JH
John Hayden — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this John Hayden across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1922), then head of a 8-person household.
Age 18
b. ~1922
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Hayden |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Everett city |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Forester |
| Industry | C.C.C. |
| Class of Worker | GW |
| Hours Worked | 20 |
| Income (1939) | 200 |
| Highest Grade | Hs 1 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Forester |
| Township / Ward | Everett City |
| Est. Birth Year | ~1922 |
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 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Frank Hayden | Son | — | 10 | ~1930 |
| Catherine Hayden | Spouse | — | 40 | ~1900 |
| Douglas Hayden | Son | — | 15 | ~1925 |
| George Hayden | Head | — | 52 | ~1888 |
| George Hayden | Son | — | 20 | ~1920 |
| John Hayden | Son | — | 18 | ~1922 |
| Catherine Hayden | Daughter | — | 17 | ~1923 |
| Alice Hayden | Daughter | — | 13 | ~1927 |
Census Appearances
1930
Middlesex, Massachusetts
Son, age 7
Middlesex, Massachusetts · implied b. ~1923 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hayden |
| Given Name | John H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Canada English |
| Mother's Birthplace | Canada English |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Son, age 18
Middlesex-County, Massachusetts · implied b. ~1922 — 8 household members
| Surname | Hayden |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Everett city |
| 1935 Residence (County) | Middlesex |
| Occupation | Forester |
| Industry | C.C.C. |
| Class of Worker | GW |
| Hours Worked | 20 |
| Income (1939) | 200 |
| Highest Grade | Hs 1 |
| 1935 Residence | Same place |
| 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 John Hayden across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Hayden
Son · 1940 · age 18 · b. ~1922 · Massachusetts
★ You are viewing this record
Sibling
George Hayden
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Hayden
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frank Hayden
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Douglas Hayden
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Hayden
Sibling · 1940 · age 13
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 — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01605-00288)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | William Murray | 51 | Head | Watchman | Massachusetts |
| 42 | George Hayden | 52 | Head | Springmaker | Prince Edward Island |
| 43 | Catherine Hayden | 40 | Wife | — | Massachusetts |
| 44 | George Jr. Hayden | 20 | Son | Machine Operator | Massachusetts |
| 45 | Catherine Hayden | 17 | Daughter | Machine | Massachusetts |
| 46 | John Hayden THIS PERSON | 18 | Son | Forester | Massachusetts |
| 47 | Douglas Hayden | 15 | Son | — | Massachusetts |
| 48 | Alice Hayden | 13 | Daughter | — | Massachusetts |
| 49 | Frank Hayden | 10 | Son | — | Massachusetts |
| 50 | John T. Le Pore | 38 | Head | Druggist | Massachusetts |
| 51 | Agnes Le Pore | 35 | Wife | — | Massachusetts |
| 52 | Geraldine Le Pore | 15 | Daughter | — | Massachusetts |
| 53 | Antony Palumbo | 26 | Head | Lumper | Massachusetts |
| 54 | Catherine Palumbo | 26 | Wife | — | Massachusetts |
| 55 | Richard Palumbo | 0 | Son | — | Massachusetts |
| 56 | William Connell | 39 | Head | Toolmaker | Massachusetts |
| 57 | Mary Connell | 38 | Wife | — | Massachusetts |
| 58 | William Connell | 14 | Son | — | Massachusetts |
| 59 | Harold Connell | 15 | Son | — | Massachusetts |
| 60 | Paul Nadolny | 42 | Head | Painter | Poland |
| 61 | Sophie Nadolny | 42 | Wife | — | Poland |
| 62 | Alexander Nadolny | 22 | Son | New Worker | Massachusetts |
| 63 | Charles Nadolny | 19 | Son | New Worker | Massachusetts |
| 64 | Helen Nadolny | 17 | Daughter | — | Massachusetts |
| 65 | Edward Nadolny | 11 | Son | — | Massachusetts |
| 66 | John Iwanicki | 53 | Head | Laborer | Poland |
| 67 | Nellie Iwanicki | 49 | Wife | — | Poland |
| 68 | Frank Iwanicki | 22 | Son | Worker | Massachusetts |
| 69 | Alexander Iwanicki | 21 | Son | New Worker | Massachusetts |
| 70 | Sophie Iwanicki | 18 | Daughter | New Worker | Massachusetts |
| 71 | Joseph Iwanicki | 17 | Son | New Worker | Massachusetts |
| 72 | Steven Iwanicki | 11 | Son | — | Massachusetts |
| 73 | Antony Bizzarro | 31 | Head | Machine Operator | Massachusetts |
| 74 | Nora Bizzarro | 28 | Wife | — | Massachusetts |
| 75 | Richard Bizzarro | 4 | Son | — | Massachusetts |
| 76 | Leonard Bizzarro | 55 | Head | Laborer | Italy |
| 77 | Rose Bizzarro | 53 | Wife | — | Italy |
| 78 | Dominic Bizzarro | 23 | Son | Laborer | Massachusetts |
| 79 | Henrietta Deeley | 64 | Head | — | Massachusetts |
| 80 | Chester Deeley | 33 | Son | Roofer | Massachusetts |
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)