RC
Robert Campbell — 1930 US Census Record
Model Tree available1930 United States Federal Census · Mercer, Pennsylvania
Our Model Tree links this Robert Campbell across the 1920, 1930 and 1940 US Censuses in Mercer, Pennsylvania (XGBoost, ~Confirmed), with identified parents W & Norman — first a son (b.~1908), then head of a 7-person household.
Age 22
b. ~1908
Male
Son
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Mercer, Pennsylvania |
| Surname | Campbell |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | Machinist |
| Industry | Bessemer Gas Eng |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Machinist |
| Township / Ward | Grove City Borough |
| Est. Birth Year | ~1908 |
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.
7 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Ethel Campbell | Daughter | — | 25 | ~1905 |
| Helen Campbell | Daughter | — | 16 | ~1914 |
| Mary Campbell | Daughter | — | 20 | ~1910 |
| Norman Campbell | Head | — | 60 | ~1870 |
| Robert Campbell | Son | — | 22 | ~1908 |
| William Campbell | Son | — | 18 | ~1912 |
| Anna Campbell | Spouse | — | 52 | ~1878 |
Census Appearances
1920
Mercer, Pennsylvania
Son, age 12
Mercer, Pennsylvania · implied b. ~1908 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| 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 | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Mercer, Pennsylvania
Son, age 22
Mercer, Pennsylvania · implied b. ~1908 — 7 household members
| Surname | Campbell |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Machinist |
| Industry | Bessemer Gas Eng |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Mercer-County, Pennsylvania
Head, age 32
Mercer-County, Pennsylvania · implied b. ~1908 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Robt. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Country |
| 1935 Residence (County) | Beaver |
| Occupation | Machinist |
| Industry | National Engineering |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 326 |
| Highest Grade | No 4 |
| 1935 Residence | Pennsylvania |
| 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 Campbell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father W Campbell (~0.92 confidence) and father Norman Campbell (~0.92 confidence) and mother Anna Campbell (~0.92 confidence) and mother Anna Campbell (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
W Campbell
b. ~1870
Source father
● Household
· direct · ~0.92
Father
Norman Campbell
b. ~1870
Source father
● Household
· direct · ~0.92
Mother
Anna Campbell
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Anna Campbell
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Campbell
Son · 1930 · age 22 · b. ~1908 · Pennsylvania
★ You are viewing this record
Sibling
William Campbell
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Campbell
Sibling · 1930 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ethel Campbell
Sibling · 1930 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Campbell
Sibling · 1930 · age 16
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 — Mercer, Pennsylvania
Open full size
1930 US Federal Census — Mercer, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel2076:0441)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Mary Jahm | 75 | Head | — | Pennsylvania |
| 52 | Laura Cooper | 49 | Lodger | — | Pennsylvania |
| 53 | William Milliron | 50 | Head | Foreman | Pennsylvania |
| 54 | Bertha Milliron | 39 | Wife | — | Pennsylvania |
| 55 | Frank Milliron | 13 | Son | — | Pennsylvania |
| 56 | Richard Milliron | 12 | Son | — | Pennsylvania |
| 57 | William Milliron | 10 | Son | — | Pennsylvania |
| 58 | John S Malselum | 48 | Head | Custodian | New York |
| 59 | Clara Malselum | 48 | Wife | — | Pennsylvania |
| 60 | William Frish | 24 | Step-son | Store Keeper | Pennsylvania |
| 61 | Edward Frish | 20 | Step-son | — | Pennsylvania |
| 62 | George J Walter | 26 | Head | Mechanic | Pennsylvania |
| 63 | Bernice Walter | 26 | Wife | — | Pennsylvania |
| 64 | Leonard Lilley | 37 | Head | Officer | Pennsylvania |
| 65 | Helen Lilley | 34 | Wife | — | Pennsylvania |
| 66 | Billy Lilley | 6 | Son | — | Canada |
| 67 | Harris Brown | 53 | Head | Laborer | West Virginia |
| 68 | Mary A Brown | 32 | Wife | — | Ohio |
| 69 | Lila Brown | 18 | Daughter | Bookkeeper | Pennsylvania |
| 70 | Harris Jr Brown | 8 | Son | — | Pennsylvania |
| 71 | John Atwell | 62 | Head | Laborer | Pennsylvania |
| 72 | Sara Atwell | 33 | Wife | — | Pennsylvania |
| 73 | Arden Atwell | 17 | Son | — | Pennsylvania |
| 74 | Howard Wood | 28 | Head | Laborer | Pennsylvania |
| 75 | Sara Wood | 29 | Wife | — | Pennsylvania |
| 76 | Dorothy Wood | 5 | Daughter | — | Pennsylvania |
| 77 | John M Mcneish | 50 | Head | Laborer | Pennsylvania |
| 78 | Mary Mcneish | 39 | Wife | — | Pennsylvania |
| 79 | Maud Adams | 18 | Step-daughter | — | Pennsylvania |
| 80 | Paul Adams | 16 | Step-son | — | Pennsylvania |
| 81 | Betty Adams | 10 | Step-daughter | — | Pennsylvania |
| 82 | Donald Adams | 3 | Step-son | — | Pennsylvania |
| 83 | Dorothy Mcneish | 24 | Daughter | Saleslady | Pennsylvania |
| 84 | Ida Mccarl | 60 | Head | Cook | Pennsylvania |
| 85 | Irma Mccarl | 22 | Daughter | Stenographer | Pennsylvania |
| 86 | Alice Mccarl | 20 | Daughter | — | Pennsylvania |
| 87 | Fred Mccarl | 27 | Son | Laborer | Pennsylvania |
| 88 | Carl Forran | 25 | Head | Mechanic | Pennsylvania |
| 89 | Mary Forran | 27 | Wife | — | Pennsylvania |
| 90 | Norman Campbell | 60 | Head | Laborer | Pennsylvania |
| 91 | Anna Campbell | 52 | Wife | — | Pennsylvania |
| 92 | Ethel Campbell | 25 | Daughter | — | Pennsylvania |
| 93 | Robert Campbell THIS PERSON | 22 | Son | Machinist | Pennsylvania |
| 94 | Mary Campbell | 20 | Daughter | Secretary | Pennsylvania |
| 95 | William Campbell | 18 | Son | — | Pennsylvania |
| 96 | Helen Campbell | 16 | Daughter | — | Pennsylvania |
| 97 | Henry Double | 34 | Head | Laborer | Pennsylvania |
| 98 | Edith Double | 31 | Wife | — | Pennsylvania |
| 99 | Arthur Williams | 27 | Head | Dyer | Pennsylvania |
| 100 | Josephine Williams | 23 | Wife | — | Pennsylvania |
Related Census Records
Pedigree Summary
Robert + 4 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 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)