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William Shannon — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this William Shannon across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1904), then head of a 7-person household.
Age 36
b. ~1904
Male
Head
Born: Scotland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Shannon |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Medford city |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Bakery |
| Industry | Bakery Company |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1550 |
| Highest Grade | H-4 |
| 1935 Residence | Same house |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Occupation | Bakery |
| Township / Ward | Medford City |
| Est. Birth Year | ~1904 |
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 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Mildred Shannon | Daughter | — | 7 | ~1933 |
| Eleanor Shannon | Daughter | — | 2 | ~1938 |
| Mary Shannon | Daughter | — | 11 | ~1929 |
| Mary Shannon | Spouse | — | 39 | ~1901 |
| Robert Shannon | Son | — | 9 | ~1931 |
| Kathleen Shannon | Daughter | — | 13 | ~1927 |
| William Shannon | Head | — | 36 | ~1904 |
Census Appearances
1930
Middlesex, Massachusetts
Head, age 26
Middlesex, Massachusetts · implied b. ~1904 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Shannon |
| Given Name | William J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1921 |
| Age at First Marriage | 23 |
| Father's Birthplace | Ireland Northern |
| Mother's Birthplace | Ireland Northern |
| Occupation | Baker |
| Industry | Bakery |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Value / Rent | 10000 |
| Veteran | No |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Middlesex-County, Massachusetts
Head, age 36
Middlesex-County, Massachusetts · implied b. ~1904 — 7 household members
| Surname | Shannon |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Medford city |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | Naturalized |
| Occupation | Bakery |
| Industry | Bakery Company |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1550 |
| Highest Grade | H-4 |
| 1935 Residence | Same house |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
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 (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Shannon
Head · 1940 · age 36 · b. ~1904 · Massachusetts
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01612-00901)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William Geagan | 26 | Head | Salesman | Mass |
| 2 | Rita Geagan | 26 | Wife | — | Mass |
| 3 | Carol A Geagan | 2 | Daughter | — | Mass |
| 4 | William Nowell | 26 | Head | Asst. Manager | Mass |
| 5 | Mary E Nowell | 23 | Wife | — | Mass |
| 6 | Charlotte Nowell | 1 | Daughter | — | Mass |
| 7 | George Maines | 29 | Head | Painter | Massachusetts |
| 8 | Corinne Maines | 35 | Wife | — | Maine |
| 9 | Harold Maines | 13 | Son | — | Massachusetts |
| 10 | Dean Maines | 11 | Son | — | Massachusetts |
| 11 | John Morrissey | 35 | Boarder | — | Massachusetts |
| 12 | John N Connelly | 35 | Head | Truck Driver | Massachusetts |
| 13 | Bertha Connelly | 32 | Wife | — | Mass |
| 14 | Arthur Connelly | 11 | Son | — | Mass |
| 15 | Claire Connelly | 8 | Daughter | — | Mass |
| 16 | Kathryn Connelly | 6 | Daughter | — | Mass |
| 17 | Patrick J Foley | 48 | Head | Salesman | Massachusetts |
| 18 | Mary E Cleaver | 58 | Sister | — | Massachusetts |
| 19 | Muriel E Cleaver | 31 | Niece | Stenographer | Massachusetts |
| 20 | George Kenty | 26 | Head | Agent | Mass |
| 21 | Alice E Kenty | 26 | Wife | — | Mass |
| 22 | Burt Kenty | 5 | Son | — | Mass |
| 23 | John W Gallagher | 24 | Head | Agent | Massachusetts |
| 24 | Claire Gallagher | 19 | Wife | — | Massachusetts |
| 25 | John Jr Gallagher | 2 | Son | — | Massachusetts |
| 26 | Ada Sale | 44 | Mother | Salesgirl | Massachusetts |
| 27 | William Shannon THIS PERSON | 36 | Head | Bakery | Scotland |
| 28 | Mary E Shannon | 39 | Wife | — | Eire |
| 29 | Kathleen Shannon | 13 | Daughter | — | Massachusetts |
| 30 | Mary L Shannon | 11 | Daughter | — | Massachusetts |
| 31 | Robert Shannon | 9 | Son | — | Massachusetts |
| 32 | Mildred Shannon | 7 | Daughter | — | Massachusetts |
| 33 | Eleanor Shannon | 2 | Daughter | — | Massachusetts |
| 34 | Stephen H Nelson | 46 | Head | Supervisor | Massachusetts |
| 35 | Mary E Nelson | 46 | Wife | — | Massachusetts |
| 36 | Stephen Jr Nelson | 20 | Son | Distributor | Massachusetts |
| 37 | Barbara Nelson | 18 | Daughter | — | Massachusetts |
| 38 | Marie Nelson | 16 | Daughter | — | Massachusetts |
| 39 | James Nelson | 14 | Son | — | Massachusetts |
| 40 | Thomas Mcmanmon | 62 | Head | Chef | Eire |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)