JG
Joseph Griffin — 1930 US Census Record
Model Tree available1930 United States Federal Census · Philadelphia, Pennsylvania
Our Model Tree links this Joseph Griffin across the 1910, 1920 and 1930 US Censuses in Philadelphia, Pennsylvania (XGBoost, ~Confirmed), with identified parents Edward & Joseph — first a son (b.~1909), then head of a 10-person household.
Age 21
b. ~1909
Male
Son
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Philadelphia, Pennsylvania |
| Surname | Griffin |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | Grader |
| Industry | Lumbering Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Grader |
| Township / Ward | Philadelphia City |
| Est. Birth Year | ~1909 |
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.
10 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Joseph | Age | Birth yr |
|---|---|---|---|---|
| Theresa Griffin | Daughter | — | 2 | ~1928 |
| James Griffin | Son | — | 18 | ~1912 |
| Katherine Griffin | Other | — | 45 | ~1885 |
| Edward Griffin | Son | — | 19 | ~1911 |
| Helen Griffin | Daughter | — | 5 | ~1925 |
| Edward Griffin | Head | — | 48 | ~1882 |
| Joseph Griffin | Son | — | 21 | ~1909 |
| Mary Griffin | Daughter | — | 14 | ~1916 |
| John Griffin | Son | — | 11 | ~1919 |
| Anna Griffin | Daughter | — | 16 | ~1914 |
Census Appearances
1910
Philadelphia, Pennsylvania
Son, age
Philadelphia, Pennsylvania · implied b. ~1910 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Griffin |
| Given Name | Joseph |
| 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 |
1920
Philadelphia, Pennsylvania
Son, age 10
Philadelphia, Pennsylvania · implied b. ~1910 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Griffin |
| Given Name | Joseph |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| 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
Philadelphia, Pennsylvania
Son, age 21
Philadelphia, Pennsylvania · implied b. ~1909 — 10 household members
| Surname | Griffin |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Grader |
| Industry | Lumbering Co. |
| 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 Joseph Griffin across 3 US Census years (1910, 1920 and 1930) in Philadelphia, Pennsylvania, using XGBoost record linkage. Identified parents: father Edward Griffin (~0.92 confidence) and father Joseph Griffin (~0.92 confidence) and father Josiah Griffin (~0.92 confidence) and mother Henrietta Griffin (~0.92 confidence) and mother Margaret Griffin (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Edward Griffin
b. ~1882
Source father
● Household
· direct · ~0.92
Father
Joseph Griffin
b. ~1870
Source father
● Household
· direct · ~0.92
Father
Josiah Griffin
b. ~1876
Source father
● Household
· direct · ~0.92
Mother
Henrietta Griffin
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Margaret Griffin
b. ~1877
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Joseph Griffin
Son · 1930 · age 21 · b. ~1909 · Pennsylvania
★ You are viewing this record
Sibling
Edward Griffin
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Griffin
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Griffin
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Griffin
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Griffin
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Griffin
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Theresa Griffin
Sibling · 1930 · age 2
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:fifteenthcensus00reel2139rs:0087)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Annie Lynch | 40 | Head | Servant | Minnesota |
| 2 | Emma H Lynch | 21 | Daughter | — | New Jersey |
| 3 | John Lynch | 15 | Son | Candy Maker | Pennsylvania |
| 4 | Charles Lynch | 14 | Son | — | Pennsylvania |
| 5 | Rose Deal | 42 | Head-H | — | Pennsylvania |
| 6 | James Deal | 17 | Son | Truck Driver | Pennsylvania |
| 7 | Joseph Deal | 10 | Son | — | Pennsylvania |
| 8 | Robert Deal | 7 | Son | — | Pennsylvania |
| 9 | Harry Campbell | 31 | Head | Salesman | Pennsylvania |
| 10 | Mary Campbell | 31 | Wife-H | — | Pennsylvania |
| 11 | Catherine Campbell | 7 | Daughter | — | Pennsylvania |
| 12 | William Campbell | 6 | Son | — | Pennsylvania |
| 13 | Florence Campbell | 5 | Daughter | — | Pennsylvania |
| 14 | Harry Campbell | 2 | Son | — | Pennsylvania |
| 15 | John Lang | 45 | Head | Body Maker | Pennsylvania |
| 16 | Mary Lang | 41 | Wife-H | — | Pennsylvania |
| 17 | John J. Jr. Lang | 16 | Son | — | Pennsylvania |
| 18 | David Lang | 15 | Son | — | Pennsylvania |
| 19 | Joseph L. Lang | 12 | Son | — | Pennsylvania |
| 20 | Anna L. Lang | 10 | Daughter | — | Pennsylvania |
| 21 | Joseph Staub | 46 | Head | Farmer | Pennsylvania |
| 22 | Mary Staub | 44 | Wife-H | — | Pennsylvania |
| 23 | Joseph Beamish | 44 | Head | Loader | Pennsylvania |
| 24 | Ada Beamish | 36 | Wife-H | — | Pennsylvania |
| 25 | Charles Beamish | 15 | Son | — | Pennsylvania |
| 26 | Joseph Beamish | 13 | Son | — | Pennsylvania |
| 27 | John Beamish | 10 | Son | — | Pennsylvania |
| 28 | Harry G. Forrall | 50 | Head | Weaver | England |
| 29 | Nellie Forrall | 49 | Wife-H | — | England |
| 30 | Harry Forrall | 18 | Son | Topper | Pennsylvania |
| 31 | June Forrall | 12 | Daughter | — | Pennsylvania |
| 32 | Edward J. Griffin | 48 | Head | Steam Fitter | Pennsylvania |
| 33 | Katherine Griffin | 45 | Wife-H | — | Pennsylvania |
| 34 | Joseph Griffin THIS PERSON | 21 | Son | Grader | Pennsylvania |
| 35 | Edward Griffin | 19 | Son | Machinist | Pennsylvania |
| 36 | James Griffin | 18 | Son | Beamer | Pennsylvania |
| 37 | Anna Griffin | 16 | Daughter | — | Pennsylvania |
| 38 | Mary Griffin | 14 | Daughter | — | Pennsylvania |
| 39 | John Griffin | 11 | Son | — | Pennsylvania |
| 40 | Helen Griffin | 5 | Daughter | — | Pennsylvania |
| 41 | Theresa Griffin | 2 | Daughter | — | Pennsylvania |
| 42 | Leslie Ware | 49 | Head | Shipper | England |
| 43 | Ida L. Ware | 46 | Wife-H | — | Rhode Island |
| 44 | Alice Ware | 19 | Daughter | Phone Operator | Pennsylvania |
| 45 | Edith Ware | 18 | Daughter | Topper | Pennsylvania |
| 46 | William Ware | 16 | Son | — | Pennsylvania |
| 47 | Frank Ware | 14 | Son | — | Pennsylvania |
| 48 | Marion Ware | 6 | Daughter | — | Pennsylvania |
| 49 | Joseph Halliday | 42 | Head | Booker | Pennsylvania |
| 50 | Mary Halliday | 37 | Wife-H | — | Pennsylvania |
Related Census Records
Pedigree Summary
Joseph + 7 siblings
Gen 1 · 5 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)