JL
John Lyons — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Essex-County, Massachusetts
Our Model Tree links this John Lyons across the 1930 and 1940 US Censuses in Essex-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 13-person household.
Age 11
b. ~1929
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, Massachusetts |
| Surname | Lyons |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Danvers town |
| 1935 Residence (County) | Essex |
| Additional Details | |
| Highest Grade | 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Danvers Town |
| Est. Birth Year | ~1929 |
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.
13 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Margaret Lyons | Daughter | — | 18 | ~1922 |
| Eileen Lyons | Daughter | — | 14 | ~1926 |
| Angela Lyons | Daughter | — | 7 | ~1933 |
| Madeline Lyons | Daughter | — | 19 | ~1921 |
| Mary Lyons | Daughter | — | 15 | ~1925 |
| Elizabeth Lyons | Daughter | — | 9 | ~1931 |
| Thomas Lyons | Head | — | 45 | ~1895 |
| Paul Lyons | Son | — | 10 | ~1930 |
| John Lyons | Son | — | 11 | ~1929 |
| Thomas Lyons | Son | — | 17 | ~1923 |
| Richard Lyons | Son | — | 5 | ~1935 |
| Charles Lyons | Son | — | 4 | ~1936 |
| Florence Lyons | Spouse | — | 44 | ~1896 |
Census Appearances
1930
Essex, Massachusetts
Son, age 3
Essex, Massachusetts · implied b. ~1927 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lyons |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Essex-County, Massachusetts
Son, age 11
Essex-County, Massachusetts · implied b. ~1929 — 13 household members
| Surname | Lyons |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Danvers town |
| 1935 Residence (County) | Essex |
| Highest Grade | 4 |
| 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 Lyons across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Lyons
Son · 1940 · age 11 · b. ~1929 · Massachusetts
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Sibling
Richard Lyons
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Lyons
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Madeline Lyons
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paul Lyons
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Lyons
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Lyons
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Lyons
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eileen Lyons
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Lyons
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Angela Lyons
Sibling · 1940 · age 7
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 — Essex-County, Massachusetts
Open full size
1940 US Federal Census — Essex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01579-00172)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Doris E. Parker | 12 | Daughter | — | Massachusetts |
| 2 | William J. Bateman | 34 | Head | Salesman | Massachusetts |
| 3 | Frances W. Bateman | 34 | Wife | — | New Hampshire |
| 4 | Thorne E. Bateman | 7 | Daughter | — | Massachusetts |
| 5 | Bruce D. Bateman | 5 | Son | — | Massachusetts |
| 6 | Frank S. Rougee | 70 | Father-in-law | — | New Hampshire |
| 7 | Gertrude E. Rougee | 65 | Mother-in-law | — | Massachusetts |
| 8 | William H. Kingsley | 55 | Head | Attendant | Nova Scotia |
| 9 | Margaret Kingsley | 49 | Wife | Proprietor | Canada English |
| 10 | George F. O'Reilly | 32 | Son-in-law | Truck Driver | Massachusetts |
| 11 | Myrtle I. O'Reilly | 28 | Daughter | — | Nova Scotia |
| 12 | Shirley R. O'Reilly | 5 | Granddaughter | — | Massachusetts |
| 13 | Francis E. Hackett | 26 | Head | Trucker | Massachusetts |
| 14 | Lillian E. Hackett | 26 | Wife | — | Canada English |
| 15 | Francis W. Hackett | 6 | Son | — | Massachusetts |
| 16 | Henry L. Bernard | 28 | Head | Mason | Canada French |
| 17 | Eva P. Bernard | 30 | Wife | — | Massachusetts |
| 18 | Claire J. Bernard | 7 | Daughter | — | Massachusetts |
| 19 | Marilyn A. Bernard | 4 | Daughter | — | Massachusetts |
| 20 | Carol R. Bernard | 1 | Daughter | — | Massachusetts |
| 21 | Thomas J. Lyons | 45 | Head | Laborer | Massachusetts |
| 22 | Florence T. Lyons | 44 | Wife | — | Massachusetts |
| 23 | Madeline R. Lyons | 19 | Daughter | Floor Girl | Massachusetts |
| 24 | Margaret J. Lyons | 18 | Daughter | Dresser | Massachusetts |
| 25 | Thomas R. Lyons | 17 | Son | — | Massachusetts |
| 26 | Mary G. Lyons | 15 | Daughter | — | Massachusetts |
| 27 | Eileen Lyons | 14 | Daughter | — | Massachusetts |
| 28 | John Lyons THIS PERSON | 11 | Son | — | Massachusetts |
| 29 | Paul Lyons | 10 | Son | — | Massachusetts |
| 30 | Elizabeth M. Lyons | 9 | Daughter | — | Massachusetts |
| 31 | Angela L. Lyons | 7 | Daughter | — | Massachusetts |
| 32 | Richard F. Lyons | 5 | Son | — | Massachusetts |
| 33 | Charles K. Lyons | 4 | Son | — | Massachusetts |
| 34 | Ralph W. Caldwell | 44 | Head | Brush Cutter | Massachusetts |
| 35 | Agnes R. Caldwell | 27 | Wife | — | Massachusetts |
| 36 | John F. Caldwell | 2 | Son | — | Massachusetts |
| 37 | Ralph V. Caldwell | 1 | Son | — | Massachusetts |
| 38 | Edward J. Brennan | 61 | Father-in-law | — | Massachusetts |
| 39 | Francis M. Ruddy | 29 | Head | Truck Driver Helper | Massachusetts |
| 40 | Katherine Ruddy | 28 | Wife | Grid Worker | Massachusetts |
Related Census Records
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)