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Mary Mulligan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Montgomery-County, Pennsylvania
Our Model Tree links this Mary Mulligan across the 1930 and 1940 US Censuses in Montgomery-County, Pennsylvania (XGBoost, ~Confirmed) — first a spouse (b.~1905), then head of a 8-person household.
Age 35
b. ~1905
Female
Spouse
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Montgomery-County, Pennsylvania |
| Surname | Mulligan |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Norristown borough |
| 1935 Residence (County) | Montgomery |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | G 8 |
| 1935 Residence | Same house |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Norristown Borough |
| Est. Birth Year | ~1905 |
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 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Patrick Mulligan | Other | — | 79 | ~1861 |
| Leo Mulligan | Son | — | 10 | ~1930 |
| Gerald Mulligan | Son | — | 3 | ~1937 |
| Leo Mulligan | Head | — | 43 | ~1897 |
| Mary Mulligan | Spouse | — | 35 | ~1905 |
| Claire Mulligan | Daughter | — | 7 | ~1933 |
| Lawrence Mulligan | Son | — | 5 | ~1935 |
| William Mulligan | Son | — | 1 | ~1939 |
Census Appearances
1930
Montgomery, Pennsylvania
Spouse, age 25
Montgomery, Pennsylvania · implied b. ~1905 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mulligan |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 23 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Montgomery-County, Pennsylvania
Spouse, age 35
Montgomery-County, Pennsylvania · implied b. ~1905 — 8 household members
| Surname | Mulligan |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Norristown borough |
| 1935 Residence (County) | Montgomery |
| Income (1939) | 0 |
| Highest Grade | G 8 |
| 1935 Residence | Same house |
| 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 Mary Mulligan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mulligan
Spouse · 1940 · age 35 · b. ~1905 · Pennsylvania
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Montgomery-County, Pennsylvania
Open full size
1940 US Federal Census — Montgomery-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03581-00558)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Albert Gennell | 40 | Head | Clerk | Pennsylvania |
| 2 | Anna S. Gennell | 38 | Wife | — | Pennsylvania |
| 3 | John Jr. Gennell | 12 | Son | — | Pennsylvania |
| 4 | Michael Gennell | 8 | Son | — | Pennsylvania |
| 5 | Margaret Gennell | 6 | Daughter | — | Pennsylvania |
| 6 | Hilary Gennell | 4 | Son | — | Pennsylvania |
| 7 | Teresa Gennell | 1 | Daughter | — | Pennsylvania |
| 8 | Melvin V. Crumps | 42 | Head | Minister | Tennessee |
| 9 | Blanche H. Crumps | 40 | Wife | — | Pennsylvania |
| 10 | Melvin O. Crumps | 17 | Son | — | Tennessee |
| 11 | John W. Crumps | 15 | Son | — | Pennsylvania |
| 12 | Ben Hess Crumps | 11 | Son | — | New Jersey |
| 13 | Edwin Jr. Gayer | 41 | Head | Minister | Pennsylvania |
| 14 | Laura S. Gayer | 39 | Wife | — | Pennsylvania |
| 15 | Edwin 3Rd Gayer | 11 | Son | — | Pennsylvania |
| 16 | Marilyn Gayer | 10 | Daughter | — | Pennsylvania |
| 17 | Frank A. Yaeger | 67 | Father-in-law | — | Pennsylvania |
| 18 | Emma Yaeger | 63 | Mother-in-law | — | Pennsylvania |
| 19 | Leo Mulligan | 43 | Head | Machinist | Pennsylvania |
| 20 | Mary Mulligan THIS PERSON | 35 | Wife | — | Pennsylvania |
| 21 | Leo Jr. Mulligan | 10 | Son | — | Pennsylvania |
| 22 | Claire Mulligan | 7 | Daughter | — | Pennsylvania |
| 23 | Lawrence Mulligan | 5 | Son | — | Pennsylvania |
| 24 | Gerald Mulligan | 3 | Son | — | Pennsylvania |
| 25 | William Mulligan | 1 | Son | — | Pennsylvania |
| 26 | Patrick Mulligan | 79 | Father | — | Irish Free State |
| 27 | Frank S. Huston | 72 | Head | — | Pennsylvania |
| 28 | Franklin Jr. Huston | 34 | Son | Chauffeur | Pennsylvania |
| 29 | Elizabeth Taggert | 77 | Head | — | Pennsylvania |
| 30 | Mabel T. P. Weaver | 40 | Daughter | — | Pennsylvania |
| 31 | Cornelius J. Scott | 63 | Head | Hydraulic Engineer | Pennsylvania |
| 32 | Alice J. Scott | 52 | Wife | — | Pennsylvania |
| 33 | C. Robert Scott | 24 | Son | Foreman | Pennsylvania |
| 34 | Mary A. Mccaffery | 69 | Sister-in-law | — | Pennsylvania |
| 35 | Hezekiah Harrison | 32 | Head | Foreman | Pennsylvania |
| 36 | Adelaide Harrison | 31 | Wife | — | New Jersey |
| 37 | Mary Lee M. Harrison | 9 | Daughter | — | Pennsylvania |
| 38 | William A. Harrison | 5 | Son | — | Pennsylvania |
| 39 | Jessie Gaynor Harrison | 1 | Daughter | — | Pennsylvania |
| 40 | Francis J. Furey | 31 | Head | Wool Washer | Pennsylvania |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)