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Mary Muller — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Philadelphia-County, Pennsylvania
Our Model Tree links this Mary Muller across the 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed) — first a spouse (b.~1881), then head of a 8-person household.
Age 59
b. ~1881
Female
Spouse
Born: Ireland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Philadelphia-County, Pennsylvania |
| Surname | Muller |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 59 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Phila |
| 1935 Residence (County) | Phila |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | No 7 |
| 1935 Residence | Same house |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | Phila |
| Est. Birth Year | ~1881 |
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 |
|---|---|---|---|---|
| Mary Muller | Spouse | — | 59 | ~1881 |
| Daniel Muller | Son | — | 28 | ~1912 |
| Mary Sweeney | Other | — | 1 | ~1939 |
| Mary Sweeney | Daughter | — | 22 | ~1918 |
| John Muller | Son | — | 26 | ~1914 |
| Francis Sweeney | Other | — | 24 | ~1916 |
| Daniel Muller | Head | — | 61 | ~1879 |
| James Muller | Son | — | 20 | ~1920 |
Census Appearances
1930
Philadelphia, Pennsylvania
Spouse, age 50
Philadelphia, Pennsylvania · implied b. ~1880 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Miller |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1904 |
| Age at First Marriage | 45 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Veteran | No |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Philadelphia-County, Pennsylvania
Spouse, age 59
Philadelphia-County, Pennsylvania · implied b. ~1881 — 8 household members
| Surname | Muller |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 59 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Phila |
| 1935 Residence (County) | Phila |
| Naturalization Status | Naturalized |
| Highest Grade | No 7 |
| 1935 Residence | Same house |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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 Muller across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Muller
Spouse · 1940 · age 59 · b. ~1881 · 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 — Philadelphia-County, Pennsylvania
Open full size
1940 US Federal Census — Philadelphia-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03756-00855)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Theodore Wiedemann | 40 | Head | Fitter | Penna |
| 42 | Margaret Wiedemann | 35 | Wife | — | Penna |
| 43 | Martin Ford | 23 | Nephew | Truck Driver | Penna |
| 44 | Helen Ford | 22 | Niece | Production Worker | Penna |
| 45 | Ella Spering | 58 | Mother in law | — | Penna |
| 46 | John Potts | 27 | Head | Packer | Penna |
| 47 | Vera Potts | 25 | Wife | — | Penna |
| 48 | John Jr. Potts | 2 | Son | — | Penna |
| 49 | Francis Potts | 0 | Son | — | Penna |
| 50 | Sarah Potts | 50 | Mother | Laundress | Penna |
| 51 | Mary Potts | 21 | Sister | Presser | Penna |
| 52 | Leroy B. Mcbride | 15 | Cousin | Laborer | Virginia |
| 53 | Annie Macallister | 65 | Head | — | Penna |
| 54 | James Macallister | 36 | Son | Clerk | Penna |
| 55 | Edward Macallister | 25 | Son | Clerk | Penna |
| 56 | Geo. K. Jr. Smith | 69 | Head | Health Inspector | Penna |
| 57 | Rose Bertha Smith | 55 | Cousin | — | Virginia |
| 58 | Ernest Harris | 43 | Head | Sexton | Penna |
| 59 | Anna Harris | 37 | Wife | Printer | Penna |
| 60 | Muriel Harris | 11 | Daughter | — | Penna |
| 61 | Evelyn Harris | 9 | Daughter | — | Penna |
| 62 | Gertie Harris | 68 | Mother | — | Penna |
| 63 | Wesley Stevenson | 78 | Head | — | Delaware |
| 64 | Bettie Stevenson | 69 | Wife | — | Delaware |
| 65 | William Mcgonigle | 54 | Head | Housekeeper & Nurse | Penna |
| 66 | Laurel Mcgonigle | 51 | Wife | Wpa - Migrator Of Portraits | Penna |
| 67 | Elizabeth Kelly | 5 | Niece | — | Penna |
| 68 | William Jr. King | 50 | Lodger | Laborer | Penna |
| 69 | Mary Mcgee | 78 | Lodger | — | Penna |
| 70 | Daniel Muller | 61 | Head | Foreman | Ireland |
| 71 | Mary Muller THIS PERSON | 59 | Wife | — | Ireland |
| 72 | Daniel Jr. Muller | 28 | Son | Checker | Penna |
| 73 | John Muller | 26 | Son | Stenographer | Penna |
| 74 | James Muller | 20 | Son | Clerk | Penna |
| 75 | Francis Sweeney | 24 | Son in law | Welder | Penna |
| 76 | Mary Sweeney | 22 | Daughter | — | Penna |
| 77 | Mary Sweeney | 1 | Grand daughter | — | Penna |
| 78 | William Sellers | 50 | Head | Conductor | Penna |
| 79 | Elizabeth Sellers | 43 | Wife | — | Penna |
| 80 | Florence Sellers | 21 | Daughter | Typist | Penna |
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)