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Thomas Leonard — 1930 US Census Record
Model Tree available1930 United States Federal Census · Suffolk, Massachusetts
Our Model Tree links this Thomas Leonard across the 1910, 1920 and 1930 US Censuses in Suffolk, Massachusetts (XGBoost, ~Confirmed), with identified parents Patrick & Patrick — first a son (b.~1910), then head of a 5-person household.
Age 20
b. ~1910
Male
Son
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Suffolk, Massachusetts |
| Surname | Leonard |
| Given Name | Thomas M |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | floor man |
| Industry | rubber factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Floor Man |
| Township / Ward | Boston City |
| Est. Birth Year | ~1910 |
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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| William Leonard | Son | — | 22 | ~1908 |
| Mary Leonard | Daughter | — | 18 | ~1912 |
| Bridget Leonard | Head | — | 48 | ~1882 |
| Thomas Leonard | Son | — | 20 | ~1910 |
| Charles Leonard | Son | — | 13 | ~1917 |
Census Appearances
1910
Suffolk, Massachusetts
Son, age 2
Suffolk, Massachusetts · implied b. ~1908 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leonard |
| Given Name | Thos. B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Suffolk, Massachusetts
Son, age 10
Suffolk, Massachusetts · implied b. ~1910 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leonard |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| 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
Suffolk, Massachusetts
Son, age 20
Suffolk, Massachusetts · implied b. ~1910 — 5 household members
| Surname | Leonard |
| Given Name | Thomas M |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | floor man |
| Industry | rubber factory |
| Class of Worker | W |
| Can Read/Write | 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 Thomas Leonard across 3 US Census years (1910, 1920 and 1930) in Suffolk, Massachusetts, using XGBoost record linkage. Identified parents: father Patrick Leonard (~0.92 confidence) and father Patrick Leonard (~0.92 confidence) and mother Bridget Leonard (~0.92 confidence) and mother Mary Leonard (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Patrick Leonard
b. ~1878
Source father
● Household
· direct · ~0.92
Father
Patrick Leonard
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Bridget Leonard
b. ~1882
Source mother
● Household
· direct · ~0.92
Mother
Mary Leonard
b. ~1875
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Leonard
Son · 1930 · age 20 · b. ~1910 · Massachusetts
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Sibling
William Leonard
Sibling · 1930 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Leonard
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Leonard
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:massachusettscensus00reel956:0601)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | John F Kilroy | 19 | Son | Clerk | Massachusetts |
| 52 | Alice L Kilroy | 17 | daughter | None | Massachusetts |
| 53 | Joseph Kennedy | 47 | Head | Mechanic | Massachusetts |
| 54 | Mary A Kennedy | 46 | Wife-H | None | Massachusetts |
| 55 | Joseph S Kennedy | 22 | son | Helper | Massachusetts |
| 56 | Julia Euson | 44 | Head | Saleswoman | Syria |
| 57 | Elias Euson | 19 | son | Mechanic | Massachusetts |
| 58 | Samuel J Euson | 14 | son | None | Massachusetts |
| 59 | Rose Euson | 12 | daughter | None | Massachusetts |
| 60 | George Euson | 9 | son | None | Massachusetts |
| 61 | Bridget Leonard | 48 | Head | Laundress | Ireland |
| 62 | William J Leonard | 22 | son | Lineman | Massachusetts |
| 63 | Thomas M Leonard THIS PERSON | 20 | son | Floor Man | Massachusetts |
| 64 | Mary E Leonard | 18 | daughter | Stenographer | Massachusetts |
| 65 | Charles V Leonard | 13 | son | None | Massachusetts |
| 66 | Carl S Friberg | 48 | Head | Toolmaker | Sweden |
| 67 | Iris H Friberg | 48 | Wife-H | None | Sweden |
| 68 | Karin M Friberg | 23 | daughter | Pack. Girl | Sweden |
| 69 | Lilly Friberg | 18 | daughter | Book-Keeper | Massachusetts |
| 70 | Vivian E Friberg | 14 | daughter | None | Massachusetts |
| 71 | Harry Mullis | 47 | Head | Rubber Maker | England |
| 72 | Lillian Mullis | 41 | Wife-H | None | England |
| 73 | Harry J Mullis | 19 | son | Machinist | Massachusetts |
| 74 | George J Mullis | 14 | son | None | Massachusetts |
| 75 | Arthur E Mullis | 7 | son | None | Massachusetts |
| 76 | John J Parton | 44 | Head | Nightwatchman | Ireland |
| 77 | Mary A Parton | 42 | Wife-H | None | Ireland |
| 78 | Clarissa A Parton | 17 | daughter | None | Massachusetts |
| 79 | Mary V Parton | 15 | daughter | None | Massachusetts |
| 80 | William J Parton | 13 | son | None | Massachusetts |
| 81 | Helena Parton | 12 | daughter | None | Massachusetts |
| 82 | Charles M Parton | 8 | son | None | Massachusetts |
| 83 | Thomas A Thomas | 27 | Head | Waiter | England |
| 84 | Rose V Thomas | 25 | Wife-H | None | England |
| 85 | Alfred W Thomas | 1 | son | None | Massachusetts |
| 86 | Joseph A Thomas | 0 | son | None | Massachusetts |
| 87 | John J Mcnulty | 38 | Head | Plasterer | England |
| 88 | Mary J Mcnulty | 38 | Wife-H | None | Ireland |
| 89 | Jeannette M Mcnulty | 17 | daughter | Bundle Girl | Massachusetts |
| 90 | John T Mcnulty | 14 | son | None | Massachusetts |
| 91 | Margaret A Mcnulty | 10 | daughter | None | Massachusetts |
| 92 | Francis B Mcnulty | 7 | son | None | Massachusetts |
| 93 | Patricia M Mcnulty | 5 | daughter | None | Massachusetts |
| 94 | Frank A Liberatore | 30 | R | Machinist | Massachusetts |
| 95 | Edna A Liberatore | 31 | Wife-H | None | Massachusetts |
| 96 | Doris R Liberatore | 2 | daughter | None | Massachusetts |
| 97 | Albert F Liberatore | 0 | son | None | Massachusetts |
| 98 | Edward Duffy | 35 | Head | Wool Sorter | Ireland |
| 99 | Catherine Duffy | 33 | Wife-H | None | Ireland |
| 100 | William E Duffy | 6 | son | None | Massachusetts |
Pedigree Summary
Thomas + 3 siblings
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)