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Mary Mahoney — 1940 US Census Record
Model Tree available1940 United States Federal Census · Lycoming-County, Pennsylvania
Our Model Tree links this Mary Mahoney across the 1920, 1930 and 1940 US Censuses in Lycoming-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Charles & Elizabeth — first a daughter (b.~1918), then head of a 5-person household.
Age 22
b. ~1918
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lycoming-County, Pennsylvania |
| Surname | Mahoney |
| Given Name | Mary Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Williamsport City |
| 1935 Residence (County) | Lycoming |
| Additional Details | |
| Class of Worker | 1240 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Williamsport City |
| Est. Birth Year | ~1918 |
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 |
|---|---|---|---|---|
| Mary Mahoney | Daughter | — | 22 | ~1918 |
| Ethelreda Mahoney | Daughter | — | 19 | ~1921 |
| Elizabeth Mahoney | Head | — | 53 | ~1887 |
| James Mahoney | Son | — | 14 | ~1926 |
| Robert Mahoney | Son | — | 16 | ~1924 |
Census Appearances
1920
Lycoming, Pennsylvania
Daughter, age 2
Lycoming, Pennsylvania · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mahoney |
| Given Name | Mary Margaret |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Lycoming, Pennsylvania
Daughter, age 12
Lycoming, Pennsylvania · implied b. ~1918 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mahoney |
| Given Name | Mary M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Lycoming-County, Pennsylvania
Daughter, age 22
Lycoming-County, Pennsylvania · implied b. ~1918 — 5 household members
| Surname | Mahoney |
| Given Name | Mary Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Williamsport City |
| 1935 Residence (County) | Lycoming |
| Class of Worker | 1240 |
| Highest Grade | H 4 |
| 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 Mahoney across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Mahoney (~0.92 confidence) and mother Elizabeth Mahoney (~0.92 confidence) and mother Elizabeth Mahoney (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Mahoney
b. ~1881
Source father
● Household
· direct · ~0.92
Mother
Elizabeth Mahoney
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Elizabeth Mahoney
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Mahoney
Daughter · 1940 · age 22 · b. ~1918 · Pennsylvania
★ You are viewing this record
Sibling
James Mahoney
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Mahoney
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ethelreda Mahoney
Sibling · 1940 · age 19
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
1940 US Federal Census — Lycoming-County, Pennsylvania
Open full size
1940 US Federal Census — Lycoming-County, Pennsylvania
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-03566-00771)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Frank K Wool | 36 | Head | Proprietor | Pennsylvania |
| 42 | Pauline Wool | 29 | Wife | — | Pennsylvania |
| 43 | Frank Jr Wool | 5 | Son | — | Pennsylvania |
| 44 | Jack Leroy Wool | 2 | Son | — | Pennsylvania |
| 46 | Kathryn Steward | 31 | Head | Proprietor | Pennsylvania |
| 47 | Merrill Edwards | 43 | Head | Wire Winder | Pennsylvania |
| 48 | Gussie Edwards | 41 | Wife | — | Pennsylvania |
| 49 | Elwood Edwards | 22 | Son | Salesman | Pennsylvania |
| 50 | Anna Edwards | 20 | Daughter | Secretary | Pennsylvania |
| 51 | Peter H Godfrey | 45 | Head | Machine Operator | Pennsylvania |
| 52 | Gertrude Godfrey | 45 | Wife | Presser | Pennsylvania |
| 53 | Henry Godfrey | 21 | Son | Slat Hanger | Pennsylvania |
| 54 | La Rue Godfrey | 15 | Son | Salesboy | Pennsylvania |
| 55 | Louise Godfrey | 12 | Daughter | — | Pennsylvania |
| 56 | Elizabeth Mahoney | 53 | Head | — | Pennsylvania |
| 57 | Mary Margaret Mahoney THIS PERSON | 22 | Daughter | — | Pennsylvania |
| 58 | Ethelreda Mahoney | 19 | Daughter | — | Pennsylvania |
| 59 | Robert Mahoney | 16 | Son | New Worker | Pennsylvania |
| 60 | James Mahoney | 14 | Son | — | Pennsylvania |
| 61 | Kate Hurwitz | 25 | Head | — | Russia |
| 62 | Pearl Hurwitz | 44 | Daughter | Proprietor | Hungary |
| 63 | Vivian Hurwitz | 16 | Grand-daughter | — | Pennsylvania |
| 64 | Harold Hurwitz | 11 | Grand-son | — | Pennsylvania |
| 66 | John J Straub | 68 | Head | — | Pennsylvania |
| 67 | Annie E Straub | 63 | Wife | — | Pennsylvania |
| 68 | Margaret Klusure | 64 | Head | — | Austria |
| 69 | William Boatman | 55 | Head | Laborer | Pennsylvania |
| 70 | Sarah Boatman | 55 | Wife | — | Pennsylvania |
| 71 | Ruth Boatman | 16 | Daughter | — | Pennsylvania |
| 72 | Richard Boatman | 13 | Son | — | Pennsylvania |
| 73 | Lewis W Esenwine | 46 | Head | Laborer | Pennsylvania |
| 74 | Alice Esenwine | 36 | Wife | — | Pennsylvania |
| 75 | Benjamin Searfoss | 51 | Head | Machine Operator | Pennsylvania |
| 76 | Edith Searfoss | 47 | Wife | — | Missouri |
| 77 | Charles Searfoss | 21 | Son | Wire Winder | Pennsylvania |
| 78 | John Wade | 68 | Head | Laborer | Pennsylvania |
| 79 | Ella Wade | 65 | Wife | — | Pennsylvania |
| 80 | Florence Wade | 38 | Daughter | Quiller | Pennsylvania |
Pedigree Summary
Mary + 3 siblings
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)