ED
Edward Duffy — 1930 US Census Record
Model Tree available1930 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this Edward Duffy across the 1910, 1920 and 1930 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed), with identified parents Edward & Edward — first a head (b.~1902), then head of a 4-person household.
Age 28
b. ~1902
Male
Head
Born: Massachusetts
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Middlesex, Massachusetts |
| Surname | Duffy |
| Given Name | Edward G |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Age at First Marriage | 24 |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Occupation | Salesman |
| Industry | Stoves & Ranges |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 35 |
| Radio Set | R |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Salesman |
| Township / Ward | Somerville City |
| Est. Birth Year | ~1902 |
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 Edward | Age | Birth yr |
|---|---|---|---|---|
| Edward Duffy | Head | — | 28 | ~1902 |
| Mary Duffy | Other | — | 25 | ~1905 |
| John Duffy | Son | — | 1 | ~1929 |
| Edward Duffy | Son | — | 2 | ~1928 |
Census Appearances
1910
Middlesex, Massachusetts
Son, age 9
Middlesex, Massachusetts · implied b. ~1901 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duffy |
| Given Name | Edward G |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Middlesex, Massachusetts
Son, age 18
Middlesex, Massachusetts · implied b. ~1902 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duffy |
| Given Name | Edward |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Collector |
| Industry | Bakery |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Head, age 28
Middlesex, Massachusetts · implied b. ~1902 — 4 household members
| Surname | Duffy |
| Given Name | Edward G |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Age at First Marriage | 24 |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Salesman |
| Industry | Stoves & Ranges |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 35 |
| Radio Set | R |
| 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 Edward Duffy across 3 US Census years (1910, 1920 and 1930) in Middlesex, Massachusetts, using XGBoost record linkage. Identified parents: father Edward Duffy (~0.92 confidence) and father Edward Duffy (~0.92 confidence) and mother Agnes Duffy (~0.92 confidence) and mother Augusta Duffy (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Edward Duffy
b. ~1874
Source father
● Household
· direct · ~0.92
Father
Edward Duffy
b. ~1869
Source father
● Household
· direct · ~0.92
Mother
Agnes Duffy
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Augusta Duffy
b. ~1873
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Edward Duffy
Head · 1930 · age 28 · b. ~1902 · 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 — Middlesex, Massachusetts
Open full size
1930 US Federal Census — Middlesex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel929:0547)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joseph L Bonoit | 1 | Son | — | Massachusetts |
| 2 | James H Bonoit | 0 | Son | — | Massachusetts |
| 3 | Daniel J Hearich | 50 | Head | Operator | Irish Free State |
| 4 | Annie Hearich | 45 | Wife-H | — | Irish Free State |
| 5 | Helen T Hearich | 20 | Daughter | Stenographer | Massachusetts |
| 6 | Lillian J Hearich | 18 | Daughter | Stenographer | Massachusetts |
| 7 | Murray Helen Hearich | 53 | Sister-in-law | Laundress | Irish Free State |
| 8 | James Fitzgerald | 27 | Head | Tallyman | Massachusetts |
| 9 | Alice Fitzgerald | 25 | Wife-H | — | Massachusetts |
| 10 | Alice Fitzgerald | 3 | Daughter | — | Massachusetts |
| 11 | James Fitzgerald | 1 | Son | — | Massachusetts |
| 12 | John L Evoy | 37 | Head | Locksmith | Massachusetts |
| 13 | Ida H Evoy | 40 | Wife-H | — | Massachusetts |
| 14 | Thomas Sullivan | 27 | Head | Salesman | Massachusetts |
| 15 | Julia Sullivan | 52 | Mother-H | — | Irish Free State |
| 16 | Margaret M Sullivan | 24 | Sister | Stenographer | Massachusetts |
| 17 | Joseph P Foster | 53 | Head | Foreman | England |
| 18 | Esther M Foster | 53 | Wife-H | — | Canada English |
| 19 | Edith L Foster | 25 | Daughter | Clerk | Massachusetts |
| 20 | Mary E Foster | 23 | Daughter | Bookkeeper | Massachusetts |
| 21 | Edward G Duffy THIS PERSON | 28 | Head | Salesman | Massachusetts |
| 22 | Mary J Duffy | 25 | Wife-H | — | Massachusetts |
| 23 | Edward G Jr Duffy | 2 | Son | — | Massachusetts |
| 24 | John M Duffy | 1 | Son | — | Massachusetts |
| 25 | Harold E Simpson | 43 | Head | Baker | Massachusetts |
| 26 | Hena G Simpson | 38 | Wife-H | — | Massachusetts |
| 27 | Robert E Simpson | 22 | Son | Manager | Massachusetts |
| 28 | Gertrude H Simpson | 14 | Daughter | — | Massachusetts |
| 29 | John J Lynch | 53 | Head | Shipper | Irish Free State |
| 30 | Mary Lynch | 50 | Wife | — | Irish Free State |
| 31 | Catherine Lynch | 22 | Daughter | Stenographer | Massachusetts |
| 32 | John Lynch | 21 | Son | Chauffeur | Massachusetts |
| 33 | James Lynch | 19 | Son | Bookkeeper | Massachusetts |
| 34 | Edward O'Keefe | 27 | Head | Chauffeur | Massachusetts |
| 35 | Mary O'Keefe | 20 | Wife | Stenographer | Massachusetts |
| 36 | John Morrison | 56 | Head | Starter | Canada English |
| 37 | Jessie K Morrison | 45 | Wife-H | — | Canada English |
| 38 | Mary Morrison | 17 | Daughter | Typist | Massachusetts |
| 39 | Thomas J Penney | 41 | Head | Operator | Massachusetts |
| 40 | Mary S Penney | 37 | Wife-H | — | Massachusetts |
| 41 | Elizabeth F Penney | 12 | Daughter | — | Massachusetts |
| 42 | Peter Oley | 40 | Head | Cabinet Maker | Poland |
| 43 | Barbara Oley | 33 | Wife-H | — | Poland |
| 44 | Walter Oley | 13 | Son | — | Massachusetts |
| 45 | Henry Morris | 27 | Head | Operator | Massachusetts |
| 46 | Josephine E Morris | 57 | Wife-H | — | Massachusetts |
| 47 | Anna J Morris | 27 | Daughter | Comptometer Operator | Massachusetts |
| 48 | Lucy Mccaul | 25 | Daughter | Nursemaid | Massachusetts |
| 49 | Robert O'Neil | 43 | Head | Operator | Irish Free State |
| 50 | Mary O'Neil | 40 | Wife-H | — | Irish Free State |
Pedigree Summary
Edward
Gen 1 · 4 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)