MS
Mary Shannon — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Mary Shannon across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1907), then head of a 8-person household.
Age 33
b. ~1907
Female
Spouse
Born: Irish Free State
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Shannon |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| 1935 Residence (City) | Woburn |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | First papers filed |
| Additional Details | |
| Industry | H |
| Class of Worker | S |
| Income (1939) | 0 |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birthplace (normalized) | irish free state |
| Township / Ward | Woburn |
| Est. Birth Year | ~1907 |
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 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Jane Shannon | Daughter | — | 18 | ~1922 |
| Joseph Shannon | Head | — | 43 | ~1897 |
| Margaret Shannon | Daughter | — | 14 | ~1926 |
| Joseph Shannon | Son | — | 7 | ~1933 |
| John Shannon | Son | — | 9 | ~1931 |
| Annie Shannon | Daughter | — | 11 | ~1929 |
| Mary Shannon | Spouse | — | 33 | ~1907 |
| Francis Shannon | Son | — | 5 | ~1935 |
Census Appearances
1930
Middlesex, Massachusetts
Other, age 28
Middlesex, Massachusetts · implied b. ~1902 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Shannon |
| Given Name | Mary C |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| Naturalization Status | Naturalized |
| Year of Immigration | 1920 |
| Age at First Marriage | 19 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birthplace (normalized) | irish free state |
1940
Middlesex-County, Massachusetts
Spouse, age 33
Middlesex-County, Massachusetts · implied b. ~1907 — 8 household members
| Surname | Shannon |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| 1935 Residence (City) | Woburn |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | First papers filed |
| Industry | H |
| Class of Worker | S |
| Income (1939) | 0 |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birthplace (normalized) | irish free state |
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 Mary Shannon across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Shannon
Spouse · 1940 · age 33 · b. ~1907 · 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-t0627-01622-00421)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Dennis Freeland | 44 | Head | Currier | Massachusetts |
| 42 | Eleanor Freeland | 40 | Wife | — | Canada-English |
| 43 | Dennis Freeland | 15 | Son | — | Massachusetts |
| 44 | Joseph Freeland | 13 | Son | — | Massachusetts |
| 45 | Eleanor Freeland | 11 | Daughter | — | Massachusetts |
| 46 | Joan Freeland | 9 | Daughter | — | Massachusetts |
| 47 | Edward Freeland | 7 | Son | — | Massachusetts |
| 48 | Francis Freeland | 5 | Son | — | Massachusetts |
| 49 | John P. Manning | 50 | Head | Clerk | Massachusetts |
| 50 | Thomas Manning | 56 | Brother | Gardener | Massachusetts |
| 51 | William Clarke | 63 | Nephew | — | Massachusetts |
| 52 | Annie Gilgun | 51 | Head | — | Massachusetts |
| 53 | Mary Gilgun | 25 | Daughter | Secretary | Massachusetts |
| 54 | Annie Gilgun | 23 | Daughter | Waitress | Massachusetts |
| 55 | James Gilgun | 18 | Son | — | Massachusetts |
| 56 | Fred Gilgun | 15 | Son | — | Massachusetts |
| 57 | Thomas Reagan | 83 | Father | — | Irish Free State |
| 58 | Mary Fournier | 65 | Head | — | Massachusetts |
| 59 | Elizabeth Fournier | 60 | Sister | Book Keeper | Massachusetts |
| 60 | John J. Mcprittrick | 22 | Head | — | Massachusetts |
| 61 | Susan Mcprittrick | 69 | Wife | — | Massachusetts |
| 62 | Eunice H. Donahey | 44 | Head | Teacher | Massachusetts |
| 63 | Robert Donahey | 12 | Son | — | Massachusetts |
| 64 | James Donahey | 10 | Son | — | Massachusetts |
| 65 | Owen Cullen | 38 | Head | Laborer | Irish Free State |
| 66 | Bessie Cullen | 38 | Wife | — | Irish Free State |
| 67 | John Cullen | 36 | Brother | Currier | Massachusetts |
| 68 | Ellen Cullen | 11 | Daughter | — | Massachusetts |
| 69 | Ann Cullen | 9 | Daughter | — | Massachusetts |
| 70 | Joseph Cullen | 7 | Son | — | Massachusetts |
| 71 | Edward Cullen | 5 | Son | — | Massachusetts |
| 72 | James Cullen | 3 | Son | — | Massachusetts |
| 73 | Joseph W. Shannon | 43 | Head | Machinist | Massachusetts |
| 74 | Mary Shannon THIS PERSON | 33 | Wife | — | Irish Free State |
| 75 | Jane Shannon | 18 | Daughter | — | Massachusetts |
| 76 | Margaret Shannon | 14 | Daughter | — | Massachusetts |
| 77 | Annie Shannon | 11 | Daughter | — | Massachusetts |
| 78 | John Shannon | 9 | Son | — | Massachusetts |
| 79 | Joseph Shannon | 7 | Son | — | Massachusetts |
| 80 | Francis Shannon | 5 | Son | — | Massachusetts |
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)