DM
David Murphy — 1930 US Census Record
Model Tree available1930 United States Federal Census · York, Pennsylvania
Our Model Tree links this David Murphy across the 1920, 1930 and 1940 US Censuses in York, Pennsylvania (XGBoost, ~Confirmed), with identified parents Grover & M — first a son (b.~1920), then head of a 6-person household.
Age 10
b. ~1920
Male
Son
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | York, Pennsylvania |
| Surname | Murphy |
| Given Name | David S |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Hanover Borough |
| Est. Birth Year | ~1920 |
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 1930 census.
| Name | Relation to head | Relative to David | Age | Birth yr |
|---|---|---|---|---|
| J Murphy | Son | — | 14 | ~1916 |
| S Murphy | Son | — | 12 | ~1918 |
| M Murphy | Head | — | 45 | ~1885 |
| Blanche Murphy | Spouse | — | 48 | ~1882 |
| David Murphy | Son | — | 10 | ~1920 |
| William Murphy | Son | — | 8 | ~1922 |
Census Appearances
1920
York, Pennsylvania
Son, age
York, Pennsylvania · implied b. ~1920 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murphy |
| Given Name | David |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
York, Pennsylvania
Son, age 10
York, Pennsylvania · implied b. ~1920 — 6 household members
| Surname | Murphy |
| Given Name | David S |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
York-County, Pennsylvania
Son, age 20
York-County, Pennsylvania · implied b. ~1920 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murphy |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | East York |
| 1935 Residence (County) | York |
| Occupation | new worker |
| Highest Grade | Hs 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 David Murphy across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Grover Murphy (~0.92 confidence) and father M Murphy (~0.92 confidence) and father Samuel Murphy (~0.92 confidence) and mother Beulah Murphy (~0.92 confidence) and mother Blanche Murphy (~0.92 confidence) and mother Blanche Murphy (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Grover Murphy
b. ~1885
Source father
● Household
· direct · ~0.92
Father
M Murphy
b. ~1885
Source father
● Household
· direct · ~0.92
Father
Samuel Murphy
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Beulah Murphy
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Blanche Murphy
b. ~1888
Source mother
● Household
· direct · ~0.92
Mother
Blanche Murphy
b. ~1882
Source mother
● Household
· direct · ~0.92
This person
Anchor record
David Murphy
Son · 1930 · age 10 · b. ~1920 · Pennsylvania
★ You are viewing this record
Sibling
S Murphy
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
J Murphy
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Murphy
Sibling · 1930 · 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
1930 US Federal Census — York, Pennsylvania
Open full size
1930 US Federal Census — York, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel2165rs:0555)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Kathlene Stryker | 10 | Daughter | — | Pennsylvania |
| 2 | Moseby J Bates | 64 | Head | Minister | Pennsylvania |
| 3 | Harriet Bates | 58 | Wife | — | Pennsylvania |
| 4 | Norman W Bates | 18 | Son | Electrician | Pennsylvania |
| 5 | Louise Eyer | 72 | Head | — | Pennsylvania |
| 6 | M G Banker | 42 | Head | Barber | Pennsylvania |
| 7 | Amelia S Banker | 43 | Wife | — | Pennsylvania |
| 8 | Kathalene M Banker | 17 | Daughter | — | Pennsylvania |
| 9 | Henry Weiley | 86 | Father-in-law | — | Pennsylvania |
| 10 | Wm H Milhorn | 64 | Head | Agent | Pennsylvania |
| 11 | Carrie M Milhorn | 60 | Wife | — | Pennsylvania |
| 12 | Nellie B Milhorn | 31 | Daughter | Bookkeeper | Pennsylvania |
| 13 | Ross J Black | 60 | Head | Doctor | Maryland |
| 14 | Emma E Black | 55 | Wife | — | New Jersey |
| 15 | William J Black | 18 | Son | — | Pennsylvania |
| 16 | Rebecca M Black | 10 | Daughter | — | Pennsylvania |
| 17 | Harvey F Lillich | 52 | Head | Mail Carrier | Pennsylvania |
| 18 | Mary E Lillich | 52 | Wife | — | Pennsylvania |
| 19 | Rosaline S Lillich | 27 | Daughter | Bookkeeper | Pennsylvania |
| 20 | Charles H Lillich | 21 | Son | — | Pennsylvania |
| 21 | M B Murphy | 45 | Head | Contractor | Pennsylvania |
| 22 | Blanche H Murphy | 48 | Wife | — | Pennsylvania |
| 23 | J Robert Murphy | 14 | Son | — | Pennsylvania |
| 24 | S Edward Murphy | 12 | Son | — | Pennsylvania |
| 25 | David S Murphy THIS PERSON | 10 | Son | — | Pennsylvania |
| 26 | William H Murphy | 8 | Son | — | Pennsylvania |
| 27 | Charles R Boose | 51 | Head | Laborer | Pennsylvania |
| 28 | Virginia M Boose | 49 | Wife | Manager | Pennsylvania |
| 29 | Amer Edward Boose | 22 | Son | Editor | Pennsylvania |
| 30 | William A Gann | 43 | Head | Contractor | Pennsylvania |
| 31 | Annie M Anthony | 72 | Mother-in-law | Housekeeper | Pennsylvania |
| 32 | Howard F Frey | 48 | Head | Carpenter | Maryland |
| 33 | Bertha G Frey | 40 | Wife | — | Maryland |
| 34 | Helen G Frey | 19 | Daughter | Laborer | Maryland |
| 35 | Harold B Frey | 7 | Son | — | Pennsylvania |
| 36 | Kenneth Q Frey | 4 | Son | — | Pennsylvania |
| 37 | Saranda Sample | 67 | Head | — | Maryland |
| 38 | William S Trone | 55 | Head | Employee | Pennsylvania |
| 39 | Anna K Trone | 53 | Wife | — | Pennsylvania |
| 40 | Lloyd H Glaze | 35 | Head | Salesman | North Carolina |
| 41 | Ruth M Glaze | 33 | Wife | — | Pennsylvania |
| 42 | William H Glaze | 6 | Son | — | Pennsylvania |
| 43 | William S Mortlock | 74 | Head | Carpenter | Maryland |
| 44 | Mary Mortlock | 45 | Daughter | Bookkeeper | Maryland |
| 45 | Harry S Wankle | 30 | Head | Trimmer | Pennsylvania |
| 46 | Beulah R Wankle | 28 | Wife | — | Pennsylvania |
| 47 | Harry Jr Wankle | 6 | Son | — | New Jersey |
| 48 | Betty E Wankle | 5 | Daughter | — | Pennsylvania |
| 49 | Irvin A Bair | 34 | Head | Shoe Cutter | Pennsylvania |
| 50 | Mary V Bair | 33 | Wife | — | Pennsylvania |
Pedigree Summary
David + 3 siblings
Gen 1 · 6 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)