RD
Robert Davidson — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Beaver, Pennsylvania
Our Model Tree links this Robert Davidson across the 1920 and 1930 US Censuses in Beaver, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1918), then head of a 11-person household.
Age 12
b. ~1918
Male
Son
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Beaver, Pennsylvania |
| Surname | Davidson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Beaver Falls |
| Est. Birth Year | ~1918 |
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.
11 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Betty Davidson | Daughter | — | 1 | ~1929 |
| William Davidson | Son | — | 14 | ~1916 |
| Roy Davidson | Head | — | 38 | ~1892 |
| George Davidson | Son | — | 5 | ~1925 |
| Ronald Davidson | Son | — | 6 | ~1924 |
| John Davidson | Son | — | 9 | ~1921 |
| Veda Davidson | Spouse | — | 36 | ~1894 |
| Helen Davidson | Daughter | — | 3 | ~1927 |
| Roy Davidson | Son | — | 16 | ~1914 |
| Robert Davidson | Son | — | 12 | ~1918 |
| Pauline Davidson | Daughter | — | ~1930 |
Census Appearances
1920
Beaver, Pennsylvania
Son, age 2
Beaver, Pennsylvania · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davidson |
| Given Name | Robert L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Beaver, Pennsylvania
Son, age 12
Beaver, Pennsylvania · implied b. ~1918 — 11 household members
| Surname | Davidson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| 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 |
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 (1920 and 1930) in Beaver, Pennsylvania, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Davidson
Son · 1930 · age 12 · b. ~1918 · Pennsylvania
★ You are viewing this record
Sibling
Pauline Davidson
Sibling · 1930 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Davidson
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Davidson
Sibling · 1930 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Roy Davidson
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Davidson
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ronald Davidson
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Davidson
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Davidson
Sibling · 1930 · 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
1930 US Federal Census — Beaver, Pennsylvania
Open full size
1930 US Federal Census — Beaver, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel1996:0361)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Elizabeth B. Lambert | 17 | Servant | Servant | Pennsylvania |
| 2 | Ralph Mullan | 38 | Head | Salesman | Pennsylvania |
| 3 | Evadha Mullan | 33 | Wife | — | Pennsylvania |
| 4 | Merth Mullan | 1 | Daughter | — | Pennsylvania |
| 5 | Harry A. Roselke | 35 | Head | General Contr. | Pennsylvania |
| 6 | Hazel E. Roselke | 32 | Wife | — | Pennsylvania |
| 7 | Elaine Roselke | 12 | Daughter | — | Ohio |
| 8 | Robert Roselke | 9 | Son | — | Ohio |
| 9 | Paul Roselke | 4 | Son | — | Pennsylvania |
| 10 | William A. Marmont | 41 | Head | Carpenter | Ohio |
| 11 | Clara F. Marmont | 43 | Wife | — | Pennsylvania |
| 12 | Jane F. Marmont | 9 | Daughter | — | Pennsylvania |
| 13 | Samuel F. Freed | 32 | Head | Laborer | Pennsylvania |
| 14 | Mabel Freed | 26 | Wife | — | Pennsylvania |
| 15 | Elmer H. Freed | 6 | Son | — | Pennsylvania |
| 16 | William Mcmaster | 57 | Head | Laborer | Ohio |
| 17 | Franklin Mcmaster | 30 | Son | — | Pennsylvania |
| 18 | Franklin Mcmaster | 20 | Son | Laborer | Pennsylvania |
| 19 | Ralph Mcmaster | 12 | Son | — | Pennsylvania |
| 20 | William F. Sechrist | 33 | Head | Mechanic | Pennsylvania |
| 21 | Bess M. Sechrist | 32 | Wife | — | Pennsylvania |
| 22 | Robert H. Sechrist | 11 | Son | — | Pennsylvania |
| 23 | Betty Jean Sechrist | 8 | Daughter | — | Pennsylvania |
| 24 | Elizabeth Sechrist | 69 | Mother | Servant | Pennsylvania |
| 25 | Roy J. Davidson | 38 | Head | Floral Shop | Pennsylvania |
| 26 | Veda Davidson | 36 | Wife | — | Pennsylvania |
| 27 | Roy Davidson | 16 | Son | — | Pennsylvania |
| 28 | William Davidson | 14 | Son | — | Pennsylvania |
| 29 | Robert Davidson THIS PERSON | 12 | Son | — | Pennsylvania |
| 30 | John Davidson | 9 | Son | — | Pennsylvania |
| 31 | Ronald Davidson | 6 | Son | — | Pennsylvania |
| 32 | George Davidson | 5 | Son | — | Pennsylvania |
| 33 | Helen Davidson | 3 | Daughter | — | Pennsylvania |
| 34 | Betty Davidson | 1 | Daughter | — | Pennsylvania |
| 35 | Pauline Davidson | 0 | Daughter | — | Pennsylvania |
| 36 | James J. Davidson | 45 | Head | Watchman | Pennsylvania |
| 37 | Anna Davidson | 63 | Wife | — | Pennsylvania |
| 38 | Joseph Davidson | 23 | Son | Proprietor | Pennsylvania |
| 39 | Joe Gallo | 40 | Head | Laborer | Italy |
| 40 | Rose Gallo | 35 | Wife | — | Pennsylvania |
| 41 | Harry A. Campbell | 28 | Head | Laborer | Ohio |
| 42 | Wilma M. Campbell | 22 | Wife | — | Ohio |
| 43 | Robert A. Campbell | 4 | Son | — | Pennsylvania |
| 44 | Raymond G. Jewell | 15 | Nephew | — | Pennsylvania |
| 45 | Anna C. Balsyerd | 41 | Head | — | Pennsylvania |
| 46 | James G. Balsyerd | 10 | Son | — | Pennsylvania |
| 47 | Margaret J. Balsyerd | 7 | Daughter | — | Pennsylvania |
| 48 | J. Merle Balsyerd | 5 | Son | — | Pennsylvania |
| 49 | June Tw. Balsyerd | 2 | Daughter | — | Pennsylvania |
| 50 | George Symonds | 49 | Head | Painter | 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)