MC
Marion Clark — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Marion Clark across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1899), then head of a 10-person household.
Age 41
b. ~1899
Female
Spouse
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Clark |
| Given Name | Marion |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston City |
| Est. Birth Year | ~1899 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Marion | Age | Birth yr |
|---|---|---|---|---|
| Delores Clark | Daughter | — | 7 | ~1933 |
| Virginia Clark | Daughter | — | 11 | ~1929 |
| Diane Clark | Daughter | — | 3 | ~1937 |
| Marion Clark | Spouse | — | 41 | ~1899 |
| Bertie Clark | Daughter | — | 13 | ~1927 |
| Mary Clark | Head | — | 45 | ~1895 |
| George Clark | Son | — | 15 | ~1925 |
| Victoria Clark | Daughter | — | 9 | ~1931 |
| Edith Clark | Daughter | — | 17 | ~1923 |
| Bobby Clark | Son | — | 6 | ~1934 |
Census Appearances
1930
Suffolk, Massachusetts
Other, age 31
Suffolk, Massachusetts · implied b. ~1899 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Marion A |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Age at First Marriage | 24 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Spouse, age 41
Suffolk-County, Massachusetts · implied b. ~1899 — 10 household members
| Surname | Clark |
| Given Name | Marion |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Class of Worker | 0 |
| Highest Grade | H 4 |
| 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 Marion Clark across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Marion Clark
Spouse · 1940 · age 41 · b. ~1899 · 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 — Suffolk-County, Massachusetts
Open full size
1940 US Federal Census — Suffolk-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01679-00603)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lilian Logue | 16 | Daughter | — | Massachusetts |
| 42 | Mary Logue | 14 | Daughter | — | Massachusetts |
| 43 | Joseph Logue | 12 | Son | — | Massachusetts |
| 44 | Alfred Logue | 11 | Son | — | Massachusetts |
| 45 | Robert Logue | 9 | Son | — | Massachusetts |
| 46 | Michael Harkins | 37 | Head | Clerk-Office | Irish Free State |
| 47 | Margaret Harkins | 36 | Wife | — | Irish Free State |
| 48 | Ann Harkins | 11 | Daughter | — | Massachusetts |
| 49 | Margaret Harkins | 10 | Daughter | — | Massachusetts |
| 50 | James Harkins | 9 | Son | — | Massachusetts |
| 51 | John Harkins | 6 | Son | — | Massachusetts |
| 52 | Daniel Harkins | 5 | Son | — | Massachusetts |
| 53 | Kevin Harkins | 4 | Son | — | Massachusetts |
| 54 | Paul Harkins | 2 | Son | — | Massachusetts |
| 55 | Joseph Riley | 45 | Head | Writer Dept. Supt. | Massachusetts |
| 56 | Marie Riley | 39 | Wife | — | Massachusetts |
| 57 | Robert Riley | 10 | Son | — | Massachusetts |
| 58 | Richard Riley | 8 | Son | — | Massachusetts |
| 59 | Peter Faherty | 57 | Head | Craftsman | Rhode Island |
| 60 | Joan Faherty | 58 | Wife | — | Rhode Island |
| 61 | Mary O'Neil | 48 | Lodger | — | Massachusetts |
| 62 | Catherine Mac Pherson | 42 | Lodger | — | Massachusetts |
| 63 | Vincent Costanza | 37 | Head | Leather Cutter | Massachusetts |
| 64 | Elizabeth Costanza | 34 | Wife | — | Rhode Island |
| 65 | Marion Costanza | 14 | Daughter | — | Massachusetts |
| 66 | Elizabeth Costanza | 10 | Daughter | — | Massachusetts |
| 67 | Mary Costanza | 8 | Daughter | — | Massachusetts |
| 68 | Pasquale Costanza | 5 | Son | — | Massachusetts |
| 69 | Cornelius Whitton | 34 | Head | Bookkeeper | Massachusetts |
| 70 | Mary Clark | 45 | Head | Letter Carrier | Ireland |
| 71 | Marion Clark THIS PERSON | 41 | Wife | — | Massachusetts |
| 72 | Edith Clark | 17 | Daughter | — | Massachusetts |
| 73 | George Clark | 15 | Son | — | Massachusetts |
| 74 | Bertie Clark | 13 | Daughter | — | Massachusetts |
| 75 | Virginia Clark | 11 | Daughter | — | Massachusetts |
| 76 | Victoria Clark | 9 | Daughter | — | Massachusetts |
| 77 | Delores Clark | 7 | Daughter | — | Massachusetts |
| 78 | Bobby Clark | 6 | Son | — | Massachusetts |
| 79 | Diane Clark | 3 | Daughter | — | Massachusetts |
| 80 | Daniel Plunkett | 51 | Head | Clerk-Office | Massachusetts |
Related Census Records
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)