JW
John Welsh — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Essex, Massachusetts
Our Model Tree links this John Welsh across the 1930 and 1940 US Censuses in Essex, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1923), then head of a 7-person household.
Age 7
b. ~1923
Male
Son
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Essex, Massachusetts |
| Surname | Welsh |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | England |
| 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 | ~1923 |
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.
7 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| James Welsh | Son | — | 10 | ~1920 |
| Mary Welsh | Spouse | — | 44 | ~1886 |
| William Welsh | Son | — | 3 | ~1927 |
| John Welsh | Son | — | 7 | ~1923 |
| James Welsh | Head | — | 38 | ~1892 |
| Catherine Welsh | Daughter | — | ~1930 | |
| Phyllis Welsh | Daughter | — | 5 | ~1925 |
Census Appearances
1930
Essex, Massachusetts
Son, age 7
Essex, Massachusetts · implied b. ~1923 — 7 household members
| Surname | Welsh |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | England |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Essex-County, Massachusetts
Son, age 18
Essex-County, Massachusetts · implied b. ~1922 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Walsh |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Beverly City |
| 1935 Residence (County) | Essex |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | No 8-4 |
| 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 Welsh across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Welsh
Son · 1930 · age 7 · b. ~1923 · Massachusetts
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Sibling
Phyllis Welsh
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Welsh
Sibling · 1930 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Welsh
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Welsh
Sibling · 1930 · age 10
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:massachusettscensus00reel899:0345)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Marjorie R. Robinson | 12 | Daughter | — | Massachusetts |
| 2 | George W. Jr. Robinson | 9 | Son | — | Massachusetts |
| 3 | Aubrey E. Robinson | 6 | Son | — | Massachusetts |
| 4 | Mary Robinson | 3 | Daughter | — | Massachusetts |
| 5 | Robert E. Robinson | 1 | Son | — | Massachusetts |
| 6 | William J. Dwyer | 40 | Head | Foreman | New York |
| 7 | Lena Dwyer | 38 | Wife | — | Irish Free State |
| 8 | Francis W. Dwyer | 9 | Son | — | Massachusetts |
| 9 | Rita L. Dwyer | 6 | Daughter | — | Massachusetts |
| 10 | Thomas J. Dwyer | 5 | Son | — | Massachusetts |
| 11 | M. Margaret Dwyer | 0 | Daughter | — | Massachusetts |
| 12 | John J. Leary | 49 | Lodger | Laborer | Massachusetts |
| 13 | George E. Perkins | 42 | Head | Sheet Cutter | Massachusetts |
| 14 | Mary E. Perkins | 37 | Wife | — | Canada English |
| 15 | Dorothy E. Perkins | 14 | Daughter | — | Massachusetts |
| 16 | Francis W. Perkins | 12 | Son | — | Massachusetts |
| 17 | Arthur W. Perkins | 11 | Son | — | Massachusetts |
| 18 | Virginia M. Perkins | 6 | Daughter | — | Massachusetts |
| 19 | Ruth L. Perkins | 3 | Daughter | — | Massachusetts |
| 20 | Michael J. Kehoe | 44 | Brother-in-law | Box Maker | Canada English |
| 21 | William H. Kehoe | 42 | Brother-in-law | Laborer | Canada English |
| 22 | Antonetta Pascale | 64 | Head | — | Italy |
| 23 | Lando Pascale | 23 | Son | — | Massachusetts |
| 24 | Louis Pascale | 21 | Son | Chauffeur | Massachusetts |
| 25 | Francesco De Bicco | 53 | Head | Laster | Italy |
| 26 | Mary De Bicco | 46 | Wife | — | Italy |
| 27 | Pasquale De Bicco | 29 | Son | Blacksmith | Italy |
| 28 | Judith De Bicco | 11 | Daughter | — | Massachusetts |
| 29 | Arthur De Bicco | 9 | Son | — | Massachusetts |
| 30 | James G. Welsh | 38 | Head | Stationary Fireman | England |
| 31 | Mary E. Welsh | 44 | Wife | — | Massachusetts |
| 32 | James W. Welsh | 10 | Son | — | Massachusetts |
| 33 | John J. Welsh THIS PERSON | 7 | Son | — | Massachusetts |
| 34 | Phyllis M. Welsh | 5 | Daughter | — | Massachusetts |
| 35 | William R. Welsh | 3 | Son | — | Massachusetts |
| 36 | Catherine E. Welsh | 0 | Daughter | — | Massachusetts |
| 37 | John F. Norton | 48 | Head | Walker | Massachusetts |
| 38 | Elizabeth Norton | 48 | Wife | — | Massachusetts |
| 39 | Francis J. Norton | 19 | Son | Leather Worker | Massachusetts |
| 40 | Robert W. Norton | 17 | Son | — | Massachusetts |
| 41 | Thomas F. Hogan | 38 | Head | Leather Worker | Massachusetts |
| 42 | Mary F. Hogan | 36 | Wife | French Cord Presser | Massachusetts |
| 43 | Madeline R. Hogan | 13 | Daughter | — | Massachusetts |
| 44 | Catherine E. Hogan | 11 | Daughter | — | Massachusetts |
| 45 | William E. Donahue | 34 | Head | Fireman | Massachusetts |
| 46 | Catherine A. Donahue | 32 | Wife | — | Canada English |
| 47 | William E. Jr. Donahue | 6 | Son | — | Massachusetts |
| 48 | Barbara R. Donahue | 4 | Daughter | — | Massachusetts |
| 49 | Robert J. Donahue | 0 | Son | — | Massachusetts |
| 50 | Bruna Di Bicco | 7 | Daughter | — | 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)