MD
Mary Doran — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Mary Doran across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1922), then head of a 12-person household.
Age 18
b. ~1922
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Doran |
| Given Name | Mary J |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Somerville City |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Highest Grade | C 1 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Somerville City |
| Est. Birth Year | ~1922 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Eleanor Doran | Daughter | — | 10 | ~1930 |
| Marguerite Doran | Daughter | — | 12 | ~1928 |
| Mary Doran | Daughter | — | 18 | ~1922 |
| Lois Doran | Daughter | — | ~1940 | |
| William Doran | Son | — | 1 | ~1939 |
| Marie Doran | Daughter | — | 3 | ~1937 |
| Edward Doran | Son | — | 13 | ~1927 |
| Francis Doran | Son | — | 7 | ~1933 |
| Hilda Doran | Spouse | — | 47 | ~1893 |
| Maurice Doran | Head | — | 51 | ~1889 |
| Dorothy Doran | Daughter | — | 16 | ~1924 |
| Elizabeth Doran | Daughter | — | 15 | ~1925 |
Census Appearances
1930
Middlesex, Massachusetts
Daughter, age 8
Middlesex, Massachusetts · implied b. ~1922 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Doran |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Newfoundland |
| Mother's Birthplace | Newfoundland |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Daughter, age 18
Middlesex-County, Massachusetts · implied b. ~1922 — 12 household members
| Surname | Doran |
| Given Name | Mary J |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Somerville City |
| 1935 Residence (County) | Middlesex |
| Highest Grade | C 1 |
| 1935 Residence | Same place |
| 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 Mary Doran across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Doran
Daughter · 1940 · age 18 · b. ~1922 · Massachusetts
★ You are viewing this record
Sibling
Elizabeth Doran
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Doran
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eleanor Doran
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marguerite Doran
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Doran
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Doran
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marie Doran
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lois Doran
Sibling · 1940 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Doran
Sibling · 1940 · age 16
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
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-t0627-01705-00139)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Sore Fredrich | 65 | Boarder | — | Massachusetts |
| 42 | Maurice Doran | 51 | Head | Carpenter | English Canada |
| 43 | Hilda Doran | 47 | Wife | — | English Canada |
| 44 | Mary J Doran THIS PERSON | 18 | Daughter | — | Massachusetts |
| 45 | Dorothy A Doran | 16 | Daughter | — | Massachusetts |
| 46 | Elizabeth A Doran | 15 | Daughter | — | Massachusetts |
| 47 | Edward H Doran | 13 | Son | — | Massachusetts |
| 48 | Marguerite Doran | 12 | Daughter | — | Massachusetts |
| 49 | Eleanor L Doran | 10 | Daughter | — | Massachusetts |
| 50 | Francis Doran | 7 | Son | — | Massachusetts |
| 51 | Marie Doran | 3 | Daughter | — | Massachusetts |
| 52 | William Doran | 1 | Son | — | Massachusetts |
| 53 | Lois Doran | 0 | Daughter | — | Massachusetts |
| 54 | Willoughby Anthony | 66 | Head | Carpenter | England |
| 55 | Lavinia Anthony | 67 | Wife | — | England |
| 56 | Francis J Anthony | 28 | Daughter | Biller | English Canada |
| 57 | Ellen F Murdoch | 53 | Head | — | Massachusetts |
| 58 | Ellen M Murdoch | 26 | Daughter | Clerk | Massachusetts |
| 59 | Veronica Murdoch | 22 | Daughter | Clerk | Massachusetts |
| 60 | John L Murdoch | 20 | Son | Shipper | Massachusetts |
| 61 | George E Murdoch | 18 | Son | — | Massachusetts |
| 62 | Mary J Murdoch | 14 | Daughter | — | Massachusetts |
| 63 | George Newman | 32 | Nephew | Salesman | Massachusetts |
| 64 | Grace Morley | 80 | Head | — | Massachusetts |
| 65 | Earle H Smith | 25 | Head | Credit Man | Massachusetts |
| 66 | Alice D Smith | 24 | Wife | — | Massachusetts |
| 67 | Edmund C Smith | 4 | Son | — | Massachusetts |
| 68 | Richard N Smith | 3 | Son | — | Massachusetts |
| 69 | Fine A. Valentine | 35 | Head | Labourer | Italy |
| 70 | Margaret M Valentine | 25 | Wife | — | Massachusetts |
| 71 | Daniel J Coughlin | 29 | Head | Co. Repairer | Massachusetts |
| 72 | Ester F Coughlin | 26 | Wife | — | Massachusetts |
| 73 | George E Homsy | 53 | Head | Retail Store | Syria |
| 74 | Wedad Homsy | 37 | Wife | — | Syria |
| 75 | Charles Homsy | 12 | Son | — | Massachusetts |
| 76 | Margaret Homsy | 10 | Daughter | — | Massachusetts |
| 77 | Rose Homsy | 8 | Daughter | — | Massachusetts |
| 78 | Priscilla Homsy | 5 | Daughter | — | Massachusetts |
| 79 | John Hersion | 58 | Head | Carpenter | Ireland |
| 80 | Margaret Hersion | 57 | Wife | — | Ireland |
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)