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Margaret Brennan — 1930 US Census Record
Model Tree available1930 United States Federal Census · Essex, Massachusetts
Our Model Tree links this Margaret Brennan across the 1910, 1920 and 1930 US Censuses in Essex, Massachusetts (XGBoost, ~Confirmed), with identified parents William & Annie — first a daughter (b.~1906), then head of a 4-person household.
Age 24
b. ~1906
Female
Daughter
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Essex, Massachusetts |
| Surname | Brennan |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Canada English |
| Additional Details | |
| Occupation | Stenographer |
| Industry | Coal Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Stenographer |
| Township / Ward | Salem City |
| Est. Birth Year | ~1906 |
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.
4 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Annie Brennan | Other | — | 53 | ~1877 |
| Margaret Brennan | Daughter | — | 24 | ~1906 |
| William Brennan | Head | — | 54 | ~1876 |
| William Brennan | Other | — | 21 | ~1909 |
Census Appearances
1910
Essex, Massachusetts
Daughter, age 4
Essex, Massachusetts · implied b. ~1906 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brennan |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Canada (Eng) |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Essex, Massachusetts
Daughter, age 13
Essex, Massachusetts · implied b. ~1907 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brennan |
| Given Name | Margaret V |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Essex, Massachusetts
Daughter, age 24
Essex, Massachusetts · implied b. ~1906 — 4 household members
| Surname | Brennan |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Canada English |
| Occupation | Stenographer |
| Industry | Coal Co. |
| 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 Brennan across 3 US Census years (1910, 1920 and 1930) in Essex, Massachusetts, using XGBoost record linkage. Identified parents: father William Brennan (~0.92 confidence) and mother Annie Brennan (~0.92 confidence) and father William Brennan (~0.92 confidence) and mother Annie Brennan (~0.92 confidence) and father William Brennan (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Brennan
b. ~1865
Source father
● Household
· direct · ~0.92
Mother
Annie Brennan
b. ~1870
Source mother
● Household
· direct · ~0.92
Father
William Brennan
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Annie Brennan
b. ~1875
Source mother
● Household
· direct · ~0.92
Father
William Brennan
b. ~1876
Source father
● Household
· direct · ~0.92
This person
Anchor record
Margaret Brennan
Daughter · 1930 · age 24 · b. ~1906 · Massachusetts
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Essex, Massachusetts
Open full size
1930 US Federal Census — Essex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel902:1154)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Irene Bello | 22 | Wife-H | — | Italy |
| 52 | Helen Bello | 5 | Daughter | — | Massachusetts |
| 53 | Alice Bello | 3 | Daughter | — | Massachusetts |
| 54 | Charles Bello | 1 | Son | — | Massachusetts |
| 55 | David Leon | 64 | Head | Seaman | Spain |
| 56 | Mary Leon | 64 | Mother-H | — | Spain |
| 57 | George Bokeris | 48 | Head | Stainer | Greece |
| 58 | Gretta Bokeris | 41 | Wife-H | — | Massachusetts |
| 59 | John Bokeris | 19 | Son | Laborer | Massachusetts |
| 60 | George Bokeris | 17 | Son | — | Massachusetts |
| 61 | Grace Bokeris | 12 | Daughter | — | Massachusetts |
| 62 | Andrew Bokeris | 8 | Son | — | Massachusetts |
| 63 | Paul Ogasian | 40 | Head | Barber | Armenia |
| 64 | William J Hogan | 54 | Head | Janitor | Canada English |
| 65 | Margaret M Hogan | 51 | Wife-H | — | Canada English |
| 66 | Clementine Hogan | 23 | Daughter | Stitcher | Massachusetts |
| 67 | Alice Hogan | 19 | Daughter | Folder | Massachusetts |
| 68 | Henry T Hogan | 35 | Head | — | Massachusetts |
| 69 | Catherine Hogan | 33 | Wife-H | — | Massachusetts |
| 70 | Henry T Hogan | 10 | Son | — | Massachusetts |
| 71 | Joseph Hogan | 8 | Son | — | Massachusetts |
| 72 | William J Hogan | 6 | Son | — | Massachusetts |
| 73 | George W Hogan | 36 | Head | Tacker | Massachusetts |
| 74 | Elizabeth Hogan | 36 | Wife-H | — | Pennsylvania |
| 75 | Margaret Hogan | 3 | Daughter | — | Massachusetts |
| 76 | Gregory Hubisz | 54 | Head | Moulder | Poland |
| 77 | Mary Hubisz | 39 | Wife-H | — | Czecho-Slovakia |
| 78 | Annie Hubisz | 18 | Daughter | — | Massachusetts |
| 79 | Rose Hubisz | 10 | Daughter | — | Massachusetts |
| 80 | Agnes Boyajian | 35 | Head-H | Proprietor | Armenia |
| 81 | Arthur Boyajian | 16 | Son | — | Armenia |
| 82 | Peter Horgasian | 46 | Cousin | Salesman | Armenia |
| 83 | Joseph Hubisz | 12 | Son | — | Massachusetts |
| 84 | John Slezak | 57 | Head | Shaver | Czecho-Slovakia |
| 85 | Mary Slezak | 63 | Wife-H | — | Czecho-Slovakia |
| 86 | Mary Slezak | 18 | Daughter | — | Massachusetts |
| 87 | Mary Smith | 60 | Head-H | Inspector | Massachusetts |
| 88 | William Day | 59 | Brother | Shaver | Massachusetts |
| 89 | Jennie Mcechern | 58 | Head-H | — | Canada English |
| 90 | William Brennan | 54 | Head | Owner | Massachusetts |
| 91 | Annie Brennan | 53 | Wife-H | — | Canada English |
| 92 | Margaret Brennan THIS PERSON | 24 | Daughter | Stenographer | Massachusetts |
| 93 | William Brennan | 21 | Private | Ice Man | Massachusetts |
| 94 | Martin Pangonis | 60 | Head | Shaver | Lithuania |
| 95 | Mary Pangonis | 49 | Wife-H | — | Lithuania |
| 96 | Joseph Pangonis | 20 | Son | Barber | Lithuania |
| 97 | Annie Pangonis | 22 | Daughter | Stitcher | Lithuania |
| 98 | Denis Leblanc | 55 | Head-H | — | Canada French |
| 99 | Mildred Leblanc | 25 | Son | Sorter | Massachusetts |
| 100 | Harold Leblanc | 22 | Son | Tacker | Massachusetts |
Pedigree Summary
Margaret
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)