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Mary Mullen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Montgomery-County, Pennsylvania
Our Model Tree links this Mary Mullen across the 1930 and 1940 US Censuses in Montgomery-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1880), then head of a 5-person household.
Age 60
b. ~1880
Female
Head
Born: Irish Free State
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Montgomery-County, Pennsylvania |
| Surname | Mullen |
| Given Name | Mary D. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 60 |
| Marital Status | Widowed |
| Birthplace | Irish Free State |
| 1935 Residence (City) | Ardmore |
| 1935 Residence (County) | Montgomery |
| Naturalization Status | Naturalized |
| Additional Details | |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birthplace (normalized) | irish free state |
| Township / Ward | Ardmore |
| Est. Birth Year | ~1880 |
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 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Marie Mullen | Daughter | — | 27 | ~1913 |
| Elizabeth Mullen | Daughter | — | 10 | ~1930 |
| Mary Mullen | Head | — | 60 | ~1880 |
| John Mullen | Son | — | 27 | ~1913 |
| William Mullen | Son | — | 27 | ~1913 |
Census Appearances
1930
Montgomery, Pennsylvania
Head, age 54
Montgomery, Pennsylvania · implied b. ~1876 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mullin |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Widowed |
| Birthplace | Irish Free State |
| Naturalization Status | Naturalized |
| Year of Immigration | 1884 |
| Age at First Marriage | 20 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Occupation | Housework |
| Industry | Private Family |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Value / Rent | 6500 |
| Radio Set | R |
| Veteran | No |
| Birthplace (normalized) | irish free state |
1940
Montgomery-County, Pennsylvania
Head, age 60
Montgomery-County, Pennsylvania · implied b. ~1880 — 5 household members
| Surname | Mullen |
| Given Name | Mary D. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 60 |
| Marital Status | Widowed |
| Birthplace | Irish Free State |
| 1935 Residence (City) | Ardmore |
| 1935 Residence (County) | Montgomery |
| Naturalization Status | Naturalized |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birthplace (normalized) | irish free state |
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 Mullen across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Mullen
Head · 1940 · age 60 · b. ~1880 · 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-t0627-03580-00430)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary Colucci | 17 | Daughter | Laundress | Pennsylvania |
| 2 | Yolanda Colucci | 15 | Daughter | — | Pennsylvania |
| 3 | Betty Colucci | 10 | Daughter | — | Pennsylvania |
| 4 | Frank Colucci | 9 | Son | — | Pennsylvania |
| 5 | Frank Basallo | 24 | Head | Factory Machinist | Pennsylvania |
| 6 | Carmella Basallo | 69 | Mother | — | Italy |
| 7 | John Basallo | 20 | Brother | Sailor | Pennsylvania |
| 8 | Martin Basallo | 27 | Brother | Doctor | Pennsylvania |
| 9 | Anthony Basallo | 43 | Brother | Decorator | Pennsylvania |
| 10 | Catherine Basallo | 33 | Sister | Clerical | Pennsylvania |
| 11 | Andrew B. Randolph | 41 | Head | Machinist | Pennsylvania |
| 12 | Mary Randolph | 43 | Wife | — | Ireland |
| 13 | Andrew Jr. Randolph | 11 | Son | — | Pennsylvania |
| 14 | Mary D. Mullen THIS PERSON | 60 | Head | — | Irish Free State |
| 15 | John Mullen | 27 | Son | Brakeman | Pennsylvania |
| 16 | William Mullen | 27 | Son | Clerk | Pennsylvania |
| 17 | Marie Mullen | 27 | Daughter | Telephone Operator | Pennsylvania |
| 18 | Elizabeth Mullen | 10 | Daughter | — | Pennsylvania |
| 19 | Blanche B. Woodruff | 57 | Head | — | Pennsylvania |
| 20 | Jenny Sheeler | 43 | Sister | Waitress | Pennsylvania |
| 21 | Edmond A. Owens | 46 | Lodger | Tree Surgery | Pennsylvania |
| 22 | William H. Faulkner | 55 | Lodger | Laborer | Pennsylvania |
| 23 | George W. Macgregor | 52 | Lodger | Chauffeur | Pennsylvania |
| 24 | Arthur H. Cronke | 57 | Lodger | Machinist | Pennsylvania |
| 25 | Edward J. Heisler | 41 | Lodger | Roofer | Pennsylvania |
| 26 | Albert Evans | 34 | Head | Machinist | South Carolina |
| 27 | Anna Mae Evans | 22 | Wife | — | Pennsylvania |
| 28 | Marguerite Owen | 51 | Mother-in-law | Maid | South Carolina |
| 29 | Powell Craig | 72 | Lodger | Night Watchman | Delaware |
| 30 | George Doran | 41 | Lodger | Stock Clerk | Rhode Island |
| 31 | Charles Bailey | 39 | Lodger | — | Missouri |
| 32 | William Harshaw | 38 | Head | Laborer | Maryland |
| 33 | Ennis Harshaw | 22 | Wife | — | Virginia |
| 34 | Maybelle Harshaw | 9 | Daughter | — | Pennsylvania |
| 35 | Helena Harshaw | 7 | Daughter | — | Pennsylvania |
| 36 | James Harshaw | 6 | Son | — | Pennsylvania |
| 37 | Dolores Harshaw | 2 | Daughter | — | Pennsylvania |
| 38 | Webster Childs | 24 | Lodger | Porter | Virginia |
| 39 | Thelma Childs | 20 | Lodger | — | Virginia |
| 40 | Joan Childs | 1 | Lodger | — | 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)