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John Mcmullen — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Philadelphia, Pennsylvania
Our Model Tree links this John Mcmullen across the 1930 and 1940 US Censuses in Philadelphia, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1921), then head of a 10-person household.
Age 9
b. ~1921
Male
Son
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Philadelphia, Pennsylvania |
| Surname | McMullen |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Northern Ireland |
| Mother's Birthplace | Northern Ireland |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | City Of Philadelphia |
| Est. Birth Year | ~1921 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| George Rostron | Other | — | 41 | ~1889 |
| Joseph Mcmullen | Son | — | 8 | ~1922 |
| John Mcmullen | Head | — | 39 | ~1891 |
| Agnes Mcmullen | Daughter | — | 11 | ~1919 |
| Francis Mcmullen | Son | — | 7 | ~1923 |
| Nellie Mcmullen | Spouse | — | 37 | ~1893 |
| John Mcmullen | Son | — | 9 | ~1921 |
| James Mcmullen | Son | — | 12 | ~1918 |
| Mary Mcmullen | Daughter | — | 13 | ~1917 |
| Hugh Mcmullen | Son | — | 5 | ~1925 |
Census Appearances
1930
Philadelphia, Pennsylvania
Son, age 9
Philadelphia, Pennsylvania · implied b. ~1921 — 10 household members
| Surname | McMullen |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Northern Ireland |
| Mother's Birthplace | Northern Ireland |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Philadelphia-County, Pennsylvania
Son, age 19
Philadelphia-County, Pennsylvania · implied b. ~1921 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McMullin |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Occupation | Mechanical Appren. |
| Industry | Paper Box Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 404 |
| Highest Grade | No 8 |
| 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 John Mcmullen across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Mcmullen
Son · 1930 · age 9 · b. ~1921 · Pennsylvania
★ You are viewing this record
Sibling
Francis Mcmullen
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hugh Mcmullen
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Mcmullen
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Mcmullen
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Mcmullen
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Agnes Mcmullen
Sibling · 1930 · age 11
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
49 people indexed on this census page (ia:1930:fifteenthcensus00reel2101:0659)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Emma Dormann | 65 | Head | — | Germany |
| 2 | Joseph Dormann | 39 | Son | Steam Fitter | Pennsylvania |
| 3 | Anna Dormann | 25 | Daughter | Mender | Pennsylvania |
| 4 | James Smith | 37 | Head | Chauffeur | Pennsylvania |
| 5 | Mary Smith | 32 | Wife | — | Pennsylvania |
| 6 | James Jr. Smith | 14 | Son | — | Pennsylvania |
| 7 | Joseph Smith | 11 | Son | — | Pennsylvania |
| 8 | Margaret Brannon | 53 | Boarder | Seider | Pennsylvania |
| 9 | Harvey Miller | 48 | Head | Waiter | Pennsylvania |
| 10 | Lillian Miller | 48 | Wife | — | Pennsylvania |
| 11 | Charles Downs | 50 | Brother-in-law | Dishwasher | Pennsylvania |
| 12 | Mary Burgess | 52 | Head | — | Northern Ireland |
| 13 | James Burgess | 24 | Son | Deckhand | Pennsylvania |
| 14 | William Burgess | 21 | Son | Wrapper | Pennsylvania |
| 15 | Margaret Burgess | 24 | Daughter-in-law | Cab. Builder | Northern Ireland |
| 16 | Margaret Burgess | 15 | Daughter | — | Pennsylvania |
| 17 | Otto Zatzel | 50 | Head | Chauffeur | Pennsylvania |
| 18 | Nellie Zatzel | 36 | Wife | — | Pennsylvania |
| 19 | John Zatzel | 5 | Son | — | Pennsylvania |
| 20 | Marie Delay | 17 | Step-Daughter | Wrapper | Pennsylvania |
| 21 | George Novak | 40 | Head | Staker | Russia |
| 22 | Julia Novak | 35 | Wife | — | Hungary |
| 23 | Mary Novak | 12 | Daughter | — | Pennsylvania |
| 24 | Joseph Novak | 10 | Son | — | Pennsylvania |
| 25 | George Jr. Novak | 5 | Son | — | Pennsylvania |
| 26 | Elias Ichine | 42 | Head | Waiter | Albania |
| 27 | Elena Ichine | 24 | Wife | — | Albania |
| 28 | George Lemon | 65 | Head | Chauffeur | Pennsylvania |
| 29 | Mary Lemon | 70 | Wife | — | Northern Ireland |
| 30 | Elizabeth Lemon | 35 | Daughter | — | Pennsylvania |
| 31 | Henry Rappold | 64 | Head | Baker | Germany |
| 32 | Caroline Rappold | 66 | Wife | — | Germany |
| 33 | Adam Rappold | 29 | Son | Tinsmith | Pennsylvania |
| 34 | Mary Michler | 49 | Head | Folder | Pennsylvania |
| 35 | Helen Michler | 42 | Sister | Folder | Pennsylvania |
| 36 | Joseph Michler | 45 | Brother | Janitor | Pennsylvania |
| 37 | John Olden | 63 | Head | Cook | New Jersey |
| 38 | Elizabeth Olden | 62 | Wife | — | Pennsylvania |
| 39 | Carl Mishler | 33 | Head | Butcher | Pennsylvania |
| 40 | John Mcmullen | 39 | Head | Laborer | Northern Ireland |
| 41 | Nellie Mcmullen | 37 | Wife | — | Northern Ireland |
| 42 | Mary Mcmullen | 13 | Daughter | — | Pennsylvania |
| 43 | James Mcmullen | 12 | Son | — | Pennsylvania |
| 44 | Agnes Mcmullen | 11 | Daughter | — | Pennsylvania |
| 45 | John Jr. Mcmullen THIS PERSON | 9 | Son | — | Pennsylvania |
| 46 | Joseph Mcmullen | 8 | Son | — | Pennsylvania |
| 47 | Francis Mcmullen | 7 | Son | — | Pennsylvania |
| 48 | Hugh Mcmullen | 5 | Son | — | Pennsylvania |
| 49 | George Rostron | 41 | Boarder | Stationary Engineer | England |
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)