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Margaret Mahoney — 1930 US Census Record
Model Tree available1930 United States Federal Census · Norfolk, Massachusetts
Our Model Tree links this Margaret Mahoney across the 1910, 1920 and 1930 US Censuses in Norfolk, Massachusetts (XGBoost, ~Confirmed), with identified parents Joseph & Joseph — first a daughter (b.~1904), then head of a 8-person household.
Age 26
b. ~1904
Female
Daughter
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Norfolk, Massachusetts |
| Surname | Mahoney |
| Given Name | Margaret M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Occupation | Co-helper |
| Industry | Diamond |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Co-Helper |
| Township / Ward | Milton Town |
| Est. Birth Year | ~1904 |
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 1930 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Mahoney | Head | — | 52 | ~1878 |
| Mary Mahoney | Daughter | — | 15 | ~1915 |
| Ruth Mahoney | Daughter | — | 23 | ~1907 |
| Ethel Mahoney | Daughter | — | 31 | ~1899 |
| Ambrose Mahoney | Son | — | 34 | ~1896 |
| Alice Mahoney | Daughter | — | 24 | ~1906 |
| Margaret Mahoney | Daughter | — | 26 | ~1904 |
| Leo Mahoney | Son | — | 18 | ~1912 |
Census Appearances
1910
Norfolk, Massachusetts
Daughter, age 5
Norfolk, Massachusetts · implied b. ~1905 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mahoney |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Norfolk, Massachusetts
Daughter, age 15
Norfolk, Massachusetts · implied b. ~1905 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mahoney |
| Given Name | Margaret H |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Norfolk, Massachusetts
Daughter, age 26
Norfolk, Massachusetts · implied b. ~1904 — 8 household members
| Surname | Mahoney |
| Given Name | Margaret M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Co-helper |
| Industry | Diamond |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 Margaret Mahoney across 3 US Census years (1910, 1920 and 1930) in Norfolk, Massachusetts, using XGBoost record linkage. Identified parents: father Joseph Mahoney (~0.92 confidence) and father Joseph Mahoney (~0.92 confidence) and mother Ella Mahoney (~0.92 confidence) and mother Ella Mahoney (~0.92 confidence) and mother Margaret Mahoney (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Joseph Mahoney
b. ~1873
Source father
● Household
· direct · ~0.92
Father
Joseph Mahoney
b. ~1871
Source father
● Household
· direct · ~0.92
Mother
Ella Mahoney
b. ~1873
Source mother
● Household
· direct · ~0.92
Mother
Ella Mahoney
b. ~1872
Source mother
● Household
· direct · ~0.92
Mother
Margaret Mahoney
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Mahoney
Daughter · 1930 · age 26 · b. ~1904 · Massachusetts
★ You are viewing this record
Sibling
Ruth Mahoney
Sibling · 1930 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ethel Mahoney
Sibling · 1930 · age 31
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leo Mahoney
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Mahoney
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Mahoney
Sibling · 1930 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ambrose Mahoney
Sibling · 1930 · age 34
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
1930 US Federal Census — Norfolk, Massachusetts
Open full size
1930 US Federal Census — Norfolk, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel935:0030)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Alice G. Rappe | 30 | Wife-H | — | Massachusetts |
| 52 | Donald J. Rappe | 4 | Son | — | Massachusetts |
| 53 | Frank Jordan | 41 | Head | Plumber | Maine |
| 54 | Catherine Jordan | 40 | Wife-H | — | Massachusetts |
| 55 | Lillian Jordan | 16 | Daughter | — | Massachusetts |
| 56 | Melbry Jordan | 15 | Son | — | Massachusetts |
| 57 | Frank Jr. Jordan | 13 | Son | — | Massachusetts |
| 58 | Robert M. Thomson | 42 | Head | Instructor | Scotland |
| 59 | Annie S. Thomson | 43 | Wife-H | — | Scotland |
| 60 | Ann L. Thomson | 21 | Daughter | Nurse | Scotland |
| 61 | Ina Thomson | 19 | Daughter | — | Scotland |
| 62 | Robert S. Thomson | 17 | Son | — | Scotland |
| 63 | Diane Thomson | 7 | Son | — | Massachusetts |
| 64 | William Smart | 47 | Head | Foundryman | Pennsylvania |
| 65 | Catherine Smart | 44 | Wife-H | — | New York |
| 66 | William J. Smart | 22 | Son | Ticket Taker | Massachusetts |
| 67 | Catherine M. Smart | 20 | Daughter | — | Massachusetts |
| 68 | Robert Smart | 27 | Son-in-law | Musician | Canada-English |
| 69 | Richard J. Smart | 16 | Son | Fitting | Massachusetts |
| 70 | Frances E. Smart | 13 | Daughter | — | Massachusetts |
| 71 | Margaret Mahoney | 52 | Head | — | Massachusetts |
| 72 | Ambrose J. Mahoney | 34 | Son | Fireman | Massachusetts |
| 73 | Ethel M. Mahoney | 31 | Daughter | Bookkeeper | Massachusetts |
| 74 | Margaret M. Mahoney THIS PERSON | 26 | Daughter | Co-Helper | Massachusetts |
| 75 | Alice G. Mahoney | 24 | Daughter | Clerk | Massachusetts |
| 76 | Ruth E. Mahoney | 23 | Daughter | Counter Manager | Massachusetts |
| 77 | Leo Wm. Mahoney | 18 | Son | Manager | Massachusetts |
| 78 | Mary G. Mahoney | 15 | Daughter | — | Massachusetts |
| 79 | Magnus Emanelson | 45 | Head | Sea Captain | Norway |
| 80 | Helena Emanelson | 45 | Wife-H | — | Sweden |
| 81 | Edith M. Emanelson | 17 | Daughter | — | Massachusetts |
| 82 | Ruth E. Emanelson | 15 | Daughter | — | Massachusetts |
| 83 | Alice O'Mealey | 42 | Head | Stenographer | Massachusetts |
| 84 | Catherine F. O'Mealey | 39 | Sister | Bookkeeper | Massachusetts |
| 85 | Margaret E. O'Mealey | 32 | Sister | Stenographer | Massachusetts |
| 86 | George Robbins | 69 | Housekeeper | Housekeeper | Massachusetts |
| 87 | Herbert F. Tracey | 44 | Head | Superintendent | Canada-English |
| 88 | Attie G. Tracey | 34 | Wife-H | — | Maine |
| 89 | Ernest W. Chase | 30 | Head | Mailman | Massachusetts |
| 90 | Edith Chase | 26 | Wife-H | — | Canada-English |
| 91 | Archibald Ross | 32 | Head | Assistant | Massachusetts |
| 92 | Eleanor Ross | 24 | Wife-H | — | Massachusetts |
| 93 | Edith R. Faulhaber | 54 | Head | — | Massachusetts |
| 94 | Edith L. Faulhaber | 33 | Daughter | Social Worker | Massachusetts |
| 95 | Arthur E. Quarm | 32 | Head | Lineman | Massachusetts |
| 96 | Ruth E. Quarm | 31 | Wife-H | — | Massachusetts |
| 97 | Virginia Quarm | 1 | Daughter | — | Massachusetts |
| 98 | Walter F. Clarke | 55 | Head | Chemist | Massachusetts |
| 99 | Mary E. Clarke | 53 | Wife-H | — | Massachusetts |
| 100 | Frederick Dales | 55 | Servant | Cook | Canada-English |
Pedigree Summary
Margaret + 6 siblings
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
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)