RD
Robert Davidson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Schuylkill-County, Pennsylvania
Our Model Tree links this Robert Davidson across the 1930 and 1940 US Censuses in Schuylkill-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1923), then head of a 9-person household.
Age 17
b. ~1923
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Schuylkill-County, Pennsylvania |
| Surname | Davidson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | New Boston |
| 1935 Residence (County) | Schuylkill |
| Additional Details | |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | New Boston |
| Est. Birth Year | ~1923 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Robert Davidson | Son | — | 17 | ~1923 |
| Helen Davidson | Daughter | — | 19 | ~1921 |
| Robert Davidson | Head | — | 46 | ~1894 |
| Harry Davidson | Son | — | 22 | ~1918 |
| John Davidson | Son | — | 14 | ~1926 |
| Charles Davidson | Son | — | 5 | ~1935 |
| Elizabeth Davidson | Daughter | — | 12 | ~1928 |
| Myrtle Davidson | Spouse | — | 44 | ~1896 |
| Raymond Davidson | Son | — | 1 | ~1939 |
Census Appearances
1930
Schuylkill, Pennsylvania
Son, age 7
Schuylkill, Pennsylvania · implied b. ~1923 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davidson |
| Given Name | Robert W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| 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
Schuylkill-County, Pennsylvania
Son, age 17
Schuylkill-County, Pennsylvania · implied b. ~1923 — 9 household members
| Surname | Davidson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | New Boston |
| 1935 Residence (County) | Schuylkill |
| Highest Grade | H-2 |
| 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 Robert Davidson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Davidson
Son · 1940 · age 17 · b. ~1923 · Pennsylvania
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Sibling
Harry Davidson
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Davidson
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Raymond Davidson
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Davidson
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Davidson
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Davidson
Sibling · 1940 · age 5
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 — Schuylkill-County, Pennsylvania
Open full size
1940 US Federal Census — Schuylkill-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03603-00103)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Michael Fuflock | 53 | Head | Laborer | Austria |
| 2 | Anna Fuflock | 51 | Wife | — | Pennsylvania |
| 3 | George Fuflock | 23 | Son | Laborer | Pennsylvania |
| 4 | Paul Fuflock | 20 | Son | — | Pennsylvania |
| 5 | John Pecika | 58 | Head | Laborer | Austria |
| 6 | Helen Pecika | 27 | Daughter | Machine Operator | Pennsylvania |
| 7 | John Pecika | 25 | Son | Bulldozer Runner | Pennsylvania |
| 8 | Michael Pecika | 24 | Son | Truck Driver | Pennsylvania |
| 9 | Julia Pecika | 16 | Daughter | — | Pennsylvania |
| 10 | Michael Simic | 33 | Son-in-law | Bulldozer Runner | Pennsylvania |
| 11 | Anna Simic | 31 | Daughter | — | Pennsylvania |
| 12 | Joseph Zelasny | 33 | Head | Miner | Pennsylvania |
| 13 | Helen Zelasny | 31 | Wife | — | Pennsylvania |
| 14 | Edward Zelasny | 11 | Son | — | Pennsylvania |
| 15 | Francis Zelasny | 10 | Son | — | Pennsylvania |
| 16 | Frances Zelasny | 8 | Daughter | — | Pennsylvania |
| 17 | Cecilia Zelasny | 5 | Daughter | — | Pennsylvania |
| 18 | Theresa Zelasny | 3 | Daughter | — | Pennsylvania |
| 19 | Joseph Lischak | 32 | Head | Miner | Pennsylvania |
| 20 | Anna Lischak | 33 | Wife | — | Pennsylvania |
| 21 | Joseph Lischak | 8 | Son | — | Pennsylvania |
| 22 | Bernard Lischak | 4 | Son | — | Pennsylvania |
| 23 | John Genovese | 35 | Head | Laborer | Pennsylvania |
| 24 | Mary Genovese | 25 | Wife | — | Pennsylvania |
| 25 | Mary Anne Genovese | 5 | Daughter | — | Pennsylvania |
| 26 | Helene Genovese | 3 | Daughter | — | Pennsylvania |
| 27 | John Jr Genovese | 1 | Son | — | Pennsylvania |
| 28 | Robert Davidson | 46 | Head | Laborer | Pennsylvania |
| 29 | Myrtle Davidson | 44 | Wife | — | Pennsylvania |
| 30 | Harry Davidson | 22 | Son | Laborer | Pennsylvania |
| 31 | Helen Davidson | 19 | Daughter | Servant | Pennsylvania |
| 32 | Robert Davidson THIS PERSON | 17 | Son | — | Pennsylvania |
| 33 | John Davidson | 14 | Son | — | Pennsylvania |
| 34 | Elizabeth Davidson | 12 | Daughter | — | Pennsylvania |
| 35 | Charles Davidson | 5 | Son | — | Pennsylvania |
| 36 | Raymond Davidson | 1 | Son | — | Pennsylvania |
| 37 | Antoinette Hadalsky | 65 | Head | — | Austria |
| 38 | Francis Hadalsky | 36 | Son | Laborer | Pennsylvania |
| 39 | Bertha Hadalsky | 33 | Daughter | Machine Operator | Pennsylvania |
| 40 | Julius Pnefsky | 47 | Head | Miner | Poland |
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)