WM
Walter Martin — 1930 US Census Record
Model Tree available1930 United States Federal Census · Philadelphia, Pennsylvania
Our Model Tree links this Walter Martin across the 1910, 1920 and 1930 US Censuses in Philadelphia, Pennsylvania (XGBoost, ~Confirmed), with identified parents William & John — first a son (b.~1908), then head of a 5-person household.
Age 22
b. ~1908
Male
Son
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Philadelphia, Pennsylvania |
| Surname | Martin |
| Given Name | Walter |
| 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 | Helper |
| Industry | Ice Wagon |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Helper |
| Township / Ward | City Of Philadelphia |
| 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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Walter | Age | Birth yr |
|---|---|---|---|---|
| John Martin | Head | — | 54 | ~1876 |
| Edward Martin | Son | — | 16 | ~1914 |
| Walter Martin | Son | — | 22 | ~1908 |
| John Martin | Son | — | 8 | ~1922 |
| Mary Martin | Spouse | — | 47 | ~1883 |
Census Appearances
1910
Philadelphia, Pennsylvania
Son, age 1
Philadelphia, Pennsylvania · implied b. ~1909 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Walter |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Philadelphia, Pennsylvania
Son, age 11
Philadelphia, Pennsylvania · implied b. ~1909 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Walter |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Germany |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Philadelphia, Pennsylvania
Son, age 22
Philadelphia, Pennsylvania · implied b. ~1908 — 5 household members
| Surname | Martin |
| Given Name | Walter |
| 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 | Helper |
| Industry | Ice Wagon |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| 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 Walter Martin across 3 US Census years (1910, 1920 and 1930) in Philadelphia, Pennsylvania, using XGBoost record linkage. Identified parents: father William Martin (~0.92 confidence) and father John Martin (~0.92 confidence) and mother Elizabeth Martin (~0.92 confidence) and father Ezra Martin (~0.92 confidence) and mother Mary Martin (~0.92 confidence) and mother Sarah Martin (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Martin
b. ~1873
Source father
● Household
· direct · ~0.92
Father
John Martin
b. ~1876
Source father
● Household
· direct · ~0.92
Mother
Elizabeth Martin
b. ~1877
Source mother
● Household
· direct · ~0.92
Father
Ezra Martin
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Mary Martin
b. ~1883
Source mother
● Household
· direct · ~0.92
Mother
Sarah Martin
b. ~1883
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Walter Martin
Son · 1930 · age 22 · b. ~1908 · Pennsylvania
★ You are viewing this record
Sibling
Edward Martin
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Martin
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 — Philadelphia, Pennsylvania
Open full size
1930 US Federal Census — Philadelphia, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel2103:0631)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joseph Piccone | 27 | Head | Machinist | Pennsylvania |
| 2 | Helen Piccone | 27 | Wife | — | Pennsylvania |
| 3 | Mary Piccone | 5 | Daughter | — | Pennsylvania |
| 4 | Joseph Piccone | 1 | Son | — | Pennsylvania |
| 5 | Frank Strittmatter | 44 | Head | Dressmaking | Pennsylvania |
| 6 | Helen Strittmatter | 24 | Son | Shipping Clerk | Pennsylvania |
| 7 | Russell Strittmatter | 22 | Son | Estimator | Pennsylvania |
| 8 | Walter Strittmatter | 17 | Son | Apprentice | Pennsylvania |
| 9 | John Strittmatter | 15 | Son | — | Pennsylvania |
| 10 | Fred G. Hoetzer | 30 | Head | Carpenter | Bielefeld Germany |
| 11 | Martha Hoetzer | 28 | Wife | — | Bielefeld Germany |
| 12 | Janet Hoetzer | 5 | Daughter | — | Pennsylvania |
| 13 | Elizabeth Ryan | 27 | Head | Waitress | Pennsylvania |
| 14 | John Ryan | 12 | Son | — | Pennsylvania |
| 15 | Elizabeth Ryan | 10 | Daughter | — | Pennsylvania |
| 16 | Mary Ryan | 34 | Boarder | Patrolman | Pennsylvania |
| 17 | David Grier | 42 | Head | Pressman | Pennsylvania |
| 18 | Gertrude Grier | 40 | Wife | — | Pennsylvania |
| 19 | Gertrude Grier | 19 | Daughter | Operator | Pennsylvania |
| 20 | David Grier | 10 | Son | — | Pennsylvania |
| 21 | William Shoenich | 51 | Head | — | Pennsylvania |
| 22 | Margaret Shoenich | 35 | Daughter | Assembler | Pennsylvania |
| 23 | Robert Richard | 21 | Boarder | Marker | Pennsylvania |
| 24 | Kenneth Macdougall | 19 | Boarder | — | Pennsylvania |
| 25 | Catherine Macdougall | 18 | Boarder | — | Pennsylvania |
| 26 | William Longacre | 34 | Head | Driver | Pennsylvania |
| 27 | Edith Longacre | 20 | Wife | Inspector | Pennsylvania |
| 28 | William Schaffer | 57 | Head | Sorter | Pennsylvania |
| 29 | Elizabeth Schaffer | 50 | Wife | — | Pennsylvania |
| 30 | Edward Schaffer | 21 | Son | Foreman | Pennsylvania |
| 31 | Harvey Schaffer | 21 | Son | Puncher | Pennsylvania |
| 32 | Howard Schaffer | 15 | Son | — | Pennsylvania |
| 33 | William Schaffer | 10 | Son | — | Pennsylvania |
| 34 | William Martin | 27 | Head | Salesman | Pennsylvania |
| 35 | Alice Martin | 23 | Wife | — | Pennsylvania |
| 36 | Alice Martin | 4 | Daughter | — | Pennsylvania |
| 37 | Melvine Martin | 2 | Son | — | Pennsylvania |
| 38 | David Martin | 1 | Son | — | Pennsylvania |
| 39 | Harold Newton | 15 | Boarder | — | Pennsylvania |
| 40 | John Martin | 54 | Head | Oiler | Pennsylvania |
| 41 | Mary Martin | 47 | Wife | — | Pennsylvania |
| 42 | Walter Martin THIS PERSON | 22 | Son | Helper | Pennsylvania |
| 43 | Edward Martin | 16 | Son | Icer | Pennsylvania |
| 44 | John Martin | 8 | Son | — | Pennsylvania |
| 45 | Anthony Reilly | 26 | Head | Salesman | Pennsylvania |
| 46 | Anna Reilly | 29 | Wife | — | Pennsylvania |
| 47 | Joseph Reilly | 1 | Son | — | Pennsylvania |
| 48 | Thomas Barrett | 46 | Head | Plasterer | Pennsylvania |
| 49 | Nellie Barrett | 43 | Wife | — | Pennsylvania |
| 50 | Mary Barrett | 21 | Daughter | Stenog. | Pennsylvania |
Pedigree Summary
Walter + 2 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)