JM
John Mulligan — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this John Mulligan across the 1910, 1920 and 1930 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1868), then head of a 5-person household.
Age 62
b. ~1868
Male
Head
Born: Maryland
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Allegheny, Pennsylvania |
| Surname | Mulligan |
| Given Name | John F. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 26 |
| Father's Birthplace | Ireland Free State |
| Mother's Birthplace | Unknown US |
| Additional Details | |
| Occupation | Machinist |
| Industry | Rail Road |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 7000 |
| Radio Set | R |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Machinist |
| Township / Ward | Pittsburgh City |
| Est. Birth Year | ~1868 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Marie Mulligan | Daughter | — | 24 | ~1906 |
| Ursula Mulligan | Spouse | — | 58 | ~1872 |
| Nellie Mulligan | Daughter | — | 19 | ~1911 |
| John Mulligan | Head | — | 62 | ~1868 |
| Celia Mulligan | Daughter | — | 23 | ~1907 |
Census Appearances
1910
Allegheny, Pennsylvania
Head, age 41
Allegheny, Pennsylvania · implied b. ~1869 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mulligan |
| Given Name | John P |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Maryland |
| Years Married | 17 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1920
Allegheny, Pennsylvania
Head, age 51
Allegheny, Pennsylvania · implied b. ~1869 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mulligan |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Machinist |
| Industry | Steel mill |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Year of Naturalization | R |
| Birthplace (normalized) | maryland |
1930
Allegheny, Pennsylvania
Head, age 62
Allegheny, Pennsylvania · implied b. ~1868 — 5 household members
| Surname | Mulligan |
| Given Name | John F. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 26 |
| Father's Birthplace | Ireland Free State |
| Mother's Birthplace | Unknown US |
| Occupation | Machinist |
| Industry | Rail Road |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 7000 |
| Radio Set | R |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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 3 US Census years (1910, 1920 and 1930) in Allegheny, Pennsylvania, using XGBoost record linkage.
Show:
This person
Anchor record
John Mulligan
Head · 1930 · age 62 · b. ~1868 · Pennsylvania
★ You are viewing this record
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:fifteenthcensus00reel1967:0459)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles S. Horn | 54 | Head | Foreman | Pennsylvania |
| 2 | S. Anna Horn | 50 | Wife | Teacher | Pennsylvania |
| 3 | Rose Cohn | 24 | Lodger | Manager | New York |
| 4 | Herbert G. Flanigan | 22 | Son-in-law | Chauffeur | Pennsylvania |
| 5 | Annabelle Flanigan | 19 | Daughter | — | Pennsylvania |
| 6 | Herbert L. Flanigan | 1 | Grandson | — | Pennsylvania |
| 7 | Alfred C. Geitz | 39 | Head | Office Manager | Ohio |
| 8 | Mamie L. Geitz | 35 | Wife | — | Pennsylvania |
| 9 | Robert C. Geitz | 10 | Son | — | Pennsylvania |
| 10 | Ruth A. Geitz | 4 | Daughter | — | Pennsylvania |
| 11 | Christina Kiedauer | 75 | Mother-in-law | — | Germany |
| 12 | John F. Mulligan THIS PERSON | 62 | Head | Machinist | Maryland |
| 13 | Ursula C. Mulligan | 58 | Wife | — | Maryland |
| 14 | Marie A. Mulligan | 24 | Daughter | Cashier | Maryland |
| 15 | Celia A. Mulligan | 23 | Daughter | — | Maryland |
| 16 | Nellie B. Mulligan | 19 | Daughter | Typist | Maryland |
| 17 | Patrick E. Sullivan | 61 | Head | Fireman | Irish Free State |
| 18 | Ella J. Sullivan | 51 | Wife | — | Irish Free State |
| 19 | Leo G. Sullivan | 21 | Son | — | Pennsylvania |
| 20 | Frank Becher | 70 | Head | — | Pennsylvania |
| 21 | Elizabeth Becher | 59 | Wife | — | Pennsylvania |
| 22 | Gust J. Vitoas | 35 | Head | Hat Cleaner | Greece |
| 23 | Catherine Vitoas | 32 | Wife | — | Greece |
| 24 | William Vitoas | 13 | Son | — | Pennsylvania |
| 25 | James Vitoas | 11 | Son | — | Pennsylvania |
| 26 | George Vitoas | 9 | Son | — | Pennsylvania |
| 27 | Anna M. Willig | 50 | Head | — | Pennsylvania |
| 28 | Ella Leech | 24 | Maid | Servant | Pennsylvania |
| 29 | James Kelley | 52 | Head | Clerk | Ohio |
| 30 | Elizabeth C. Kelley | 51 | Wife | — | Pennsylvania |
| 31 | John C. Kelley | 32 | Son | — | Pennsylvania |
| 32 | Kenneth J. Kelley | 25 | Son | Clerk | Pennsylvania |
| 33 | William Kelley | 24 | Son | Moulder | Pennsylvania |
| 34 | Jean Kelley | 18 | Daughter | — | Pennsylvania |
| 35 | Dennis J. Killyallen | 69 | Head | Machinist | England |
| 36 | Mary M. Killyallen | 69 | Wife | — | Pennsylvania |
| 37 | Lily N. Killyallen | 40 | Daughter | Stenographer | New York |
| 38 | Margaret Killyallen | 32 | Daughter | — | New York |
| 39 | Mildred Killyallen | 28 | Daughter | Stenographer | Pennsylvania |
| 40 | Marie Killyallen | 24 | Daughter | Stenographer | Pennsylvania |
| 41 | James J. Mccustie | 63 | Head | Machinist | Northern Ireland |
| 42 | Mary E. Mccustie | 55 | Wife | — | Pennsylvania |
| 43 | Edward Mccustie | 28 | Son | Stenographer | Pennsylvania |
| 44 | James C. Mccustie | 25 | Son | Inspector | Pennsylvania |
| 45 | Raymond Mccustie | 18 | Son | — | Pennsylvania |
| 46 | Vera Mccustie | 16 | Daughter | — | Pennsylvania |
| 47 | Sena M. Conover | 77 | Mother-in-law | — | Pennsylvania |
| 48 | William J. Blair | 61 | Head | Heater | Pennsylvania |
| 49 | Rachel Blair | 54 | Wife | — | Scotland |
| 50 | William J. Jr. Blair | 22 | Son | — | 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)