MC
Martha Campbell — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cambria, Pennsylvania
Our Model Tree links this Martha Campbell across the 1920 and 1930 US Censuses in Cambria, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1917), then head of a 14-person household.
Age 13
b. ~1917
Female
Daughter
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cambria, Pennsylvania |
| Surname | Campbell |
| Given Name | Martha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Nanty Glo Borough |
| Est. Birth Year | ~1917 |
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.
14 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Martha | Age | Birth yr |
|---|---|---|---|---|
| Samuel Campbell | Head | — | 49 | ~1881 |
| Dale Campbell | Son | — | 1 | ~1929 |
| Doris Campbell | Daughter | — | 5 | ~1925 |
| Milan Campbell | Son | — | 9 | ~1921 |
| Evelyn Campbell | Daughter | — | 8 | ~1922 |
| Martha Campbell | Daughter | — | 13 | ~1917 |
| Irvin Campbell | Son | — | 17 | ~1913 |
| Joyce Campbell | Daughter | — | 3 | ~1927 |
| Mamie Campbell | Spouse | — | 40 | ~1890 |
| Zelma Campbell | Daughter | — | 6 | ~1924 |
| Dean Campbell | Son | — | 14 | ~1916 |
| Leroy Campbell | Son | — | 16 | ~1914 |
| Milton Campbell | Son | — | 11 | ~1919 |
| Alice Campbell | Daughter | — | 19 | ~1911 |
Census Appearances
1920
Cambria, Pennsylvania
Daughter, age 2
Cambria, Pennsylvania · implied b. ~1918 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Martha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Cambria, Pennsylvania
Daughter, age 13
Cambria, Pennsylvania · implied b. ~1917 — 14 household members
| Surname | Campbell |
| Given Name | Martha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| 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 Martha Campbell across 2 US Census years (1920 and 1930) in Cambria, Pennsylvania, using XGBoost record linkage.
Show:
This person
Anchor record
Martha Campbell
Daughter · 1930 · age 13 · b. ~1917 · Pennsylvania
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Sibling
Alice Campbell
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Doris Campbell
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leroy Campbell
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Evelyn Campbell
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Irvin Campbell
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Zelma Campbell
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dean Campbell
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dale Campbell
Sibling · 1930 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Milan Campbell
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Milton Campbell
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joyce Campbell
Sibling · 1930 · age 3
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 — Cambria, Pennsylvania
Open full size
1930 US Federal Census — Cambria, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel2013:0382)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Elizabeth Kovach | 57 | Wife | — | Hungary |
| 2 | Frank Kovach | 21 | Son | Coal Loader | Pennsylvania |
| 3 | Charles Kovach | 18 | Son | — | Pennsylvania |
| 4 | Helen Pontic | 52 | Head | — | Austria |
| 5 | George Pontic | 17 | Son | None | Austria |
| 6 | Steven Pontic | 7 | Son | None | Pennsylvania |
| 7 | Meash Smith | 32 | Head | Cashier | Pennsylvania |
| 8 | Mary Smith | 33 | Wife | None | Colorado |
| 9 | Melvin Smith | 12 | Son | None | Ohio |
| 10 | John Smith | 8 | Son | None | Pennsylvania |
| 11 | Joella Smith | 4 | Daughter | None | Pennsylvania |
| 12 | Arthur Sr. Kemfer | 59 | Head | Agent | Pennsylvania |
| 13 | Gertrude Kemfer | 55 | Wife | — | Pennsylvania |
| 14 | Anna Kemfer | 15 | Daughter | — | Pennsylvania |
| 15 | Arthur Jr. Kemfer | 22 | Head | Truck Driver | Pennsylvania |
| 16 | Audrey Kemfer | 20 | Wife | — | Pennsylvania |
| 17 | Herman Dorce | 59 | Head | Coal Loader | Pennsylvania |
| 18 | Caroline Dorce | 56 | Wife | None | Pennsylvania |
| 19 | Melvin Johnson | 17 | Boarder | None | Pennsylvania |
| 20 | Kenneth Johnson | 13 | Boarder | None | Pennsylvania |
| 21 | William Zimmere | 26 | Boarder | Machinist | Pennsylvania |
| 22 | Walter Zimmere | 29 | Boarder | Motorman | Pennsylvania |
| 23 | Samuel Campbell | 49 | Head | Policeman | Pennsylvania |
| 24 | Mamie Campbell | 40 | Wife | None | Pennsylvania |
| 25 | Alice Campbell | 19 | Daughter | None | Pennsylvania |
| 26 | Irvin Campbell | 17 | Son | None | Pennsylvania |
| 27 | Leroy Campbell | 16 | Son | None | Pennsylvania |
| 28 | Dean Campbell | 14 | Son | None | Pennsylvania |
| 29 | Martha Campbell THIS PERSON | 13 | Daughter | None | Pennsylvania |
| 30 | Milton Campbell | 11 | Son | None | Pennsylvania |
| 31 | Milan Campbell | 9 | Son | None | Pennsylvania |
| 32 | Evelyn Campbell | 8 | Daughter | None | Pennsylvania |
| 33 | Zelma Campbell | 6 | Daughter | None | Pennsylvania |
| 34 | Doris Campbell | 5 | Daughter | None | Pennsylvania |
| 35 | Joyce Campbell | 3 | Daughter | None | Pennsylvania |
| 36 | Dale Campbell | 1 | Son | None | Pennsylvania |
| 37 | Patrick H. Dugan | 58 | Head | Clerk | Pennsylvania |
| 38 | Rose Dugan | 48 | Wife | None | Pennsylvania |
| 39 | Elizabeth Dugan | 17 | Daughter | None | Pennsylvania |
| 40 | Patrick Jr. Dugan | 15 | Son | None | Pennsylvania |
| 41 | Elsie Singer | 47 | Head | — | Pennsylvania |
| 42 | Paul Singer | 28 | Son | Coal Loader | Pennsylvania |
| 43 | Fred Singer | 25 | Son | Coal Loader | Pennsylvania |
| 44 | Louise Singer | 15 | Daughter | None | Pennsylvania |
| 45 | Joseph Garmanc | 60 | Head | Coal Loader | Austria |
| 46 | Annie Garmanc | 48 | Wife | None | Austria |
| 47 | Andrew Donaldson | 63 | Head | Laborer | Scotland |
| 48 | Mary Donaldson | 60 | Wife | None | Scotland |
| 49 | John Donaldson | 32 | Head | Coal Loader | Scotland |
| 50 | Mary Donaldson | 28 | Wife | None | 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)