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John Mulligan — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this John Mulligan across the 1920 and 1930 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1906), then head of a 15-person household.
Age 24
b. ~1906
Male
Son
Born: Pennsylvania
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Allegheny, Pennsylvania |
| Surname | Mulligan |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 23 |
| Father's Birthplace | England |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | Stationary Fireman |
| Industry | Steel Works |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Stationary Fireman |
| Township / Ward | Munhall Borough |
| Est. Birth Year | ~1906 |
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.
15 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Mulligan | Son | — | 24 | ~1906 |
| Mike Smyth | Other | — | 89 | ~1841 |
| Wayne Flanigan | Other | — | 26 | ~1904 |
| Margaret Mulligan | Daughter | — | 24 | ~1906 |
| William Mulligan | Other | — | 4 | ~1926 |
| Marie Flanigan | Spouse | — | 25 | ~1905 |
| Frances Mulligan | Daughter | — | 6 | ~1924 |
| John Duffey | Other | — | 7 | ~1923 |
| John Mulligan | Head | — | 56 | ~1874 |
| Ruth Mulligan | Daughter | — | 21 | ~1909 |
| Linford Mulligan | Son | — | 5 | ~1925 |
| Esther Mulligan | Daughter | — | 18 | ~1912 |
| Elmer Mulligan | Son | — | 8 | ~1922 |
| Charles Mulligan | Son | — | 11 | ~1919 |
| Mary Mulligan | Spouse | — | 42 | ~1888 |
Census Appearances
1920
Allegheny, Pennsylvania
Son, age 14
Allegheny, Pennsylvania · implied b. ~1906 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mulligan |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Son, age 24
Allegheny, Pennsylvania · implied b. ~1906 — 15 household members
| Surname | Mulligan |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 23 |
| Father's Birthplace | England |
| Mother's Birthplace | Pennsylvania |
| Occupation | Stationary Fireman |
| Industry | Steel Works |
| Class of Worker | W |
| Can Read/Write | Yes |
| 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 Mulligan across 2 US Census years (1920 and 1930) in Allegheny, Pennsylvania, using XGBoost record linkage.
Show:
This person
Anchor record
John Mulligan
Son · 1930 · age 24 · b. ~1906 · Pennsylvania
★ You are viewing this record
Sibling
Charles Mulligan
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frances Mulligan
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Linford Mulligan
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Esther Mulligan
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elmer Mulligan
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Mulligan
Sibling · 1930 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Mulligan
Sibling · 1930 · age 21
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 — Allegheny, Pennsylvania
Open full size
1930 US Federal Census — Allegheny, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel1968:0399)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Frederick Elliott | 7 | Son | — | Pennsylvania |
| 52 | James B Elliott | 5 | Son | — | Pennsylvania |
| 53 | Margaret R Elliott | 3 | Daughter | — | Pennsylvania |
| 54 | William B Elliott | 2 | Son | — | Pennsylvania |
| 55 | Frederick Cowdell | 30 | Head | Putman | England |
| 56 | Ethel Cowdell | 29 | Wife | — | England |
| 57 | Ethel M Cowdell | 4 | Daughter | — | Pennsylvania |
| 58 | Anthony Marsh | 59 | Head | Carpenter | Pennsylvania |
| 59 | Matilda Marsh | 45 | Wife | — | Pennsylvania |
| 60 | William L Marsh | 28 | Son | Truck Driver | Pennsylvania |
| 61 | Charles Neff | 40 | Head | Retail Merchant | Pennsylvania |
| 62 | Mardell Neff | 28 | Wife | — | Pennsylvania |
| 63 | Dorothy Neff | 7 | Daughter | — | Pennsylvania |
| 64 | Charles W Neff | 5 | Son | — | Pennsylvania |
| 65 | Geraldine Neff | 2 | Daughter | — | Pennsylvania |
| 66 | Jean Wilkenson | 25 | Servant | Servant | Pennsylvania |
| 67 | John A Mulligan | 56 | Head | Foreman | England |
| 68 | Mary Mulligan | 42 | Wife | — | Pennsylvania |
| 69 | John Mulligan THIS PERSON | 24 | Son | Stationary Fireman | Pennsylvania |
| 70 | Ruth Mulligan | 21 | Daughter | — | Pennsylvania |
| 71 | Margaret Mulligan | 24 | Daughter | — | Pennsylvania |
| 72 | Esther Mulligan | 18 | Daughter | Clerk | Pennsylvania |
| 73 | Charles Mulligan | 11 | Son | — | Pennsylvania |
| 74 | Elmer J Mulligan | 8 | Son | — | Pennsylvania |
| 75 | Frances Mulligan | 6 | Daughter | — | Pennsylvania |
| 76 | Linford Mulligan | 5 | Son | — | Pennsylvania |
| 77 | John W Duffey | 7 | Son-in-law | — | Pennsylvania |
| 78 | William Mulligan | 4 | Grandson | — | Pennsylvania |
| 79 | Mike Smyth | 89 | Father-in-law | — | North Ireland |
| 80 | Wayne S Flanigan | 26 | O | Lineman | Pennsylvania |
| 81 | Marie L Flanigan | 25 | Wife | Beauty Parlor | Pennsylvania |
| 82 | George Komlos | 37 | Head | Secretary | Pennsylvania |
| 83 | Elizabeth Komlos | 31 | Wife | — | Pennsylvania |
| 84 | George Jr Komlos | 15 | Son | — | Pennsylvania |
| 85 | Stephen Salanic | 32 | Head | Retail Merchant | Austria-Hung |
| 86 | Helen Salanic | 25 | Wife | — | Pennsylvania |
| 87 | Virginia Salanic | 5 | Daughter | — | Pennsylvania |
| 88 | Elaine Salanic | 3 | Daughter | — | Pennsylvania |
| 89 | Earl H James | 39 | Head | Clerk | Pennsylvania |
| 90 | Beulah M James | 38 | Wife | — | Pennsylvania |
| 91 | Betty J James | 12 | Daughter | — | Pennsylvania |
| 92 | William Hickey | 40 | Head | Clerk | Pennsylvania |
| 93 | Cora Hickey | 41 | Wife | — | Pennsylvania |
| 94 | Lois E Hickey | 17 | Daughter | — | Pennsylvania |
| 95 | Betty Hickey | 13 | Daughter | — | Pennsylvania |
| 96 | Margaret M Hickey | 7 | Daughter | — | Pennsylvania |
| 97 | James Boyd | 27 | Head | Clerk | Pennsylvania |
| 98 | Anna Boyd | 25 | Wife | — | Pennsylvania |
| 99 | Betty A Boyd | 2 | Daughter | — | Pennsylvania |
| 100 | Gibson B Stuart | 32 | Head | Foreman | Pennsylvania |
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)