JF
John Flaherty — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this John Flaherty across the 1920 and 1930 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1881), then head of a 8-person household.
Age 49
b. ~1881
Male
Head
Born: Massachusetts
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Middlesex, Massachusetts |
| Surname | Flaherty |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Age at First Marriage | 24 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Foreman |
| Industry | Gas Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 47 |
| Radio Set | R |
| Veteran | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Foreman |
| Township / Ward | Medford City |
| Est. Birth Year | ~1881 |
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 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Mildred Flaherty | Daughter | — | 26 | ~1904 |
| Sadie Flaherty | Spouse | — | 52 | ~1878 |
| Charles Flaherty | Son | — | 5 | ~1925 |
| Hazel Flaherty | Daughter | — | 14 | ~1916 |
| Ernest Flaherty | Son | — | 16 | ~1914 |
| John Flaherty | Head | — | 49 | ~1881 |
| William Flaherty | Son | — | 24 | ~1906 |
| Leo Flaherty | Son | — | 19 | ~1911 |
Census Appearances
1920
Middlesex, Massachusetts
Son, age 38
Middlesex, Massachusetts · implied b. ~1882 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Flaherty |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Head, age 49
Middlesex, Massachusetts · implied b. ~1881 — 8 household members
| Surname | Flaherty |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Age at First Marriage | 24 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Foreman |
| Industry | Gas Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 47 |
| Radio Set | R |
| Veteran | Yes |
| 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 Flaherty across 2 US Census years (1920 and 1930) in Middlesex, Massachusetts, using XGBoost record linkage.
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This person
Anchor record
John Flaherty
Head · 1930 · age 49 · b. ~1881 · Massachusetts
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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:massachusettscensus00reel924:0245)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frank Gerauld | 81 | Father-in-law | — | Rhode Island |
| 2 | Henry E. Platt | 45 | Head | Office Worker | New Jersey |
| 3 | Rose M. Platt | 41 | Wife | — | Rhode Island |
| 4 | Helen E. Platt | 10 | Daughter | — | Massachusetts |
| 5 | Arthur A. Burns | 29 | Head | Shipper | Massachusetts |
| 6 | Ethel R. Burns | 29 | Wife | — | Massachusetts |
| 7 | Lorraine J. Burns | 1 | Daughter | — | Massachusetts |
| 8 | Anthony Martin | 55 | Head | Flagman | Massachusetts |
| 9 | Julia A. Martin | 50 | Wife | — | Ireland |
| 10 | Mary E. Martin | 20 | Daughter | Stenographer | Massachusetts |
| 11 | Joseph E. Martin | 15 | Son | — | Massachusetts |
| 12 | Helen Martin | 13 | Daughter | — | Massachusetts |
| 13 | Rolland B. Clark | 42 | Head | Telegrapher | New Hampshire |
| 14 | Mildred S. Clark | 45 | Wife | — | California |
| 15 | Rolland B. Jr. Clark | 18 | Son | Office Clerk | Massachusetts |
| 16 | John S. Clark | 14 | Son | — | Massachusetts |
| 17 | Claude M. Churchill | 57 | Head | Machinist | Massachusetts |
| 18 | Ada M. Churchill | 52 | Wife | — | Wales |
| 19 | Leonard Churchill | 23 | Son | Service Man | Massachusetts |
| 20 | Phyllis Churchill | 19 | Daughter | Office Clerk | Massachusetts |
| 21 | A. Julia J. Churchill | 15 | Daughter | — | Massachusetts |
| 22 | Richard D. Churchill | 12 | Son | — | Massachusetts |
| 23 | Katherine Mckinnon | 42 | Head | — | Canada-English |
| 24 | Charles Mckinnon | 20 | Son | Bank Clerk | Maine |
| 25 | Jessie A. Mckinnon | 18 | Daughter | — | Maine |
| 26 | Effie Campbell | 70 | Aunt | — | Scotland |
| 27 | John Flaherty THIS PERSON | 49 | Head | Foreman | Massachusetts |
| 28 | Sadie Flaherty | 52 | Wife | — | Massachusetts |
| 29 | William G. Flaherty | 24 | Son | Retail Salesman | Massachusetts |
| 30 | Mildred A. Flaherty | 26 | Daughter | Cashier | Massachusetts |
| 31 | Leo J. Flaherty | 19 | Son | — | Massachusetts |
| 32 | Ernest Flaherty | 16 | Son | — | Massachusetts |
| 33 | Hazel L. Flaherty | 14 | Daughter | — | Massachusetts |
| 34 | Charles R. Flaherty | 5 | Son | — | Massachusetts |
| 35 | Alphonso Martin | 42 | Head | Insurance Agent | Massachusetts |
| 36 | Mary Martin | 41 | Wife | — | Massachusetts |
| 37 | Hazel Martin | 22 | Daughter | — | Massachusetts |
| 38 | Kenneth Martin | 9 | Son | — | Massachusetts |
| 39 | Evelyn S. Martin | 17 | Daughter | Assembly Clerk | Massachusetts |
| 40 | William H. Horman | 56 | Head | Stationary Engineer | Massachusetts |
| 41 | Mary A. Horman | 54 | Wife | — | Ireland |
| 42 | Kathleen Horman | 4 | Daughter | — | Massachusetts |
| 43 | Benjamin W. Clay | 35 | Head | Manager-Buyer | Ohio |
| 44 | Dolly I. Clay | 37 | Wife | — | Massachusetts |
| 45 | Benjamin W. Jr. Clay | 10 | Son | — | Massachusetts |
| 46 | Henry E. Clay | 8 | Son | — | Massachusetts |
| 47 | Jason G. Clay | 6 | Son | — | Massachusetts |
| 48 | Lawrence Clay | 4 | Son | — | Massachusetts |
| 49 | Lillian Clay | 2 | Daughter | — | Massachusetts |
| 50 | Frederick C. Mihke | 54 | Head | Painter | Germany |
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)