pennsylvania |
| 46 | Paul D. Williamson | 5 | son | — | Pennsylvania |
| 47 | Anna L. Bates | 55 | head | — | Pennsylvania |
| 48 | William W. Bates | 55 | son | Painter | Pennsylvania |
| 49 | Forest L. Bates | 33 | grandson | Leather Finisher | Pennsylvania |
| 50 | Forest L. Tilburg | 40 | head | Attendant | Pennsylvania |
| 51 | Beda W. Tilburg | 42 | wife | — | Pennsylvania |
| 52 | Samuel F. Tilburg | 19 | son | Attendant | Pennsylvania |
| 53 | William M. Wilson | 42 | head | Laborer | Pennsylvania |
| 54 | Hazel M. Wilson | 36 | wife | — | Pennsylvania |
| 55 | Arthur A. Rice | 46 | head | Laborer | Pennsylvania |
| 56 | Blanche V. Rice | 27 | wife | — | Ohio |
| 57 | George H. Rice | 71 | father | Laborer | Pennsylvania |
| 58 | Frank L. Krissman | 39 | head | Cutter | Pennsylvania |
| 59 | Stella E. Krissman | 39 | wife | — | Pennsylvania |
| 60 | Betty M. Krissman | 18 | daughter | — | Pennsylvania |
| 61 | Louise J. Krissman | 17 | daughter | — | Pennsylvania |
| 62 | Domenic J. Damarco | 51 | head | Gravedigger | Italy |
| 63 | Eugenia M. Damarco | 51 | wife | — | Italy |
| 64 | Dante D. Damarco | 27 | son | Musician | Italy |
| 65 | Virginia F. Damarco | 19 | daughter | — | Italy |
| 66 | Mario M. Damarco | 17 | son | — | Italy |
| 67 | Lillian Damarco | 10 | daughter | — | Pennsylvania |
| 68 | Helen J. Damarco | 11 | daughter | — | Pennsylvania |
| 69 | Charles O. Yost | 41 | head | Steam Fitter | Pennsylvania |
| 70 | Eva J. Yost | 44 | wife | — | Pennsylvania |
| 71 | Donald A. Yost | 14 | son | — | Pennsylvania |
| 72 | John Calvin Hileman | 58 | head | Freight Handler | Pennsylvania |
| 73 | Elizabeth Ann Hileman | 54 | wife | — | Newfoundland |
| 74 | Robert Edwin Hileman | 14 | son | — | Pennsylvania |
| 75 | Mary Ann Hileman | 15 | daughter | — | Pennsylvania |
| 76 | Samuel E. Lape | 45 | head | — | Pennsylvania |
| 77 | Mary E. Lape | 46 | wife | — | Pennsylvania |
| 78 | Dora Katherine Lape | 21 | daughter | Typist | Pennsylvania |
| 79 | Iris D. Lape | 10 | daughter | — | Pennsylvania |
| 80 | Paul A. Lape | 13 | son | — | Pennsylvania |
Pedigree Summary
James + 3 siblings
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 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)