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William Brennan — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Essex, Massachusetts
Our Model Tree links this William Brennan across the 1920 and 1930 US Censuses in Essex, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1918), then head of a 10-person household.
Age 12
b. ~1918
Male
Son
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Essex, Massachusetts |
| Surname | Brennan |
| Given Name | William J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Lynn 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.
10 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Catherine Brennan | Other | — | 78 | ~1852 |
| Catherine Brennan | Daughter | — | 14 | ~1916 |
| Frederick Brennan | Son | — | 5 | ~1925 |
| Peter Brennan | Head | — | 44 | ~1886 |
| Annie Brennan | Other | — | 42 | ~1888 |
| James Brennan | Son | — | 10 | ~1920 |
| Robert Brennan | Son | — | 6 | ~1924 |
| Margaret Brennan | Daughter | — | 3 | ~1927 |
| Lillian Brennan | Daughter | — | 4 | ~1926 |
| William Brennan | Son | — | 12 | ~1918 |
Census Appearances
1920
Essex, Massachusetts
Son, age 2
Essex, Massachusetts · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brennan |
| Given Name | William J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Essex, Massachusetts
Son, age 12
Essex, Massachusetts · implied b. ~1918 — 10 household members
| Surname | Brennan |
| Given Name | William J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| 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 William Brennan across 2 US Census years (1920 and 1930) in Essex, Massachusetts, using XGBoost record linkage.
Show:
This person
Anchor record
William Brennan
Son · 1930 · age 12 · b. ~1918 · Massachusetts
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Sibling
Frederick Brennan
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Brennan
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lillian Brennan
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Brennan
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Brennan
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Brennan
Sibling · 1930 · age 6
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 — Essex, Massachusetts
Open full size
1930 US Federal Census — Essex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel900:0462)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Elizabeth M Chatterton | 40 | Wife-H | Feeder | Massachusetts |
| 52 | Henry J Chatterton | 11 | Son | — | Massachusetts |
| 53 | Ruth L Chatterton | 9 | Daughter | — | Massachusetts |
| 54 | Bernard Healey | 53 | Head | Dealer | Massachusetts |
| 55 | Elizabeth B Healey | 52 | Wife-H | — | Massachusetts |
| 56 | Bernardine Healey | 24 | Daughter | Winder | Massachusetts |
| 57 | Esther L Healey | 20 | Daughter | Clerk | Massachusetts |
| 58 | John J Healey | 17 | Son | — | Massachusetts |
| 59 | Alexander Bergloind | 49 | Head | Laster | Lithuania |
| 60 | Mary Bergloind | 37 | Wife-H | — | Lithuania |
| 61 | Joseph V Spakass | 15 | Boarder | — | Massachusetts |
| 62 | Frank S Mclarran | 53 | Head | Salesman | Massachusetts |
| 63 | Cecelia S Mclarran | 45 | Sister | — | Massachusetts |
| 64 | Harry W Howland | 54 | Head | Crane Operator | Canada English |
| 65 | Florence R Howland | 57 | Wife-H | — | Massachusetts |
| 66 | Lizzie M Piper | 77 | Head | — | Massachusetts |
| 67 | Abby J Shaw | 81 | Boarder | — | England |
| 68 | Alice J Stone | 85 | Boarder | — | Massachusetts |
| 69 | Peter J Brennan | 44 | Head | — | Massachusetts |
| 70 | Annie L Brennan | 42 | Wife-H | — | Massachusetts |
| 71 | Catherine M Brennan | 14 | Daughter | — | Massachusetts |
| 72 | William J Brennan THIS PERSON | 12 | Son | — | Massachusetts |
| 73 | James E Brennan | 10 | Son | — | Massachusetts |
| 74 | Robert J Brennan | 6 | Son | — | Massachusetts |
| 75 | Frederick J Brennan | 5 | Son | — | Massachusetts |
| 76 | Lillian M Brennan | 4 | Daughter | — | Massachusetts |
| 77 | Margaret L Brennan | 3 | Daughter | — | Massachusetts |
| 78 | Catherine E Brennan | 78 | Mother | Practical Nurse | Massachusetts |
| 79 | Mary Nicholson | 67 | Head | — | Irish Free State |
| 80 | Matthew F Donohue | 36 | Head | Carpenter | Irish Free State |
| 81 | Nora M Donohue | 31 | Wife-H | — | Irish Free State |
| 82 | Julia M Donohue | 6 | Daughter | — | Massachusetts |
| 83 | Matthew P Donohue | 5 | Son | — | Massachusetts |
| 84 | William M Smith | 28 | Head | Steam Fitter | Massachusetts |
| 85 | Helen B Smith | 30 | Wife-H | — | Massachusetts |
| 86 | Robert C Graham | 52 | Head | Mason Brick & Plaster | Massachusetts |
| 87 | Florence Graham | 48 | Wife-H | — | Canada English |
| 88 | Robert A Graham | 24 | Son | Salesman | Massachusetts |
| 89 | Albert C Graham | 17 | Son | — | Massachusetts |
| 90 | John Booth | 43 | Head | Salesman | Massachusetts |
| 91 | Margaret E Booth | 47 | Wife-H | — | Massachusetts |
| 92 | Fred C Graham | 57 | Head | Dairyman | Massachusetts |
| 93 | Alice S Graham | 63 | Sister | — | Canada English |
| 94 | Everett T Hamilton | 25 | Boarder | Salesman | Massachusetts |
| 95 | Linda Robinson | 69 | Head | — | England |
| 96 | Stephen Enghoren | 62 | Head | Cutter | Lithuania |
| 97 | Annie L Enghoren | 49 | Wife-H | — | Virginia |
| 98 | Raymond S Enghoren | 17 | Son | Repairman | Massachusetts |
| 99 | Arthur A Morse | 41 | Head | Woodworker | Massachusetts |
| 100 | Bertha M Morse | 42 | Wife-H | — | Massachusetts |
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)