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John Mcmullen — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this John Mcmullen across the 1910 and 1920 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1895), then head of a 8-person household.
Age 25
b. ~1895
Male
Son
Born: Pennsylvania
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Allegheny, Pennsylvania |
| Surname | McMullen |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Clerk |
| Industry | Steel works |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Clerk |
| Township / Ward | Braddock Borough |
| Est. Birth Year | ~1895 |
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.
8 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Albert Mcmullen | Son | — | 22 | ~1898 |
| William Mcmullen | Head | — | 58 | ~1862 |
| John Mcmullen | Son | — | 25 | ~1895 |
| Margaret Mcmullen | Daughter | — | 20 | ~1900 |
| Doris Mcmullen | Daughter | — | 15 | ~1905 |
| Mary Mcmullen | Spouse | — | 50 | ~1870 |
| Alice Mcmullen | Daughter | — | 13 | ~1907 |
| Catherine Mcmullen | Daughter | — | 17 | ~1903 |
Census Appearances
1910
Allegheny, Pennsylvania
Son, age 15
Allegheny, Pennsylvania · implied b. ~1895 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McMullen |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Ireland |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Allegheny, Pennsylvania
Son, age 25
Allegheny, Pennsylvania · implied b. ~1895 — 8 household members
| Surname | McMullen |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Ireland |
| Occupation | Clerk |
| Industry | Steel works |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| 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 (1910 and 1920) in Allegheny, Pennsylvania, using XGBoost record linkage.
Show:
This person
Anchor record
John Mcmullen
Son · 1920 · age 25 · b. ~1895 · Pennsylvania
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Sibling
Doris Mcmullen
Sibling · 1920 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Mcmullen
Sibling · 1920 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Albert Mcmullen
Sibling · 1920 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Mcmullen
Sibling · 1920 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Mcmullen
Sibling · 1920 · age 13
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
1920 US Federal Census — Allegheny, Pennsylvania
Open full size
1920 US Federal Census — Allegheny, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1509unit:1185)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Anna M. Crawford | 15 | Daughter | — | Pennsylvania |
| 52 | John Crawford | 14 | Son | — | Pennsylvania |
| 53 | Catherine Crawford | 10 | Daughter | — | Pennsylvania |
| 54 | John Kaplan | 51 | Head | Storekeeper | Germany |
| 55 | Poline Kaplan | 48 | Wife | — | Poland |
| 56 | Catherine Chadwick | 49 | Head | — | Pennsylvania |
| 57 | Minnie Chadwick | 27 | Daughter | Clerk | Pennsylvania |
| 58 | Minnie Chadwick | 22 | Daughter | Clerk | Pennsylvania |
| 59 | William Chadwick | 19 | Son | Laborer | Pennsylvania |
| 60 | Margaret Chadwick | 15 | Daughter | — | Pennsylvania |
| 61 | William Henderson | 41 | Head | Laborer | Pennsylvania |
| 62 | Mary Henderson | 39 | Wife | — | Pennsylvania |
| 63 | Doris Henderson | 4 | Daughter | — | Pennsylvania |
| 64 | Matthew Starr | 30 | Head | Puddler | Pennsylvania |
| 65 | Mary Starr | 29 | Wife | — | Pennsylvania |
| 66 | Charles Starr | 9 | Son | — | Pennsylvania |
| 67 | Jacob Goldberg | 36 | Head | Storekeeper | Russia |
| 68 | Anna Goldberg | 34 | Wife | — | Russia |
| 69 | Yetta Goldberg | 10 | Daughter | — | Pennsylvania |
| 70 | Harry Carpenter | 37 | Head | Driver | Virginia |
| 71 | Catherine Carpenter | 44 | Wife | — | Pennsylvania |
| 72 | William A. Post | 35 | Head | Carpenter | Pennsylvania |
| 73 | Nellie Post | 33 | Wife | — | Pennsylvania |
| 74 | William A. Post | 5 | Son | — | Pennsylvania |
| 75 | Robert A. Post | 3 | Son | — | Pennsylvania |
| 76 | Minnie Linlocher | 47 | Head | — | Ohio |
| 77 | Raymond Linlocher | 25 | Son | Laborer | Pennsylvania |
| 78 | Charles Linlocher | 23 | Son | Helper | Pennsylvania |
| 79 | Joseph Linlocher | 16 | Son | Office Boy | Pennsylvania |
| 80 | Catherine A. Linlocher | 13 | Daughter | — | Pennsylvania |
| 81 | Marie Linlocher | 7 | Daughter | — | Pennsylvania |
| 82 | Charles Barlock | 33 | Head | Laborer | Pennsylvania |
| 83 | Ada Barlock | 32 | Wife | — | Pennsylvania |
| 84 | Edward Barlock | 6 | Son | — | Pennsylvania |
| 85 | Robert Barlock | 4 | Son | — | Pennsylvania |
| 86 | Richard Barlock | 3 | Son | — | Pennsylvania |
| 87 | William Mcmullen | 58 | Head | Manager | Pennsylvania |
| 88 | Mary Mcmullen | 50 | Wife | — | Ireland |
| 89 | John Mcmullen THIS PERSON | 25 | Son | Clerk | Pennsylvania |
| 90 | Albert Mcmullen | 22 | Son | Machinist | Pennsylvania |
| 91 | Margaret Mcmullen | 20 | Daughter | Clerk | Pennsylvania |
| 92 | Catherine Mcmullen | 17 | Daughter | — | Pennsylvania |
| 93 | Doris Mcmullen | 15 | Daughter | — | Pennsylvania |
| 94 | Alice Mcmullen | 13 | Daughter | — | Pennsylvania |
| 95 | John Griffin | 63 | Head | Laborer | Iowa |
| 96 | Mary Griffin | 62 | Wife | — | Pennsylvania |
| 97 | Mary Griffin | 30 | Daughter | Stenographer | Iowa |
| 98 | Beulah M. Griffin | 27 | Daughter | Teacher | Iowa |
| 99 | Alice Griffin | 27 | Daughter | — | Iowa |
| 100 | Constance D. Griffin | 24 | Daughter | Stenographer | Iowa |
Related Census Records
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)