JW
John Walsh — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Suffolk, Massachusetts
Our Model Tree links this John Walsh across the 1930 and 1940 US Censuses in Suffolk, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1911), then head of a 12-person household.
Age 19
b. ~1911
Male
Son
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Suffolk, Massachusetts |
| Surname | Walsh |
| Given Name | John F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Helper |
| Industry | Coal Yard |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Helper |
| Township / Ward | Boston City |
| Est. Birth Year | ~1911 |
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.
12 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Margaret Walsh | Daughter | — | 13 | ~1917 |
| Helen Walsh | Daughter | — | 6 | ~1924 |
| Alice Walsh | Daughter | — | 3 | ~1927 |
| Mary Walsh | Daughter | — | 20 | ~1910 |
| Catherine Walsh | Daughter | — | 8 | ~1922 |
| Bartholomew Walsh | Head | — | 44 | ~1886 |
| Patrick Walsh | Son | — | 17 | ~1913 |
| Philip Walsh | Son | — | 15 | ~1915 |
| Thomas Walsh | Son | — | 11 | ~1919 |
| John Walsh | Son | — | 19 | ~1911 |
| Edward Walsh | Son | — | 11 | ~1919 |
| Mary Walsh | Spouse | — | 42 | ~1888 |
Census Appearances
1930
Suffolk, Massachusetts
Son, age 19
Suffolk, Massachusetts · implied b. ~1911 — 12 household members
| Surname | Walsh |
| Given Name | John F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Helper |
| Industry | Coal Yard |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Son, age 28
Suffolk-County, Massachusetts · implied b. ~1912 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Wales |
| Given Name | John F |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston city |
| 1935 Residence (County) | Suffolk |
| Occupation | Filing Clerk |
| Industry | Auto Insurance |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 266 |
| Highest Grade | C 4 |
| 1935 Residence | Same House |
| 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 Walsh across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Walsh
Son · 1930 · age 19 · b. ~1911 · Massachusetts
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Sibling
Philip Walsh
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Walsh
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Walsh
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Walsh
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Walsh
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Walsh
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Walsh
Sibling · 1930 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patrick Walsh
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Walsh
Sibling · 1930 · 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
1930 US Federal Census — Suffolk, Massachusetts
Open full size
1930 US Federal Census — Suffolk, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel943:0157)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Michael J. Molloy | 54 | Head | Fireman | Ireland |
| 52 | Elizabeth Molloy | 38 | Wife | Housewife | Alabama |
| 53 | Michael J. Molloy | 14 | Son | — | Virginia |
| 54 | Lucille D. Molloy | 12 | Daughter | — | Virginia |
| 55 | John J. Molloy | 9 | Son | — | Massachusetts |
| 56 | Mary M. Molloy | 6 | Daughter | — | Massachusetts |
| 57 | Ruth L. Molloy | 1 | Daughter | — | Massachusetts |
| 58 | Bartholomew Walsh | 44 | Head | Laborer | Ireland |
| 59 | Mary A. Walsh | 42 | Wife | Housewife | Ireland |
| 60 | Mary E. Walsh | 20 | Daughter | Sales Lady | Massachusetts |
| 61 | John F. Walsh THIS PERSON | 19 | Son | Helper | Massachusetts |
| 62 | Patrick J. Walsh | 17 | Son | Office Boy | Massachusetts |
| 63 | Philip M. Walsh | 15 | Son | — | Massachusetts |
| 64 | Margaret Walsh | 13 | Daughter | — | Massachusetts |
| 65 | Thomas F. Walsh | 11 | Son | — | Massachusetts |
| 66 | Edward V. Walsh | 11 | Son | — | Massachusetts |
| 67 | Catherine V. Walsh | 8 | Daughter | — | Massachusetts |
| 68 | Helen L. Walsh | 6 | Daughter | — | Massachusetts |
| 69 | Alice T. Walsh | 3 | Daughter | — | Massachusetts |
| 70 | Anna Hassold | 34 | Head | Housewife | Massachusetts |
| 71 | John J. Hassold | 10 | Son | — | Massachusetts |
| 72 | Louise M. Hassold | 9 | Daughter | — | Massachusetts |
| 73 | Richard J. Hassold | 7 | Son | — | Massachusetts |
| 74 | Phyllis Hassold | 4 | Daughter | — | Massachusetts |
| 75 | Mildred E. Hassold | 3 | Daughter | — | Massachusetts |
| 76 | Roderick A. Hassold | 1 | Son | — | Massachusetts |
| 77 | Lorraine D. Hassold | 0 | Daughter | — | Massachusetts |
| 78 | George T. Knight | 50 | Head | Machine Oper | Massachusetts |
| 79 | Emma E. Knight | 49 | Wife | Housewife | Massachusetts |
| 80 | Mary E. Knight | 19 | Daughter | Candy Maker | Massachusetts |
| 81 | George E. Jr. Knight | 12 | Son | — | Massachusetts |
| 82 | William E. Curran | 59 | Head | Laborer | Ireland |
| 83 | Maria J. Curran | 52 | Wife | Housewife | Sweden |
| 84 | John E. Price | 50 | Head | Fireman | Massachusetts |
| 85 | John Walsh | 56 | Head | Fireman | Ireland |
| 86 | Margaret D. Walsh | 55 | Wife | Housewife | Ireland |
| 87 | Edward M. Walsh | 21 | Son | Bookkeeper | Massachusetts |
| 88 | Katherine Walsh | 14 | Daughter | — | Massachusetts |
| 89 | John J. O'Brien | 62 | Head | Fireman | Ireland |
| 90 | Katherine T. O'Brien | 52 | Wife | Housewife | Ireland |
| 91 | Katherine M. O'Brien | 26 | Daughter | Clerk | Massachusetts |
| 92 | William J. O'Brien | 24 | Son | Clerk | Massachusetts |
| 93 | Leo F. O'Brien | 22 | Son | Asst Office | Massachusetts |
| 94 | Agnes R. O'Brien | 21 | Daughter | — | Massachusetts |
| 95 | John D. Sullivan | 31 | Head | Salesman | Ireland |
| 96 | Mary Sullivan | 26 | Wife | Housewife | Ireland |
| 97 | Mary E. Sullivan | 6 | Daughter | — | Massachusetts |
| 98 | John D. Sullivan | 5 | Son | — | Massachusetts |
| 99 | Harold G. Sullivan | 4 | Son | — | Massachusetts |
| 100 | Theresa J. Sullivan | 2 | Daughter | — | Massachusetts |
Related Census Records
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)