WS
William Shannon — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this William Shannon across the 1920 and 1930 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1913), then head of a 7-person household.
Age 17
b. ~1913
Male
Son
Born: Massachusetts
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Middlesex, Massachusetts |
| Surname | Shannon |
| Given Name | William D. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Occupation | Clerk |
| Industry | Express |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Clerk |
| Township / Ward | City Of Medford |
| Est. Birth Year | ~1913 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| Edward Shannon | Son | — | 9 | ~1921 |
| Louise Shannon | Daughter | — | 15 | ~1915 |
| Alice Shannon | Daughter | — | 19 | ~1911 |
| Alice Shannon | Spouse | — | 45 | ~1885 |
| Daniel O'Brien | Other | — | 70 | ~1860 |
| William Shannon | Son | — | 17 | ~1913 |
| Edward Shannon | Head | — | 48 | ~1882 |
Census Appearances
1920
Middlesex, Massachusetts
Son, age 7
Middlesex, Massachusetts · implied b. ~1913 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Shannon |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Son, age 17
Middlesex, Massachusetts · implied b. ~1913 — 7 household members
| Surname | Shannon |
| Given Name | William D. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Clerk |
| Industry | Express |
| 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 William Shannon across 2 US Census years (1920 and 1930) in Middlesex, Massachusetts, using XGBoost record linkage.
Show:
This person
Anchor record
William Shannon
Son · 1930 · age 17 · b. ~1913 · Massachusetts
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Sibling
Alice Shannon
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Louise Shannon
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Shannon
Sibling · 1930 · age 9
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 — Middlesex, Massachusetts
Open full size
1930 US Federal Census — Middlesex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel924:0464)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | John J. Linehan | 32 | Head | Renting | Massachusetts |
| 52 | Helen M. Linehan | 30 | Wife | — | Massachusetts |
| 53 | John D. Linehan | 6 | Son | — | Massachusetts |
| 54 | Jeremiah Linehan | 59 | Head | Smoker | Irish Free State |
| 55 | Mary E. Linehan | 55 | Wife | — | Canada English |
| 56 | Agnes Linehan | 25 | Daughter | Stenographer | Massachusetts |
| 57 | Eleanor Linehan | 22 | Daughter | Stenographer | Massachusetts |
| 58 | John Falcione | 35 | Head | Cook | Italy |
| 59 | Carmela Falcione | 29 | Wife | — | Italy |
| 60 | Anna Falcione | 10 | Daughter | — | Massachusetts |
| 61 | Nicholas Falcione | 9 | Son | — | Massachusetts |
| 62 | John Falcione | 5 | Son | — | Massachusetts |
| 63 | Dorothy Falcione | 3 | Daughter | — | Massachusetts |
| 64 | Herbert Colby | 40 | Head | Pressman | Massachusetts |
| 65 | Marion Colby | 29 | Wife | — | New Hampshire |
| 66 | Victor H. Malo | 30 | Head | Salesman | Massachusetts |
| 67 | Angelina M. Malo | 35 | Wife | — | New Hampshire |
| 68 | Russell V. Malo | 7 | Son | — | Massachusetts |
| 69 | Shirley F. Malo | 3 | Daughter | — | Maine |
| 70 | Louis Seigal | 58 | Head | Salesman | Russia |
| 71 | Rose Seigal | 54 | Wife | — | Russia |
| 72 | Henry H. Block | 53 | Head | Ring Maker | Russia |
| 73 | Ida M. Block | 45 | Wife | — | Russia |
| 74 | Julian L. Block | 17 | Son | — | Massachusetts |
| 75 | Mildred C. Block | 13 | Daughter | — | Massachusetts |
| 76 | Samuel L. Johnston | 63 | Head | Painter | Canada English |
| 77 | Mary E. Johnston | 65 | Wife | — | Canada English |
| 78 | Edward J. Shannon | 48 | Head | Agent | Massachusetts |
| 79 | Alice J. Shannon | 45 | Wife | — | Massachusetts |
| 80 | Alice V. Shannon | 19 | Daughter | Clerk | Massachusetts |
| 81 | William D. Shannon THIS PERSON | 17 | Son | Clerk | Massachusetts |
| 82 | Louise J. Shannon | 15 | Daughter | — | Massachusetts |
| 83 | Edward J. Shannon | 9 | Son | — | Massachusetts |
| 84 | Daniel J. O'Brien | 70 | Father-in-law | Janitor | Massachusetts |
| 85 | Frederick C. Roberts | 50 | Head | Maker | Canada English |
| 86 | Annie T. Roberts | 51 | Wife | — | Irish Free State |
| 87 | Catherine D. Roberts | 21 | Daughter | Stenographer | Massachusetts |
| 88 | Gertrude H. Roberts | 19 | Daughter | Clerk | Massachusetts |
| 89 | Esther A. Roberts | 17 | Daughter | — | Massachusetts |
| 90 | Frederick Roberts | 14 | Son | — | Massachusetts |
| 91 | Mary Roberts | 9 | Daughter | — | Massachusetts |
| 92 | Mary A. Young | 46 | Head | Nurse | Massachusetts |
| 93 | Doris J. Young | 17 | Daughter | Clerk | Massachusetts |
| 94 | Neil Mclean | 48 | Roomer | Setter | Massachusetts |
| 95 | Ernest O'Mara | 38 | Roomer | Salesman | England |
| 96 | Charles B. Delano | 54 | Head | Salesman | Massachusetts |
| 97 | Harriet Delano | 56 | Wife | — | Massachusetts |
| 98 | Louis Locicero | 69 | Head | — | Italy |
| 99 | Mary Locicero | 61 | Wife | — | Italy |
| 100 | Natalio Locicero | 26 | Son | Mechanic | 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)